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Thanks for the wonderful video, and a huge thanks for not ruining it with crappy background music. I don't know why some people are compelled to add annoying background music throughout their videos.
I have the Weichi 1000 and find it invaluable to checking on the health of my watches, which are almost exclusively mechanical and automatic pieces. One thing I would caution the new user of this machine against is falling into the trap of becoming obsessed with chasing "perfect" flat line readings from their watches. In reality watch beat rates, amplitudes and beat errors vary throughout the day due to watch position, temp, shocks etc. Over the course of a day these factors may even out to offer a watch which, by the day, is very accurate, but by snap measurement, might seem quite a long way out of spec. It's worth noting that COSC themselves certify "Chronometers" by checking these readings at five different positions and three different ambient temperatures. Probably the most significant figure this testing reveals is the "Delta" (deviation in beat rates across the five positions).
I agree. A watch accuracy is the result of errors compensations over the day and the “right” time is an average of the variations that a watch normally has in normal use. Spot measurement are a snap picture and do not worth becoming obsessed with.
Great video and really helpful and informative. The app (which I’ve just bought) now states the best results are from placing the headset mic against the crown of the watch. I’ve done this using blutack to hold the mic secure against the crown. The results are far more reliable and far less susceptible to outside interference. I’d love to see a rematch using this method. I’m really happy with the results of the app and have already regulated some of my watches with great success.
I have used an app called 'Watch Accuracy Meter' on an android phone - it seems to work well. I don't use the external mic. I just hold the phone upright, with the phone's mic sitting on the watch back or face. It gives a great trace line, and I have adjusted a couple of watches that now have a very low beat error and are accurate to within a few seconds a day. Thanks for the video.
Sounds good, however, I find significant difference between on edge vs face up. On edge, there is a difference between crown up or crown down (where the watch resides much of the time while wearing it). I see most time grapher tests done with the face up. My watch is face up if my hand is on a table, but crown down while standing, on edge crown forward while reading a book. Each of these likely have a different s/d. My watch winder swings, (it's a feichongho) with the crown up. I suppose you need to live a week or two and check time gain or loss to get an accurate average for your life style.
I've been using it also. Works great. I can even check a watch at a store on the spot. Lots of fun. I used it to regulate an SW 200. Went from +29s/d to +1s/d.
I use it too it works great I've checked it against a timegrapher in a horologists workshop. With my Breitling it even shows the amplitude with the correct lift angle entered into the settings, with my Planet Ocean coaxial 8900 the amplitude/lift angle function doesn't work but it still shows the correct beat error and rate.
I was playing around with an Android app, using the same microphone as you show. I found I got a much cleaner trace by sitting the watch, dial down, on top of the microphone. Better still setting the microphone into a slot in a wooden block, basically the firmer the mic was held the cleaner the trace.
The major difference between the timegrapher and the app is the way in which the microphone is used to pick up sound from the watch. The microphone used by the app was just laid on the watch. Had the microphone been more firmly attached with some form of spring clip and the sensitivity adjusted, I feel the app would have given almost exactly the same information. Certainly from an electronics point of view, the two devices are identical. The only difference is the way in which the microphone is attached to the watch case. If you are good enough mechanically to be adjusting watches, then knocking up a decent clamp to hold a phone microphone securely against a watch case will be a trivial exercise.
💯 spot on. I use a spring clamp to hold a dedicated mic firmly under my watches. I also place both watch & mic in a small soundproof container stuffed with small cloth (my mic is super sensitive so I'm just trying to limit sound pollution). When used correctly, the app is exactly as accurate as a dedicated device. If not more accurater 😅
I bought a Weishi 1900 this summer to regulate my microbrand watches, and my first try was on a cheap homage based on an NH35. It now runs at -1.5s/day with a near-zero beat error. Glad of the investment! 👍
For the price difference, I say the app is doing a pretty decent job as is. I can see you have the noise cancelling on, which I think might be messing up with the apps "listening" as it uses algorithms to substract what it thinks is "noise" from what it thinks is "sound". In a very quiet environment there won't be any noise to substract, so it may be just messing up with the quality of the sound while trying to do it's thing. What I would do, in addition to providing a silent environment, is to put the watch in a small styrofoam box (a very good sound insulator) and tape the microphone on it firmly, preferably with the back cover open. This will be the ideal "listening" environment for the app and I am sure it will produce much accurate results.
I just got the app and after a few tries I got some fairly accurate readings. (I checked with tha app, then timed the watch for 12 hours in the same position) They ended up very close. I ended up tweaking the sensitivity and noise cancelling, AND took the back of the watch off. Then I rubber-banded the watch OVER the mic on a watch pillow. This deadened other sounds except the balance. If the mic was as close to the balance as possible I got nice lines and good readings. Yes harder to use than a real watchgrapher, but still able to get good results. Thanks for the review (months too late...)
Thats great. If you are getting good results from the app then fantastic. for me not so positive. I think its good for checking but for real time use on a service its not practical. I will have a watch on the timegrapher with the back off making adjustments and seeing the results of those adjustments real time. The app serves a purpose but ultimately in my opinion the machine is the only viable solution if you are working on movements.
Good video. Gave me a lot of data on the data that the Weishi Timegrapher displays. And saved me a few dollars (since I was considering buying an app). Keep up the great videos!
Mike, the info you shared on how to use and read on the timegrapher has proven to me that I probably should invest in one. Thank you for your time and effort! Your explanation is very clear on how to utilize both instruments. Mr D..U.S.A.
Dennis Allport thank you so much for your comment as ones like these makeshifts effort to make these videos worth it. The Weishi 1000 is a worthy investment. Stay tuned as a how to regulate video will be coming very soon
I learned a lot from that video. The difference between the 1000 and the phone app. If I was going to land on the moon in a calculated spot. I would use the 1000, If I wanted to get close, I would use the app :) Subscribed ! because I'm all about comparison testing. Thank you sir
I'm a year late, having just joined the watch collection gang! Excellent test. I'm involved in electronic engineering and resonance equipment such as that used in CT scanning but for industrial use. You might have gotten some of the anomalies of the amplitude you noticed due to feedback between the mikes and (more likely)interference within the headphones, as even good quality buds are not really of good quality. İf you do the test separately, and don't use the headphones, put the watch close to the phone microphone directly and put the phone and watch on a soft towel or similar to reduce external micro vibrations you might find that the app can give you a more accurate reading. I've just subscribed, looking forward to seeing your other videos. 👍
@@MyRetroWatches shame as it'd be goo to see the improvements using different techniques as well as improvements in the app. Even grab a cheap Android phone and test a few of the free apps. (I've tried a few and they look good but nothing to compare to) But it'll take someone with a good machine to compare with to give meaningful results.
