After watching for 5 years I finally found one video that explains accuracy and COSC issue most simpler. Lastly the Sinn accuracy surprised me astonishingly and totally changed my concept of accuracy. A big thanks Marc for this great video and your academic knowledge is far more impressive than any other watch guys in you tube. Long live and teach us more. Once again thanks and love from Bangladesh.
Your videos are so much more informative and to the point without any drama, dogs, animation and meaningless adjectives to describe the watch. You deserve far more subs.
Marc truly is a smart man. I've learned a lot. The amazing thing is ; as a watch enthusiast, I didn't know I needed to know these things until Marc told me about them. 😂😉🤣
Mark, that was a fantastic video. This series of yours should be required watching for anyone trying to get into the world of watches. Thank you for doing it! Hector
I have an SEIKO SKX007 and it's makes -7 seconds per Day with heavy use, i go dancing and Mountainbiking 4 times a week and i am REALLY really amazed with this watch. Greetings from Costa Rica.
I have adjusted Seiko Presage 6L35 to within a couple of seconds per day. Very under rated brand still. I'd like to see a $500 Rolex that can keep up with a Seiko personally :)
Great stuff .Up until a few weeks ago I'd stopped wearing watches completely and had zero interest Then I decided to look into a new dive watch and entered a rabbit hole that dont ever want to leave and your videos are a massive part of that as take things to another level in detail .Still have nt made my main purchase but have bought 3 other watches in the meantime and the knowledge I 'm gaining is great and a lot of fun too .When you have guys like you ,just one more watch ,urban gentry and timeteller the love and enthusiasm comes thru to the viewer and now I'm in love with watches too .Priceless.
Thanks for a very informative video. My Vostoks run at about a minute fast or slow a week ,but I still love them and adjust them accordingly as we all do who have Mechanical watches?
Again with a great informative video, really appreciate for giving the knowledge in the simplest form for a lay man understanding. Thanks mark n Keep it up.
Thumbs up man awesome videos you put out I find myself getting lost in watching so many of them. The watch and learn series is awesome I’ve learned a ton from watching them. I wear a Seamaster 300m I wanted the Speedmaster but I wear mine day in and out running heavy equipment and the Speedmaster just had more than I need. Keep up the good work!
Just discovered your videos and loving them. I was looking around for information as I'm honoured that my wife just bought me an Omega Seamaster Chronograph for my 50th birthday. Although, I still love my Citizen Skyhawk and my Citizen Divers watch :-) P.S. as of 2020, Omega don't supply the certificate, but on their web site you can obtain the test information, which I must get round to doing.
Great video. Although it's a shame that chronometer settings don't hold over time. It is understandable since we are dealing with mechanical watches. But then it raises the question that do we need to spend extra for these chronometers to begin with as they will eventually lose the accuracy. And as mentioned even a regular watch can be serviced to chronometer standard.
What do you mean? You are spending extra for the supreme engineering, time spent and attention to detail. If you want value for money, just get a $10 digital Casio with chronograph, timer, perpetual calendar, calculator and a light that's almost bright enough to be used as a flashlight in the dark lol.
I'm starting to think of your titles as click-wait, instead of click-bait: unlike everyone else on youtube, you consistently under-sell and over-deliver. I kept seeing this and thinking, "I don't need to spend 23 minutes watching a video about how accurate chronometers are," but, as usual, your detailed description of the history and testing was fascinating beyond what the title promised.
I've never been lucky enough to have a Rolex, or any other that ran +\- 2 new or otherwise. Great video Marc, so thanks for making it. I appreciate it, and realize it's an old standard, but I switch so often it really doesn't matter, but I don't get worried about it until something is pretty far out of range.
I picked up a Certina Quartz Chronometer while on business in Europe. This is a fantastic time piece. I prefer quartz when I am working. Can you recommend a German quartz Chronometer? If any.