Replying another year further along from this comment. I used a different Android app but used this technique of placing the watch near the phone microphone on a firm but soft surface. No time grapher to compare to but the results were consistent when repeated and against the general known accuracy from long term observation. Thanks for the video Mike!
Informative indeed. I have been using a free Android timegraph app which works much like the app you tested in this video. As you pointed out the thing can at least give one an idea of the gain or loss of time and then one can go to trial and error tweaking the timing in the watch. I think I'm going to fork over the money for a Weishi timegrapher instead. I'm not a professional watch repairman but I'm a long retired computer programmer in need of more things with which to tinker. Thanks for the video.
For an app costing about 1/100 of the timegraph machine, I say it was really good. You’ll find betty readings when the back cover of the watch is removed. I did so and the app was really accurate. I do home repairs for my watch collection and it is not reasonable to buy a thousand dollar device where I can get to fairly same readings with 12 dollars!
Okay so I did a follow up video to this which perhaps you should also see. Your costing is off too. The timegrapher cost £120 and the app at the time was near £20 from memory. The app was never going to beat the machine anyway as if you work on watches like I do you could never use the app in real time and make adjustments. Equally you can’t check it in other positions .
Great video and I’ll be looking at the app just to try it out but ultimately I’d love the actual timegrapher and learned a lot from this video. Thank you for posting.
Thank you for this usefull comparative test. More than 160 views in just a few minutes tells how hungry we are about seeing your videos. In this particular one I think the app could be used to have an idea of the daily rate of a watch, but if you try to set the BE using it you may end disadjusting it!
Agustin Aguilar thanks I’m happy you enjoyed this one , took a bit of editing ! Thing with timegraphers is really you need a good wind in the mainspring otherwise you can get false readings. The app has its place and what would be interesting is to do free app vs paid app and see what difference there is.
Theirs a free app available for (Android) "watch accuracy meter" which works great once you figure out how to use it properly. Key is to keep the mic hole firmly up against the case back. Doesn't work as well on the crystal. You get a really strong trace with this app and regulating the watch is very effective.
great video thank you for taking the time to share!! i really want to learn how to regulate them myself but am hesitant on taking that step. at least now I know with certainty which tool to buy on my journey thank you for that! you have some really cool watches too they were great!!
With the app, try putting the watch into makeshift sound deadening pouch.... something lined with foam. That would help with reverberations and ambient sounds.
App accuracy is depending on how good of mic and how quiet of room, then choose version 3 option. If room is noisy, the only option that still can work is version 1 which not quite accurate but the easiest to work with. I use food container and close the lip to make it quietest as possible and also wind the watch to max.
Thank you Mike, this really is a useful comparison. My ‘takeaway’ was that the app would be interesting as an indication if your watch might need a service but if you have any plan to do some work inside then the timegrapher is the one to use. I did wonder if a better mic and physical coupling to the watch case would give better results for the app but in the end there is a limit to what is worthwhile given how affordable the Weishi is. Great watches by the way and that Longines is certainly going well for its age!
Morgan David thank you sir. I did do a continuation to this video where I used my lapel mic (only external mic I have) might be worth checking that video out. No app will beat the Weishi as they are not really compatible . The idea was to see just how good or bad and app performs against a known and reliable purpose built machine .
I have a couple of free apps from the playstore for android phones. I bluetack the phone headset to the watch face listen to the watch and threy work great. The only setting that is missing from the actual timegrapher machine is the amplitude. All other settings are available. 👍😁⌚
This video was so useful by the way!... that app is not so bad actually... I wonder if you could improve its result (by increasing the sensitivity or by opening the case back, etc...)
Jerome Jeronimo thanks for your comments . Regulating vid will be soon I think as it not so hard to film and for once might be a shorter video... Yes perhaps improvement could be made but the sensitivity is just that too much and it gets worse. I have tried before with the caseback off and it didn’t really read any better. If you watch the on screen layer in the video it hardly ever goes red on “sound samples” meaning it’s hearing fine and no background noise interfering . If you see near the start when I am talking about the app while it’s running you see it go read each time I speak..
Thanks for your reply! Actually because of your well made and super friendly video I decided to finally purchase all the remaining tools I will need to restore o(r mess with) some watches... it has been years since I hope to do it... I found your website very good for people like me... I purchased a few items with the links you put. Cheers
Used one in late 1970's it printed dots on paper roll but the actual print out looked just like timegrapher screen it was used at work to check lorry tachograph clocks but used loads for checking and setting watches
I’ve got problems with nh35 movement watch I just bought so hoping the app might guide me with some information I can’t buy the timegrapher it’s to expensive
I have a strong preference for 'leave it running for a day - on your wrist - and see how the accuracy is. I get very different errors between vertical and horizontal, as well as face up and face down.... so what matters is how it averages over a day of wear.
Hi thanks for your efforts. Looks like you have not increased the sensitivity of the app microphone. I have used a similar app and it need to be increased to approx 40 /50 to read properly.
Thank you for your video! Just ordered a Weichi 1000. One of the reasons besides of your great review - the phone app that I use doesn't support all beat rates.
Your app is picking up the piano music, which explains the snowstorm-like plots. 😊 But seriously, apps can be very good if you use a proper microphone, or if you can adapt and use the Weishi pickup mic. I use a piezoelectric sensor as the mic and it works very well with my phone app, and it's not sensitive to the background noise.
My Orient Kamasu has an F6922 movement, and when i wear it, it gains about +120 seconds a day, but if i dont wear it it loses -60 seconds a day. I have tried regulating it, but it seems that the ammount of barrel wound is what affects its speed. Why is this? Could it be that it has Beat Error? Thank you in advance
Glad I found your video. I recently purchased the same app and installed it on my iPad. I purchased an iPad mic and built a housing for it to keep out external noise. Really happy with the results. Don’t think I need to buy a pro machine. Thanks for sharing this.
The problem with the app is having to be totally quiet. To make any adjustments you will have to do away from the app and then setup again to see your result. On the TG you can make adjustments on the fly and see instantly the result of your actions. So it depends on what you are doing. Just checking your watches then its fine. To work on them I could not recommend.
on the weishi, What are those smaller sized 2nd line values in each column? (small white font -2, -4, -1, -2 etc.) The ones below the 1st line, (highlighted, larger font) actual values?
Excellent app for home user. A normal person just want to adjust daily precioso and for further maintenance a watchmaker is the best option. So for basic reading and adjustment is ok . And good enough.
I have one question ... how well calibrated is the Weishi? I don't know how good its performance is, especially as it compares to the 10x more expensive swiss timing alternatives.
Silly question but , Does it work on a quartz watch as the beat is 3600 and hour ( yes I know it's much faster like 262k in a bulova ) but the tick is 1hz .
Danny I’m not aware of the clones. To my knowledge they are all Chinese. I see others with exactly the same machine only have a different brand on the cover . Expect to pay 100-135
As a novice who's recently gotten interested in this, I found an app called Clock Tuner (it's free) for Android that does this. I was able to get a pretty good reading from just the mic on the phone (Pixel 3 XL) in a dead silent environment by setting the watch directly over the mic on the phone. I have no way to tell if the reading was accurate or not because I don't have other tools, but it appeared to be working. I let it read my Tevise T801A for a few minutes and it came out with +35s a day. Again, no way to verify the results, but judging by the performance of the watch since I've owned it, it seemed to be reasonably close.
Chew Magna the rule of thumb to look for is nice parallel lines first of all. This means there is no issue one side of the balance (tick or tock) then the amplitude and s/d are important. It’s all just to see the health. The apps are good for a quick check and to ascertain if your watch is running poor, if it is then it’s telling you to get it serviced.
This imo was simply a test of the microphones, not the timegraphers. The software math to churn the numbers is simple, the key is hearing the watch. BTW, loved the Satie!
Well yes but equally you will never been the equipment with an app because you can’t work on the watch to regulate on the app whereas the machine I can put it in the holder and make as much background noise as I like. The app is only good if you have no intention to work on a watch and regulate in real time.
Great vid! Thanks for making it. I used the app to get an idea on how accurate my skx009 is after our toddler pulled my watchbox from the nightstand. It fell around 3 feet onto the carpeted floor. The app measure an average of 16.8s/day average timing it for 3 minutes. Problem is that I don't have a base measurement from the app before it fell. In addition I find it strange that when I measure it manually using the computer date time, in a 24h period, I got +42s/day (24h) ??? I'll manually measurement again to see if I made a mistake.
I use the Android "Watch Accuracy Meter" which works well. For best results I take the back case cover off so the phone mic gets an uninterrupted listen to the movement. I have got NH35s to about 1 to 2 seconds a day and they then live up to that in real world wearing.
The thing is that any instrument that measures high frequencies does so by using the frequency of a quartz crystal oscillator as it's reference frequency which in a perfect world is 32,768Hz, but there is a lot of difference between good and poor quality quartz oscillators, a cheap oscillator isn't temperature compensated and the frequency drifts as the temperature of the circuitry and oscillator change. A timegrapher is specifically designed and built to measure high frequencies with high accuracy and precision and so should have a good temperature compensated oscillator, phones and regular computers don't usually have a very high quality temperature compensated oscillator because it's not really necessary for the normal functions a phone or computer is built to do.
I just use my phone mic/app and place my watch on the table next to it - had some great results (adjusting beat error/rate) - small manual blower to clean dust away.
Hello. I have Omega Speedmaster, very old watch, automatic, and I have this part for regulating, but there is no + and - . It doesn say where is + and where s -. Can this part be adjustet at all? Does every automatic have this part for adjusting it? Now, the watch is in hurry 6 minutes every day.
hello i like your work Could you please make a video using the weishi in a floor pendulum clock?Since I want to buy a weishi machine But I don't know if it will help me to regulate this type of clocks Best regards
This is an excellent comparison video between the 2 different processes. I only have 1 question. Microphones, like speakers have a magnet. Are there any concerns of magnetizing the movement by placing the magnet/microphone so close to the watch?
Good question but I dont really think it would have much effect. the Machine has a piezo microphone so no magnet there and as for a phone mic I would doubt that would have enough power to transfer to the watch itself. Still this is an interesting question.
Another great video. Thanks. I know it's an old threat but I only found your YT channel now and I'm just now starting to watch your videos. Have you done a comparison between the Weichi 1000 and a software timegrapher? Thanks
If app says battery error 1 ms 1 s/d should that not be ok or does it cause wear or why if only second out need to fix beat error. If fixed would it affect the s/d
If you had a phone with a 4 pin jack (or sacrifice a pair of wired buds) I imagine you could use a piezo disk between the bottom two sleeve pins (or replace the mic with the disk). The piezo would act as a vibration transducer so ambient noises wouldnt affect it, though trucks, and kids running around might... It might also need a little pre-amp to boost the raw disk output. I dont need one on my LG G6 when I use disks as a contact mic for other projects (might try it for this if I find an android app for free to try, otherwise im just going to program a spare arduino, but Im also timing a long case clock movement so... yeah lol), but if the impedances are too far out little noises will be lost. That being said they can be ridiculously amazing at picking up strange mechanical sounds. Plus, with a pre-amp you could probably incorporate a notch filter so just the ticking makes it through....but thats more voodoo than I care to wrap my brain around for a simple project ATM.... Anyhoo, good stuff, mate!
Thanks for the comparison. However, don't you get an unreliable result on the app because the smartphone's microphone picks up the timegrapher's audible signal?
Help please! Bought used tudor black bay 58 m79030n caliber MT5402 Time graph Test period 4s Lift Angle 49 degrees Wind 30 times let it run for 1 hour Then I tested it on timegrapher amplitude was under 250 so I wind it 20 more times then my readings were Dial up +1s/d Amplitude 262° Beat error 0. 3ms Parameters 28800 Vertical crown left -11s/d amplitude 189° bet error 0.3ms Parameters 28800 Vertical crown right -7s/d Amplitude 197° Beat error 0. Oms Parameters 28800 Dial face down -1s/d Amplitude 255° Beat error 0.2ms Parameters 28800 Does the watch need to be repaired? Should I return it? Thank you
I don’t know the movement but I’d say it’s okay. Still very accurate. You would normally see poor readings low amplitude or a fuzzy trace if something was really wrong with it
with the app & mic. I have a Pelican case of medium size with pull & Pluck foam Lined. I could see resting the phone and watch in the case for testing. As to not influence or interfere with Data,
The problem you have with any other method is that if you were actually working on a watch the app is not practical. You cannot move the stud or regulator whilst the microphone was in place and get a real time result. The app would only ever be useful for someone to try to see roughly how good their watch is running. In any situation the timegrapher is the clear winner
'Watch accuracy meter' app works well. The trend display is useful. Hold the phone mic. against the crystal. Also remove nearby electromagnetic interference ie. tablet....