Hey Marc, first of all thank you for your expertise! I learned a lot from your vids. Nice that you mention at the end that it has'nt got to be a chronometer certified watch in terms of accuracy! I own a Sinn Aquis date with the Sellita SW 200-1. At the moment it runs +/- 1 sec per day! It's all about regulation ;-) Greetings from Germany
I have a vintage chrometer. It's a Vostok Volna 2809 Precision from the 1950s. It's a homage to the 1948 Zenith 135. How the Soviets got the design is shrouded in mystery. No paperwork but it still keeps within 5 seconds per day. I have a Seagull m171s which has the Triovis Precision adjustment system in the movement. This is the more robust system than the Etachron used by the Swiss. My Seagull keeps within 2 to 3 seconds per day. You could do a video on the Triovis and Etachron systems and their relative merits.
Great video very informative. I had a bad experience with a Rolex watch and I wanted to see what is wrong with those watches. I got a new Rolex date just 2019, it gains time every day. 13.5 seconds every 72 hours. In 3 months of wearing it without adjusting the time it gain 7 minutes. Worth it? I don't thinks so. I don't wear it anymore. I just cant trust an overvalue brand that cant keep time right.
My steinhart in the 5th position gains 6 sec day crown up is 3 sec a day wound once a day out of rotation. Worn it deviates between 3 to 6 per day occasionally plus 7. Regularly wearing it seems to hold better a accuracy. Now pretty regularly resting it between wearing the seconds seem to be reproduced very well. So even though not cosc standards I would say its reasonably accurate but highly precise since reproduced times are constant if I have that correct. Cosc as I see it is a repeatable standard for certification. I'm familiar with this methodology because we use standards like this in analytical chemistry on geologic samples showing how much of an element like mercury will come out of an environmental sample treated for stabilization prior to landfill. Per EPA standards TCLP We agitate a 20 gram sample for 16 hours in a water solution spiked with inorganic acids to 5.7 pH then the resultant tested solvent has to be below 5ppb Hg mercury or other levels for other substances before it can be land filled. This TCLP test toxic caracteristic leaching procedure is supposed to emulate rainfall for 16 hours through the landfill. 5.7 is the natural pH of rain water. Yes Virginia ALL rainfall is acidic due to carbonic acid in the atmosphere.
I have a chrono certificate from COSC but they didn't write any numbers on it. It came with the Tissot that says "Chronometer" on it, so I assume they certified it, but idk why the certificate would be blank.
Does the accuracy standard tend to successfully make the jump from the movement testing out in controlled lab conditions, to a finished, encased watch with face and hands, on a live, active end user?
I was never a Rolex fan, but found myself feeling a growing attraction to them throughout this video... then the Sinn came along and that attraction just all came justifiably crashing down. Very climactic.
Thanks for this video, Marc. Do automatic movements drift so many seconds in one direction like a quartz watch, or drift plus or minus depending on position?
I'd like to give some love to the humble ETA 2824-2. Maybe I've just had good luck, but every one I've owned (in Steinharts mostly) has been really accurate. Just measured my Ocean Black, which came in at +0.6s/d.
Marc, a question you might able to answer. Are all chronometer movements top movements. Top movements being decorated and better parts like shock protection (incabloc) and better hair spring (nivarox). And what do you think about omegas meta certified process.
My Christopher Ward Trident COSC chronometer (ETA 2836) started losing 8 seconds per day after I took it swimming for the first time. Very odd as it's less than six months old. It's back at CW at the moment under their 5 year movement warranty....
I bought a Ball engineer 2 skindiver, 2824-2 chronometer grade, decorated. Tritium glass tubes, sapphire protected bezel. Real good looking watch. I'm loving it. Got a deal on it too. $1,700. Also has an amazing bracelet.
Plus or minus x seconds per a given time period are not always additive; they can be subtractive. So a COSC mechanical movement could hold time to within a few seconds per month or per quarter or.....etc.