I plan to put a watch and a microphone into a cardboard box and close it up. Then, I'll connect the microphone output to one of my oscilloscopes. There, I can look at the tick and the tock and compare the time duration of the two. It should also be possible to see the time required for one tick-tock cycle or for ten, even. I only need to know if all watches complete the same number of cycles in a day and what that number is. Then, I can calculate what the duration of a cycle should be and compare it to what I see on the oscilloscope. (You might have guessed by now that I'm an old electronics technician, not a watchmaker. But I love to hear the old Westclox, dollar, wind-up pocket watches tick.) What do you think? Will it work? I think so, as long as the oscilloscope is calibrated correctly. For example if one tick-tock = 1second, then one tick or one tock should measure 500 milliseconds on the scope. I should be able to measure them both on my screen to see if they are equal. Amplitude can be measured closely enough by observing the movement of a mark on the balance wheel.
With the watch app use a powered condenser microphone the kind with a suction cup that was used to pick up phone calls use a splitter on the headphones and plug that mic in and stick it on the back works great. Not a timegrapher but it something.
Hello and thank you so much for this video and your others as well! Do you know that it is the 'app' version that is incorrect? Or is this only an assumption that the timeograph will be accurate and the app incorrect? I understand the more expensive instrument will probably be better... but do we know this as a fact? Perhaps neither are correct? Sorry just my need to be certain on such experiments Cheers Dan
The machine is widely used by hobbyists an pro's alike and is its using a piezo mic it can hear better and the algorithm can plot the graph. The machine does not always get it right depending on what is going on in the movement as it cant always determine if the beat is very irregular. All I can say is the app would be okay to check your watches at home in a silent room to determine if its running ok or needs a service. To work on watches as I do you could not practically use an app to regulate a watch insitu.
There is no such thing. Manufacturers of movements will publish on their sites the range of accuracy but they are far and wide to cover any eventualities. Reality movements can be tweaked to further improve accuracy.
I wonder if you could somehow connect the Timegrapher microphone to the smartphone. That way you could exactly compare the software... Because if the software in the app is good, making a metal microphone clamp with a jack connector would be very cheap (e.g. for China manufacturers). Maybe something similar to a piezo pickup for acustic guitars, they literally cost like 2$.
The plug on the TG is a 4 pin plug from memory. To go to all that trouble you might as well buy a TG anyway. Not sure you can buy the mic and holder as a single unit. If you want to service your own watches as I do you can only really use a machine.
I didn't see any standards organization certification for either the device or the app. So, how do you know that the device is the correct one? The video clearly shows that you think that the device is the standard - fair enough. But why?
Well in theory we don’t but the fact that 1000s of people use them from hobbyist to professional is good enough. It’s basically an algorithm that is just counting the ticks and tocks and calculating the readings based on that. Perhaps the app uses the same algorithm but the machine is purpose build with a piezo microphone with a holder so you can work on the watch real time and see the results. One of my recent videos was showing how to regulate a watch with a timegrapher. You would never be able to do that with the app, it picks up too much noise for a start. Accuracy of your watch can be checked by using the atomic clock on your phone .
@@MyRetroWatches Yeah, I understand. We do come to trust things simply because we are used to them. But, really, it's not like that thing is made by Tektronix or anything... ...I wonder if anyone's really checked?
Well that is open to interpretation. Higher end watches are made to finer tolerances and therefore should suffer less deviation . It is more about amplitude and the trace in the screen being erratic which would indicate the watch is not running well.
If the app measures consistently, I think it’s a decent tool to regulate your own watch.
4 роки тому
I regulated my omega using tickoprint app , was doing 155 sec / day and now it says 45/50 seconds per day. I tested the watch and it's spot on. I can go lower but for a 60 year old watch 50 seconds a day is decent.
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Thanks for the wonderful video, and a huge thanks for not ruining it with crappy background music.
I don't know why some people are compelled to add annoying background music throughout their videos.
I have the Weichi 1000 and find it invaluable to checking on the health of my watches, which are almost exclusively mechanical and automatic pieces. One thing I would caution the new user of this machine against is falling into the trap of becoming obsessed with chasing "perfect" flat line readings from their watches. In reality watch beat rates, amplitudes and beat errors vary throughout the day due to watch position, temp, shocks etc. Over the course of a day these factors may even out to offer a watch which, by the day, is very accurate, but by snap measurement, might seem quite a long way out of spec. It's worth noting that COSC themselves certify "Chronometers" by checking these readings at five different positions and three different ambient temperatures. Probably the most significant figure this testing reveals is the "Delta" (deviation in beat rates across the five positions).
Good advice sir.
I agree. A watch accuracy is the result of errors compensations over the day and the “right” time is an average of the variations that a watch normally has in normal use. Spot measurement are a snap picture and do not worth becoming obsessed with.
Great video and really helpful and informative. The app (which I’ve just bought) now states the best results are from placing the headset mic against the crown of the watch. I’ve done this using blutack to hold the mic secure against the crown. The results are far more reliable and far less susceptible to outside interference. I’d love to see a rematch using this method. I’m really happy with the results of the app and have already regulated some of my watches with great success.
This is an excellent introduction to what a time Grapher is, and what it does. Many thanks 😀
I have used an app called 'Watch Accuracy Meter' on an android phone - it seems to work well. I don't use the external mic. I just hold the phone upright, with the phone's mic sitting on the watch back or face. It gives a great trace line, and I have adjusted a couple of watches that now have a very low beat error and are accurate to within a few seconds a day.
Thanks for the video.
Sounds good, however, I find significant difference between on edge vs face up. On edge, there is a difference between crown up or crown down (where the watch resides much of the time while wearing it). I see most time grapher tests done with the face up. My watch is face up if my hand is on a table, but crown down while standing, on edge crown forward while reading a book. Each of these likely have a different s/d. My watch winder swings, (it's a feichongho) with the crown up. I suppose you need to live a week or two and check time gain or loss to get an accurate average for your life style.
Yes, it takes a number of adjustments to get a good 'average position' setting to get a good 'on wrist' accuracy. But the results have been good. 👍
I've been using it also. Works great. I can even check a watch at a store on the spot. Lots of fun. I used it to regulate an SW 200. Went from +29s/d to +1s/d.
I use too and goes nices 😅
I use it too it works great I've checked it against a timegrapher in a horologists workshop. With my Breitling it even shows the amplitude with the correct lift angle entered into the settings, with my Planet Ocean coaxial 8900 the amplitude/lift angle function doesn't work but it still shows the correct beat error and rate.
This is the most relaxating video of my life.
I was playing around with an Android app, using the same microphone as you show. I found I got a much cleaner trace by sitting the watch, dial down, on top of the microphone. Better still setting the microphone into a slot in a wooden block, basically the firmer the mic was held the cleaner the trace.
The major difference between the timegrapher and the app is the way in which the microphone is used to pick up sound from the watch. The microphone used by the app was just laid on the watch. Had the microphone been more firmly attached with some form of spring clip and the sensitivity adjusted, I feel the app would have given almost exactly the same information. Certainly from an electronics point of view, the two devices are identical. The only difference is the way in which the microphone is attached to the watch case. If you are good enough mechanically to be adjusting watches, then knocking up a decent clamp to hold a phone microphone securely against a watch case will be a trivial exercise.
💯 spot on. I use a spring clamp to hold a dedicated mic firmly under my watches. I also place both watch & mic in a small soundproof container stuffed with small cloth (my mic is super sensitive so I'm just trying to limit sound pollution).
When used correctly, the app is exactly as accurate as a dedicated device. If not more accurater 😅
I bought a Weishi 1900 this summer to regulate my microbrand watches, and my first try was on a cheap homage based on an NH35. It now runs at -1.5s/day with a near-zero beat error. Glad of the investment! 👍
Very nice!
For the price difference, I say the app is doing a pretty decent job as is. I can see you have the noise cancelling on, which I think might be messing up with the apps "listening" as it uses algorithms to substract what it thinks is "noise" from what it thinks is "sound". In a very quiet environment there won't be any noise to substract, so it may be just messing up with the quality of the sound while trying to do it's thing. What I would do, in addition to providing a silent environment, is to put the watch in a small styrofoam box (a very good sound insulator) and tape the microphone on it firmly, preferably with the back cover open. This will be the ideal "listening" environment for the app and I am sure it will produce much accurate results.
There is always mic noise from the preamp even in a soundless environment
Outstanding video.I have to go with the AMZWATCH, especially with that green dial as my favorite
I just got the app and after a few tries I got some fairly accurate readings. (I checked with tha app, then timed the watch for 12 hours in the same position) They ended up very close. I ended up tweaking the sensitivity and noise cancelling, AND took the back of the watch off. Then I rubber-banded the watch OVER the mic on a watch pillow. This deadened other sounds except the balance. If the mic was as close to the balance as possible I got nice lines and good readings. Yes harder to use than a real watchgrapher, but still able to get good results. Thanks for the review (months too late...)
Thats great. If you are getting good results from the app then fantastic. for me not so positive. I think its good for checking but for real time use on a service its not practical. I will have a watch on the timegrapher with the back off making adjustments and seeing the results of those adjustments real time. The app serves a purpose but ultimately in my opinion the machine is the only viable solution if you are working on movements.
This video and the app just saved me $168.00. Thank you!
Good video. Gave me a lot of data on the data that the Weishi Timegrapher displays. And saved me a few dollars (since I was considering buying an app). Keep up the great videos!
Mike, the info you shared on how to use and read on the timegrapher has proven to me that I probably should invest in one. Thank you for your time and effort! Your explanation is very clear on how to utilize both instruments. Mr D..U.S.A.
Dennis Allport thank you so much for your comment as ones like these makeshifts effort to make these videos worth it.
The Weishi 1000 is a worthy investment.
Stay tuned as a how to regulate video will be coming very soon
I learned a lot from that video. The difference between the 1000 and the phone app. If I was going to land on the moon in a calculated spot. I would use the 1000, If I wanted to get close, I would use the app :) Subscribed ! because I'm all about comparison testing. Thank you sir
I'm a year late, having just joined the watch collection gang! Excellent test. I'm involved in electronic engineering and resonance equipment such as that used in CT scanning but for industrial use. You might have gotten some of the anomalies of the amplitude you noticed due to feedback between the mikes and (more likely)interference within the headphones, as even good quality buds are not really of good quality. İf you do the test separately, and don't use the headphones, put the watch close to the phone microphone directly and put the phone and watch on a soft towel or similar to reduce external micro vibrations you might find that the app can give you a more accurate reading. I've just subscribed, looking forward to seeing your other videos. 👍
Thank you for your insight. I would hope others will read your comment. For me as I have a timegrapher machine the app will never be used.
@@MyRetroWatches shame as it'd be goo to see the improvements using different techniques as well as improvements in the app.
Even grab a cheap Android phone and test a few of the free apps.
(I've tried a few and they look good but nothing to compare to)
But it'll take someone with a good machine to compare with to give meaningful results.
Replying another year further along from this comment. I used a different Android app but used this technique of placing the watch near the phone microphone on a firm but soft surface. No time grapher to compare to but the results were consistent when repeated and against the general known accuracy from long term observation.
Thanks for the video Mike!
Informative indeed. I have been using a free Android timegraph app which works much like the app you tested in this video. As you pointed out the thing can at least give one an idea of the gain or loss of time and then one can go to trial and error tweaking the timing in the watch. I think I'm going to fork over the money for a Weishi timegrapher instead. I'm not a professional watch repairman but I'm a long retired computer programmer in need of more things with which to tinker. Thanks for the video.
Apples to pears, never heard that before. It's always been apples to oranges 😁
Thanks for the video
For an app costing about 1/100 of the timegraph machine, I say it was really good.
You’ll find betty readings when the back cover of the watch is removed. I did so and the app was really accurate.
I do home repairs for my watch collection and it is not reasonable to buy a thousand dollar device where I can get to fairly same readings with 12 dollars!
Okay so I did a follow up video to this which perhaps you should also see.
Your costing is off too. The timegrapher cost £120 and the app at the time was near £20 from memory.
The app was never going to beat the machine anyway as if you work on watches like I do you could never use the app in real time and make adjustments. Equally you can’t check it in other positions .
Thanks for the video and your time mate.
Great video and I’ll be looking at the app just to try it out but ultimately I’d love the actual timegrapher and learned a lot from this video. Thank you for posting.
I love how you chose a piano piece with a fluctuating tempo.