That 12 year old Rolex needs more than just a 'tweak' . When a mechanical watch gets to the 4-5 year mark....any mechanical watch, including Rolex...the lubricants in the movement are broken down and dried out. Don't be tempted to open up the back and hose it down with WD-40 either...yes watch owners have done that...even with Rolex. Srsly, don't do that. Once the lubricants are dry, the only thing that will bring the watch back is to have it fully serviced. Full movement service starts with having the movement fully disassembled. Next the parts are placed into a special cleaning solution and spun around in watch parts cleaning machine. The parts are dried and then reassembled, lubricated with special watch oils that cost $30 for a couple of millilitres and then regulated. The serviced movement is then cased, the old gaskets replaced and the case is tested for leaks. When dealing with Rolex it's best to have the watch sent back to an authorized Rolex service center. Only an authorized Rolex service center can obtain genuine parts if any are needed. Servicing a Rolex with non-Rolex parts will greatly diminish the value of the watch. None of this comes cheap. The average Rolex service is around $800 assuming that no new parts are needed outside of gaskets. Skipping the service will result in more than a watch that no longer keeps good time. Once the lubricants are dry, the parts in the movement will wear at an accelerated rate causing damage. Genuine Rolex replacement parts cost an astronomical amount. Not only does Rolex cost a lot to obtain, it costs a lot to maintain. It's like having a supermodel girlfriend on your wrist.
Hi MArc...can you use that equipment to check a spring drive accuracy? I was thinking the machine uses a microphone checking the escapement so it wouldnt work with the spring drive?
The 6r15d in my seiko runs perfect during the day at work it looses time to about 3-4 seconds at rest after work it gains what it lost going to about + 2-3/d
Excuse me, but you said these watches are chronometers. Then you called the tachometer/stop-watch function a 'chrono'. Why? How can you call two different things by the same name?
No problem :) You know each time you post a new video, I'm wandering which damn' watch(es) Mark will show us this time. Yeah, I'm insane :) Thank you for the time spent learning us some watch basis and more (in a comprehensible way) !
Two chronometers the captain had, One by Arnold that ran like mad, One by Kendal in a walnut case, Poor devoted creature with a hangdog face. Arnold always hurried with a crazed click-click Dancing over Greenwich like a lunatic, Kendal panted faithfully his watch-dog beat, Climbing out of Yesterday with sticky little feet. Arnold choked with appetite to wolf up time, Madly round the numerals his hands would climb, His cogs rushed over and his wheels ran miles, Dragging Captain Cook to the Sandwich Isles. But Kendal dawdled in the tombstoned past, With a sentimental prejudice to going fast, And he thought very often of a haberdasher’s door And a yellow-haired boy who would knock no more. All through the night-time, clock talked to clock, In the captain’s cabin, tock-tock-tock, One ticked fast and one ticked slow, And Time went over them a hundred years ago. by Kenneth Slessor, 1931.
After watching for 5 years I finally found one video that explains accuracy and COSC issue most simpler. Lastly the Sinn accuracy surprised me astonishingly and totally changed my concept of accuracy. A big thanks Marc for this great video and your academic knowledge is far more impressive than any other watch guys in you tube. Long live and teach us more. Once again thanks and love from Bangladesh.
Thanks so much for watching!
Your videos are so much more informative and to the point without any drama, dogs, animation and meaningless adjectives to describe the watch. You deserve far more subs.
We will get there, thank you!
I love your videos ! It is like having my own horology classes ! Thanks again !
Thanks for watching!
Somehow your language is very formal and at the same time you drop the exact words to give the right explanation 👍
Marc truly is a smart man. I've learned a lot. The amazing thing is ; as a watch enthusiast, I didn't know I needed to know these things until Marc told me about them. 😂😉🤣
Great video. Just enough technical info to explain things without getting into the weeds.
Thanks; I try to keep it light.
Mark, that was a fantastic video. This series of yours should be required watching for anyone trying to get into the world of watches. Thank you for doing it!
Hector
Haha, thank you!
I have an SEIKO SKX007 and it's makes -7 seconds per Day with heavy use, i go dancing and Mountainbiking 4 times a week and i am REALLY really amazed with this watch. Greetings from Costa Rica.