Thank you for this usefull comparative test. More than 160 views in just a few minutes tells how hungry we are about seeing your videos. In this particular one I think the app could be used to have an idea of the daily rate of a watch, but if you try to set the BE using it you may end disadjusting it!
Agustin Aguilar thanks I’m happy you enjoyed this one , took a bit of editing !
Thing with timegraphers is really you need a good wind in the mainspring otherwise you can get false readings.
The app has its place and what would be interesting is to do free app vs paid app and see what difference there is.
Theirs a free app available for (Android) "watch accuracy meter" which works great once you figure out how to use it properly. Key is to keep the mic hole firmly up against the case back. Doesn't work as well on the crystal. You get a really strong trace with this app and regulating the watch is very effective.
great video thank you for taking the time to share!! i really want to learn how to regulate them myself but am hesitant on taking that step. at least now I know with certainty which tool to buy on my journey thank you for that! you have some really cool watches too they were great!!
I wrap the watch and app microphone in a towel. It helps no end.
With the app, try putting the watch into makeshift sound deadening pouch.... something lined with foam. That would help with reverberations and ambient sounds.
In addition, A dedicated lavalier microphone would work well.
You'd be better off putting it in a small sealed box of some kind.
Strap mic to watch, put combo in box with dampening material, put box to another box with more dampening material, isolate box from table surface etc.
App accuracy is depending on how good of mic and how quiet of room, then choose version 3 option. If room is noisy, the only option that still can work is version 1 which not quite accurate but the easiest to work with. I use food container and close the lip to make it quietest as possible and also wind the watch to max.
Thank you Mike, this really is a useful comparison. My ‘takeaway’ was that the app would be interesting as an indication if your watch might need a service but if you have any plan to do some work inside then the timegrapher is the one to use. I did wonder if a better mic and physical coupling to the watch case would give better results for the app but in the end there is a limit to what is worthwhile given how affordable the Weishi is. Great watches by the way and that Longines is certainly going well for its age!
Morgan David thank you sir. I did do a continuation to this video where I used my lapel mic (only external mic I have) might be worth checking that video out.
No app will beat the Weishi as they are not really compatible . The idea was to see just how good or bad and app performs against a known and reliable purpose built machine .
Thanks Mike .Hay never say you talk to much.. I like to listen and learn and if your not talking I am not learning .
Thank you.
Thanks a million, it was helpful ,especially your intestng app
I have a couple of free apps from the playstore for android phones. I bluetack the phone headset to the watch face listen to the watch and threy work great. The only setting that is missing from the actual timegrapher machine is the amplitude. All other settings are available. 👍😁⌚
I look forward to seeing your next video on how to regulate a watch ! Thank again
This video was so useful by the way!... that app is not so bad actually... I wonder if you could improve its result (by increasing the sensitivity or by opening the case back, etc...)
Jerome Jeronimo thanks for your comments . Regulating vid will be soon I think as it not so hard to film and for once might be a shorter video...
Yes perhaps improvement could be made but the sensitivity is just that too much and it gets worse. I have tried before with the caseback off and it didn’t really read any better.
If you watch the on screen layer in the video it hardly ever goes red on “sound samples” meaning it’s hearing fine and no background noise interfering .
If you see near the start when I am talking about the app while it’s running you see it go read each time I speak..
Thanks for your reply!
Actually because of your well made and super friendly video I decided to finally purchase all the remaining tools I will need to restore o(r mess with) some watches... it has been years since I hope to do it... I found your website very good for people like me... I purchased a few items with the links you put. Cheers
Used one in late 1970's it printed dots on paper roll but the actual print out looked just like timegrapher screen it was used at work to check lorry tachograph clocks but used loads for checking and setting watches
I’ve got problems with nh35 movement watch I just bought so hoping the app might guide me with some information I can’t buy the timegrapher it’s to expensive
Parabéns pelo vídeo, especialmente o ensaio entre os dados do timegrah e aap.
I have a strong preference for 'leave it running for a day - on your wrist - and see how the accuracy is. I get very different errors between vertical and horizontal, as well as face up and face down.... so what matters is how it averages over a day of wear.
Thank you so much for sharing. I feel much inspired and have started a list of tools based on your advice. Books first I think!
Best way to learn is by doing!
Hi Mike. Thanks so much for your high quality post. Informative and you are very well spoken. Interesting collection too. Thanks.
Marcus Mcewan thank you 🙏🏻
Hi thanks for your efforts. Looks like you have not increased the sensitivity of the app microphone. I have used a similar app and it need to be increased to approx 40 /50 to read properly.
Thank you for your video! Just ordered a Weichi 1000. One of the reasons besides of your great review - the phone app that I use doesn't support all beat rates.
Thanks, you wont regret it. The are a great tool and well worth the money.
Your app is picking up the piano music, which explains the snowstorm-like plots. 😊
But seriously, apps can be very good if you use a proper microphone, or if you can adapt and use the Weishi pickup mic. I use a piezoelectric sensor as the mic and it works very well with my phone app, and it's not sensitive to the background noise.
I'll check it out!
Thanks Mike. Stumbled on your channel and I’ll be subscribing for sure.
Thank you
Great video. I was wondering this exact thing not long ago.
My Orient Kamasu has an F6922 movement, and when i wear it, it gains about +120 seconds a day, but if i dont wear it it loses -60 seconds a day. I have tried regulating it, but it seems that the ammount of barrel wound is what affects its speed. Why is this? Could it be that it has Beat Error? Thank you in advance
Noticed a video the other night.the shirt you were wearing said "a watchmakers life.loved it
Shameless plug. It is available in my merch store in YT
Great video and info keep up the great job
Glad I found your video. I recently purchased the same app and installed it on my iPad. I purchased an iPad mic and built a housing for it to keep out external noise. Really happy with the results. Don’t think I need to buy a pro machine. Thanks for sharing this.
The problem with the app is having to be totally quiet. To make any adjustments you will have to do away from the app and then setup again to see your result. On the TG you can make adjustments on the fly and see instantly the result of your actions. So it depends on what you are doing. Just checking your watches then its fine. To work on them I could not recommend.
Just curious, will the watch be magnetised by the mic since it’s so closely placed on the movement?
What would be the test results if you tested without the back lid placing the mic directly on the movement?
Great video Mike, very enjoyable :-)
My Mate VINCE thank you Vince glad you got something from it. Looking forward to your future videos
on the weishi,
What are those smaller sized 2nd line values in each column? (small white font -2, -4, -1, -2 etc.)