Pj Rive a legendary timepiece
I have adjusted Seiko Presage 6L35 to within a couple of seconds per day. Very under rated brand still. I'd like to see a $500 Rolex that can keep up with a Seiko personally :)
Another informative video. FYI, Certina has a quartz chronometer. I bought one for my father.
Great stuff .Up until a few weeks ago I'd stopped wearing watches completely and had zero interest
Then I decided to look into a new dive watch and entered a rabbit hole that dont ever want to leave and your videos are a massive part of that as take things to another level in detail .Still have nt made my main purchase but have bought 3 other watches in the meantime and the knowledge I 'm gaining is great and a lot of fun too .When you have guys like you ,just one more watch ,urban gentry and timeteller the love and enthusiasm comes thru to the viewer and now I'm in love with watches too .Priceless.
True2022 brilliant, you’ve picked the best reviewers, right there!
Thanks for a very informative video. My Vostoks run at about a minute fast or slow a week ,but I still love them and adjust them accordingly as we all do who have Mechanical watches?
great work on all these videos, helping me to get started with automatic watches. much love from germany
Thank you.
Again with a great informative video, really appreciate for giving the knowledge in the simplest form for a lay man understanding. Thanks mark n Keep it up.
thanks.
i had been wrong all this while. i thought chronometer = chronograph. Tks Marc! Now i know better.
Glad its cleared up now!
Thumbs up man awesome videos you put out I find myself getting lost in watching so many of them. The watch and learn series is awesome I’ve learned a ton from watching them. I wear a Seamaster 300m I wanted the Speedmaster but I wear mine day in and out running heavy equipment and the Speedmaster just had more than I need. Keep up the good work!
Thanks!
Just discovered your videos and loving them. I was looking around for information as I'm honoured that my wife just bought me an Omega Seamaster Chronograph for my 50th birthday. Although, I still love my Citizen Skyhawk and my Citizen Divers watch :-) P.S. as of 2020, Omega don't supply the certificate, but on their web site you can obtain the test information, which I must get round to doing.
Just discovered your channel and now a new subscriber.
Thank you very much for sharing your knowledge, passion and expertise on the subject.
Great video. Although it's a shame that chronometer settings don't hold over time. It is understandable since we are dealing with mechanical watches. But then it raises the question that do we need to spend extra for these chronometers to begin with as they will eventually lose the accuracy. And as mentioned even a regular watch can be serviced to chronometer standard.
What do you mean? You are spending extra for the supreme engineering, time spent and attention to detail.
If you want value for money, just get a $10 digital Casio with chronograph, timer, perpetual calendar, calculator and a light that's almost bright enough to be used as a flashlight in the dark lol.
I'm starting to think of your titles as click-wait, instead of click-bait: unlike everyone else on youtube, you consistently under-sell and over-deliver.
I kept seeing this and thinking, "I don't need to spend 23 minutes watching a video about how accurate chronometers are," but, as usual, your detailed description of the history and testing was fascinating beyond what the title promised.
Another great video. I really enjoy watching these. Keep up the good work!
Thanks!
I've never been lucky enough to have a Rolex, or any other that ran +\- 2 new or otherwise. Great video Marc, so thanks for making it. I appreciate it, and realize it's an old standard, but I switch so often it really doesn't matter, but I don't get worried about it until something is pretty far out of range.
Right!
This video is phenomenal. Thank you so much for making a video like this. It is so informative and I love show you show your own test in real time
Thanks for watching!
The Yachtmaster is the star of this show...Love it !
Excellent job as always, Mark! -GCR
Thank you sir!
Wow! The seiko monster orange! I badly need one :-( Thank you so much for your videos, all very informative!!
Great video Marc as usual
Thank you.
Another great video, I will never stop adoring that yachtmaster.
Thanks, me too.
Superb explanation on the scope of chronometers.
Thanks!
Why do i feel just a little smarter after watching this ? 😁 great video Marc..
Great side effect!
I just ordered the seiko solar SNE125 from you. Love the videos. Very informative.
I appreciate the business, thank you.
Highly informative review. Many thanks.
I picked up a Certina Quartz Chronometer while on business in Europe. This is a fantastic time piece. I prefer quartz when I am working. Can you recommend a German quartz Chronometer? If any.
Hey Marc,
first of all thank you for your expertise!
I learned a lot from your vids.
Nice that you mention at the end that it has'nt got to be a chronometer certified watch in terms of accuracy!
I own a Sinn Aquis date with the Sellita SW 200-1.
At the moment it runs +/- 1 sec per day!
It's all about regulation ;-)
Greetings from Germany
That's awesome, enjoy!
I have a vintage chrometer. It's a Vostok Volna 2809 Precision from the 1950s. It's a homage to the 1948 Zenith 135. How the Soviets got the design is shrouded in mystery. No paperwork but it still keeps within 5 seconds per day.
I have a Seagull m171s which has the Triovis Precision adjustment system in the movement. This is the more robust system than the Etachron used by the Swiss. My Seagull keeps within 2 to 3 seconds per day. You could do a video on the Triovis and Etachron systems and their relative merits.
Great series ... Really informative ! Many thanks...J
Thank you.
Dang, I love that Sinn!
Me too; it's a brick.
Yeah. cant beat 'shack' for time hack! 00, wow.
I just love how it keeps showing 0 sec/day AND no beat error whatsoever !!! Amazing !
It isn't running at all, that's why it hits 0 across the board
@@ХристоМартунковграфЛозенски that's actually because it isn't running at all. Watch the hands, no movement
An amazing video. Thanks for sharing.
Great video very informative. I had a bad experience with a Rolex watch and I wanted to see what is wrong with those watches. I got a new Rolex date just 2019, it gains time every day. 13.5 seconds every 72 hours. In 3 months of wearing it without adjusting the time it gain 7 minutes. Worth it? I don't thinks so. I don't wear it anymore. I just cant trust an overvalue brand that cant keep time right.
My steinhart in the 5th position gains 6 sec day crown up is 3 sec a day wound once a day out of rotation. Worn it deviates between 3 to 6 per day occasionally plus 7.
Regularly wearing it seems to hold better a accuracy.
Now pretty regularly resting it between wearing the seconds seem to be reproduced very well. So even though not cosc standards I would say its reasonably accurate but highly precise since reproduced times are constant if I have that correct.
Cosc as I see it is a repeatable standard for certification.
I'm familiar with this methodology because we use standards like this in analytical chemistry on geologic samples showing how much of an element like mercury will come out of an environmental sample treated for stabilization prior to landfill.
Per EPA standards TCLP
We agitate a 20 gram sample for 16 hours in a water solution spiked with inorganic acids to 5.7 pH then the resultant tested solvent has to be below 5ppb Hg mercury or other levels for other substances before it can be land filled. This TCLP test toxic caracteristic leaching procedure is supposed to emulate rainfall for 16 hours through the landfill.
5.7 is the natural pH of rain water.
Yes Virginia ALL rainfall is acidic due to carbonic acid in the atmosphere.
Rolex continues to surprise me.. I always wondered why they cost so, so much more than other similar pieces. It's becoming a clearer picture.. awesome
Fantastic pieces.
Fascinating
Great stuff thanks!
I have a chrono certificate from COSC but they didn't write any numbers on it. It came with the Tissot that says "Chronometer" on it, so I assume they certified it, but idk why the certificate would be blank.
great video mark as usual, i wish my static mechanics professor back in the day was as good as you, LOL
LOL; I had the same guy for 2 straight years. Statics, dynamics, vibe, . . .
Ii am an architect so no dynamics but still you seem to be lucky. professor wise lol
Thank you. Good explanation. Is it possible to adjust the quartz movement for accuracy?
Excellent Marc!
Thanks!
Thanks for the video! Very informative!
Glad you enjoyed.
Long Island Watch Definitely. Much appreciated!
Does the accuracy standard tend to successfully make the jump from the movement testing out in controlled lab conditions, to a finished, encased watch with face and hands, on a live, active end user?