The ones below the 1st line, (highlighted, larger font) actual values?
They are the + /- seconds its loosing between readings. By default its set to 12 seconds per interval to display a calculation .
@@MyRetroWatches 😎 Cool, ahh wrong choice of words. Thanks! was wondering what they were.
@@MyRetroWatches Does that ± value change if the test period was 12 seconds vs. 60 second? ie. the Timegrapher calculation overloaded
thank you were can i get where can i get parts for watches
I’m going with the Timegrapher. 👍🏼
Watches are so interesting. I like your videos.
Excellent app for home user. A normal person just want to adjust daily precioso and for further maintenance a watchmaker is the best option. So for basic reading and adjustment is ok . And good enough.
Obrigado pelas importantes informações!
Já me inscrevi no seu canal!
Estarei acompanhando aqui de Recife-PE- Brasil.
Grande abraço!!!
I have one question ... how well calibrated is the Weishi? I don't know how good its performance is, especially as it compares to the 10x more expensive swiss timing alternatives.
Silly question but ,
Does it work on a quartz watch as the beat is 3600 and hour ( yes I know it's much faster like 262k in a bulova ) but the tick is 1hz .
No
Was the app picking up the ticking of the machine?
Thanks for the video, I'm just getting into watches. I'm curious to know if Weishi clones are worth considering or just save up for the original.
Danny I’m not aware of the clones. To my knowledge they are all Chinese. I see others with exactly the same machine only have a different brand on the cover .
Expect to pay 100-135
@@MyRetroWatches thank you very much.
Hi.
I have installed this app on my phone about 2 months ago and it is working well, but sometimes on some watches.
Morteza Saremi I’m glad it works for you. I think it’s okay for a quick check only.
As a novice who's recently gotten interested in this, I found an app called Clock Tuner (it's free) for Android that does this. I was able to get a pretty good reading from just the mic on the phone (Pixel 3 XL) in a dead silent environment by setting the watch directly over the mic on the phone. I have no way to tell if the reading was accurate or not because I don't have other tools, but it appeared to be working. I let it read my Tevise T801A for a few minutes and it came out with +35s a day. Again, no way to verify the results, but judging by the performance of the watch since I've owned it, it seemed to be reasonably close.
Chew Magna the rule of thumb to look for is nice parallel lines first of all. This means there is no issue one side of the balance (tick or tock) then the amplitude and s/d are important. It’s all just to see the health. The apps are good for a quick check and to ascertain if your watch is running poor, if it is then it’s telling you to get it serviced.
Set your watch exactly to time.gov check how many seconds fast or slow it is is running 24 hrs later.
Omg. Hard to see with phone not fixed and moved frecuently. Any how, a good explanation for a beginer as myself. Tks
This imo was simply a test of the microphones, not the timegraphers. The software math to churn the numbers is simple, the key is hearing the watch.
BTW, loved the Satie!
Well yes but equally you will never been the equipment with an app because you can’t work on the watch to regulate on the app whereas the machine I can put it in the holder and make as much background noise as I like.
The app is only good if you have no intention to work on a watch and regulate in real time.
Ps I did do a follow on video with a different mic.
Seriously thank for your introduced app, it worth for me
Gracias por este y otros videos tutoriales, aprendo en cada uno de ellos, a seguir adelante, un abrazo
thank you Sir.
Great vid! Thanks for making it. I used the app to get an idea on how accurate my skx009 is after our toddler pulled my watchbox from the nightstand. It fell around 3 feet onto the carpeted floor. The app measure an average of 16.8s/day average timing it for 3 minutes. Problem is that I don't have a base measurement from the app before it fell. In addition I find it strange that when I measure it manually using the computer date time, in a 24h period, I got +42s/day (24h) ??? I'll manually measurement again to see if I made a mistake.
Thanks. Interesting. What does the gradient on the graph mean?
Thank you dear sir very helpful video I am from India
I use the Android "Watch Accuracy Meter" which works well. For best results I take the back case cover off so the phone mic gets an uninterrupted listen to the movement. I have got NH35s to about 1 to 2 seconds a day and they then live up to that in real world wearing.
I use "clock tuner" app, cost about 3.5 usd... Work fine to adjust the s/d deviation and beat error. Just need to compare it with real timegraph.
The thing is that any instrument that measures high frequencies does so by using the frequency of a quartz crystal oscillator as it's reference frequency which in a perfect world is 32,768Hz, but there is a lot of difference between good and poor quality quartz oscillators, a cheap oscillator isn't temperature compensated and the frequency drifts as the temperature of the circuitry and oscillator change. A timegrapher is specifically designed and built to measure high frequencies with high accuracy and precision and so should have a good temperature compensated oscillator, phones and regular computers don't usually have a very high quality temperature compensated oscillator because it's not really necessary for the normal functions a phone or computer is built to do.
I just use my phone mic/app and place my watch on the table next to it - had some great results (adjusting beat error/rate) - small manual blower to clean dust away.
I wonder if the block of steel may interact with the magnet in the little microphone.
should go over the Help option on the phone app. Once dialed in IIt can be impressive.
Hello. I have Omega Speedmaster, very old watch, automatic, and I have this part for regulating, but there is no + and - . It doesn say where is + and where s -. Can this part be adjustet at all? Does every automatic have this part for adjusting it? Now, the watch is in hurry 6 minutes every day.
hello i like your work Could you please make a video using the weishi in a floor pendulum clock?Since I want to buy a weishi machine But I don't know if it will help me to regulate this type of clocks Best regards
I don’t own any clocks sorry. I’m sure if you ask in online forums people will be able to help
This is an excellent comparison video between the 2 different processes. I only have 1 question. Microphones, like speakers have a magnet. Are there any concerns of magnetizing the movement by placing the magnet/microphone so close to the watch?
Good question but I dont really think it would have much effect. the Machine has a piezo microphone so no magnet there and as for a phone mic I would doubt that would have enough power to transfer to the watch itself. Still this is an interesting question.
Another great video. Thanks.
I know it's an old threat but I only found your YT channel now and I'm just now starting to watch your videos.
Have you done a comparison between the Weichi 1000 and a software timegrapher?
Thanks
No sorry.