I was never a Rolex fan, but found myself feeling a growing attraction to them throughout this video... then the Sinn came along and that attraction just all came justifiably crashing down. Very climactic.
Thank you for watching it.
Are you sure you can bring a Seiko movement to COSC? I think they only do the Swiss-made mechanisms.
Excellent. As are most of your videos!
Thank you!
Vert interesting. Thanks Mark.
Q: Why in the heck is the standard +6/-4 and not +5/-5?
My Longines automatic watch runs + 1-2 sec/ day without any kind of certifications :)
This man is a mix of Mr. Bean and Charlie Sheen
With a bit of Victor Mature too.
Thanks for this video, Marc. Do automatic movements drift so many seconds in one direction like a quartz watch, or drift plus or minus depending on position?
Great presentation and explanation!
I may have to invest in a chronometer when I am adding more mechanical pieces to my collection.
Thank you!
Is that Sinn at the end of the video a mechanical or a quartz? Can you even use that timegrapher on a quartz? Thanks.
It's mechanical. Valjoux 7750
great video very informative!!!
Appreciate you watching.
Great video!
Thank you for watching.
I'd like to give some love to the humble ETA 2824-2. Maybe I've just had good luck, but every one I've owned (in Steinharts mostly) has been really accurate. Just measured my Ocean Black, which came in at +0.6s/d.
interesting thanks never knew this me ..great info
Thanks for watching.
Marc, a question you might able to answer. Are all chronometer movements top movements. Top movements being decorated and better parts like shock protection (incabloc) and better hair spring (nivarox). And what do you think about omegas meta certified process.
Certina ds action diver quartz is cosc certified ( chronometer)
I guess I’m lucky. My Rolex 1570 gains a couple while wearing, loses a couple at night, and 6 months later it was spot on without setting or winding.
My Christopher Ward Trident COSC chronometer (ETA 2836) started losing 8 seconds per day after I took it swimming for the first time. Very odd as it's less than six months old. It's back at CW at the moment under their 5 year movement warranty....
I just checked my Lum Tec 600M I've owned it 15 days and it's gained +15 secs. So 1 second a day. That's pretty good for a $800 watch.
That's great for a $2000 watch!
My cheap guanqin gj16034 with miyota 8205 runs 4seconds slow every 24hour. I've only owned It 4days. I paid like 53$ on Ebay, free shipping.
Mark, what was the name of the last watch with perfect timing. I couldn't quite make you out on the name...
Marc? What was the third watch you put on the time grapher? Seems a very interesting company if they build such capable watches.
Sinn
wow. I would not have guessed that.
The watch isn't actually running
I bought a Ball engineer 2 skindiver, 2824-2 chronometer grade, decorated. Tritium glass tubes, sapphire protected bezel. Real good looking watch. I'm loving it. Got a deal on it too. $1,700. Also has an amazing bracelet.
My Tissot Seastar 1000 is running at -2/day. I'm so lucky.
What bout Certina? I heard they adjust their movements to chronometer accuracy but do not certify all of them.
Yep, Longines Hydroconquest Quartz movements are black-belt ... 7 jewel high quality ETA movements ...
don't mind my question, but when it is +12 sec does it mean the watch is running faster than it should have?
very informative
Glad you enjoyed.
Marc you guys need to cut a deal with Sinn! Watchbuys prices are outrageous
Contact Sinn on my behalf. I tried to talk to them at Basel but they only want to deal with WB.
How do they power the mechanical......one winding per 24hrs?? how many times......this is probably the greatest variable.
Plus or minus x seconds per a given time period are not always additive; they can be subtractive. So a COSC mechanical movement could hold time to within a few seconds per month or per quarter or.....etc.
Yes!
My new Islander ISL-03 (wearing about 2 wks now) is loosing 5 seconds a day. Should I be happy with that?
just buy quartz, it will blow the "Certified Chronometer" away
Also I've been perving over the Sinn 757 S UTC for ages now - think you might have just tipped me over.
Ha! Great piece.
What about the omega METAS master chronometer? In which category will fall?
Any plan to do a video on atomic syncing or even GPS watches? That's kind of the other technical extreme of accurate timekeeping.
I guess it's possible, though is it interesting? Not many people would get the circuitry (me included!)
I've been using Sakio quartz watches for years. And I hack once a week to the WWV or WWVH signals. Never out my more then 3 or 4 seconds!
That 12 year old Rolex needs more than just a 'tweak' . When a mechanical watch gets to the 4-5 year mark....any mechanical watch, including Rolex...the lubricants in the movement are broken down and dried out. Don't be tempted to open up the back and hose it down with WD-40 either...yes watch owners have done that...even with Rolex. Srsly, don't do that. Once the lubricants are dry, the only thing that will bring the watch back is to have it fully serviced. Full movement service starts with having the movement fully disassembled. Next the parts are placed into a special cleaning solution and spun around in watch parts cleaning machine. The parts are dried and then reassembled, lubricated with special watch oils that cost $30 for a couple of millilitres and then regulated. The serviced movement is then cased, the old gaskets replaced and the case is tested for leaks. When dealing with Rolex it's best to have the watch sent back to an authorized Rolex service center. Only an authorized Rolex service center can obtain genuine parts if any are needed. Servicing a Rolex with non-Rolex parts will greatly diminish the value of the watch. None of this comes cheap. The average Rolex service is around $800 assuming that no new parts are needed outside of gaskets. Skipping the service will result in more than a watch that no longer keeps good time. Once the lubricants are dry, the parts in the movement will wear at an accelerated rate causing damage. Genuine Rolex replacement parts cost an astronomical amount. Not only does Rolex cost a lot to obtain, it costs a lot to maintain. It's like having a supermodel girlfriend on your wrist.
My Certina DS Action Powermatic80 is running -3 secs a day.
If recent purchased rolex gives -3, -4sec per day
With no gaining. Do you think it should be serviced? It is one month old.
What is the brand and reference of the last watch with higher accuracy?
Hi MArc...can you use that equipment to check a spring drive accuracy? I was thinking the machine uses a microphone checking the escapement so it wouldnt work with the spring drive?
Superb.
Please how to reset 24h on edifice Casio watch ef 554
Thx Marc! Do you anticipate carrying any chronometers in the future?
I have in the past, so I wouldn't rule it out.
The 6r15d in my seiko runs perfect during the day at work it looses time to about 3-4 seconds at rest after work it gains what it lost going to about + 2-3/d
Excuse me, but you said these watches are chronometers. Then you called the tachometer/stop-watch function a 'chrono'. Why? How can you call two different things by the same name?
mark please review a seiko Irish coffee limited edition watch,tq
Two thumbs up !
Thanks Mark ! Very interesting video. But where is the wrist Check ??!!! :)
Sometimes I just forget!
No problem :) You know each time you post a new video, I'm wandering which damn' watch(es) Mark will show us this time. Yeah, I'm insane :)
Thank you for the time spent learning us some watch basis and more (in a comprehensible way) !
There is a thing ref engineers rule that will make sense? Cheers .
Two chronometers the captain had,
One by Arnold that ran like mad,
One by Kendal in a walnut case,
Poor devoted creature with a hangdog face.
Arnold always hurried with a crazed click-click
Dancing over Greenwich like a lunatic,
Kendal panted faithfully his watch-dog beat,
Climbing out of Yesterday with sticky little feet.
Arnold choked with appetite to wolf up time,
Madly round the numerals his hands would climb,
His cogs rushed over and his wheels ran miles,
Dragging Captain Cook to the Sandwich Isles.
But Kendal dawdled in the tombstoned past,
With a sentimental prejudice to going fast,
And he thought very often of a haberdasher’s door
And a yellow-haired boy who would knock no more.
All through the night-time, clock talked to clock,
In the captain’s cabin, tock-tock-tock,
One ticked fast and one ticked slow,
And Time went over them a hundred years ago.
by Kenneth Slessor, 1931.
You forgot to wind that watch at the very end. 0 across the board tends to happen when the watch isn't running at all