Weather Humidity temperature etc could effect changes in the working of a watch. Just as in an instrument like stringed and Wind instruments
If app says battery error 1 ms 1 s/d should that not be ok or does it cause wear or why if only second out need to fix beat error. If fixed would it affect the s/d
If you had a phone with a 4 pin jack (or sacrifice a pair of wired buds) I imagine you could use a piezo disk between the bottom two sleeve pins (or replace the mic with the disk). The piezo would act as a vibration transducer so ambient noises wouldnt affect it, though trucks, and kids running around might... It might also need a little pre-amp to boost the raw disk output. I dont need one on my LG G6 when I use disks as a contact mic for other projects (might try it for this if I find an android app for free to try, otherwise im just going to program a spare arduino, but Im also timing a long case clock movement so... yeah lol), but if the impedances are too far out little noises will be lost. That being said they can be ridiculously amazing at picking up strange mechanical sounds. Plus, with a pre-amp you could probably incorporate a notch filter so just the ticking makes it through....but thats more voodoo than I care to wrap my brain around for a simple project ATM....
Anyhoo, good stuff, mate!
Thanks for the comparison. However, don't you get an unreliable result on the app because the smartphone's microphone picks up the timegrapher's audible signal?
Help please!
Bought used tudor black bay 58 m79030n
caliber MT5402
Time graph
Test period 4s
Lift Angle 49 degrees
Wind 30 times let it run for 1 hour
Then I tested it on timegrapher amplitude was under 250 so I wind it 20 more times then my readings were
Dial up
+1s/d
Amplitude 262°
Beat error 0. 3ms
Parameters 28800
Vertical crown left
-11s/d
amplitude 189°
bet error 0.3ms
Parameters 28800
Vertical crown right
-7s/d
Amplitude 197°
Beat error 0. Oms
Parameters 28800
Dial face down
-1s/d
Amplitude 255°
Beat error 0.2ms
Parameters 28800
Does the watch need to be repaired?
Should I return it?
Thank you
I don’t know the movement but I’d say it’s okay. Still very accurate. You would normally see poor readings low amplitude or a fuzzy trace if something was really wrong with it
with the app & mic. I have a Pelican case of medium size with pull & Pluck foam Lined. I could see resting the phone and watch in the case for testing. As to not influence or interfere with Data,
The problem you have with any other method is that if you were actually working on a watch the app is not practical.
You cannot move the stud or regulator whilst the microphone was in place and get a real time result.
The app would only ever be useful for someone to try to see roughly how good their watch is running.
In any situation the timegrapher is the clear winner
'Watch accuracy meter' app works well. The trend display is useful. Hold the phone mic. against the crystal. Also remove nearby electromagnetic interference ie. tablet....
Cool Comparison...
Nice video ! Thanks 🙏🏽
I plan to put a watch and a microphone into a cardboard box and close it up. Then, I'll connect the microphone output to one of my oscilloscopes. There, I can look at the tick and the tock and compare the time duration of the two. It should also be possible to see the time required for one tick-tock cycle or for ten, even. I only need to know if all watches complete the same number of cycles in a day and what that number is. Then, I can calculate what the duration of a cycle should be and compare it to what I see on the oscilloscope. (You might have guessed by now that I'm an old electronics technician, not a watchmaker. But I love to hear the old Westclox, dollar, wind-up pocket watches tick.)
What do you think? Will it work? I think so, as long as the oscilloscope is calibrated correctly. For example if one tick-tock = 1second, then one tick or one tock should measure 500 milliseconds on the scope. I should be able to measure them both on my screen to see if they are equal. Amplitude can be measured closely enough by observing the movement of a mark on the balance wheel.
With the watch app use a powered condenser microphone the kind with a suction cup that was used to pick up phone calls use a splitter on the headphones and plug that mic in and stick it on the back works great. Not a timegrapher but it something.
Hello and thank you so much for this video and your others as well!
Do you know that it is the 'app' version that is incorrect? Or is this only an assumption that the timeograph will be accurate and the app incorrect?
I understand the more expensive instrument will probably be better... but do we know this as a fact? Perhaps neither are correct? Sorry just my need to be certain on such experiments
Cheers
Dan
The machine is widely used by hobbyists an pro's alike and is its using a piezo mic it can hear better and the algorithm can plot the graph. The machine does not always get it right depending on what is going on in the movement as it cant always determine if the beat is very irregular. All I can say is the app would be okay to check your watches at home in a silent room to determine if its running ok or needs a service. To work on watches as I do you could not practically use an app to regulate a watch insitu.
Where i can search database about every movement standart rate, beat error, amplitude?
There is no such thing. Manufacturers of movements will publish on their sites the range of accuracy but they are far and wide to cover any eventualities. Reality movements can be tweaked to further improve accuracy.
Thx for the answer 🙏🏻
I wonder if you could somehow connect the Timegrapher microphone to the smartphone. That way you could exactly compare the software... Because if the software in the app is good, making a metal microphone clamp with a jack connector would be very cheap (e.g. for China manufacturers). Maybe something similar to a piezo pickup for acustic guitars, they literally cost like 2$.
The plug on the TG is a 4 pin plug from memory. To go to all that trouble you might as well buy a TG anyway. Not sure you can buy the mic and holder as a single unit.
If you want to service your own watches as I do you can only really use a machine.
I didn't see any standards organization certification for either the device or the app. So, how do you know that the device is the correct one?
The video clearly shows that you think that the device is the standard - fair enough. But why?
Well in theory we don’t but the fact that 1000s of people use them from hobbyist to professional is good enough. It’s basically an algorithm that is just counting the ticks and tocks and calculating the readings based on that.
Perhaps the app uses the same algorithm but the machine is purpose build with a piezo microphone with a holder so you can work on the watch real time and see the results. One of my recent videos was showing how to regulate a watch with a timegrapher.
You would never be able to do that with the app, it picks up too much noise for a start.
Accuracy of your watch can be checked by using the atomic clock on your phone .
@@MyRetroWatches Yeah, I understand. We do come to trust things simply because we are used to them. But, really, it's not like that thing is made by Tektronix or anything...
...I wonder if anyone's really checked?
Good video Mike!
Awesome video! Thanks! How poorly does a watch have to be performing +/- secs/24 hrs. before you'd say it needs servicing?
Well that is open to interpretation. Higher end watches are made to finer tolerances and therefore should suffer less deviation .
It is more about amplitude and the trace in the screen being erratic which would indicate the watch is not running well.
@@MyRetroWatches Thanks!
If the app measures consistently, I think it’s a decent tool to regulate your own watch.
I regulated my omega using tickoprint app , was doing 155 sec / day and now it says 45/50 seconds per day. I tested the watch and it's spot on. I can go lower but for a 60 year old watch 50 seconds a day is decent.