I bought a Seiko 5 SNK809, which I'm super happy with. I've always used cheap $12 watches until I decided I would like something nicer and started researching and learning. I just remembered that I work with a magnet which is used with a crane to lift heavy dies (up to 400 lbs) at my job. I'm thinking to myself "well shit..."
A good Watch & Learn episode would be to discuss the time grapher; its function and use but more specifically talking about "what good watch performance looks like". I think that would be a good topic. Thanks Mark.
As many have said, 2 years ago, this is a very helpful video. Thanks Marc. What might have been even more useful is if you explained HOW you used the unit. But for those who watch carefully, it is evident. It's important to note that when magnetizing, Marc placed the watch inside the "machine", then pushed the button and held it down for a few seconds...then RELEASED the button while the watch was still in the machine. This is important. When demagnetizing, do not release the button while the watch is inside the machine. Release the button only after the watch has been pulled out of , and drawn away from the machine, slowly.
Excellent video Marc. It's probably the one I've found most informative. Really sheds light on keeping your mechanical watches away from magnets. Nicely done. 👍
Mark, one of the features of your videos I like most is that you don't have an annoying intro :) This was very instructive again, thanks a bunch, I never knew how a demagnetizer works. Big thumbs up! Zs
Great information, thank you. So, approximately how far from a magnetic source like an alarm clock or let's say a Bluetooth speaker should the watch be? Sorry if the question is repeated, haven't read all the new comments on the thread below.
Fascinating. Question: if you keep you mechanical watch in a electric watch winder can this constant exposure to a magnetic field instill a magnetic in effect or inaccuracy in your watch. I have several watches (4) in a winder used occasionally. Have read criticisms about winders and some say unnecessarily stressing an movement. But in opposition a winder keeps lubricants from coagulating, ie less effective. Many thanks.
Thanks Marc, great video. Is it possible that a magnetized watch could run very slow? My Sumo used to run +3-5 S/d for some reason it had started running very slow -20-25s/d. I’m at a loss to understand. I take very good care of my watches?
Great video showing that magnetization does affect the accuracy, but could you give any insight on why? Such as, what internals are affected by the magnetization to cause the change in accuracy?
@@islandwatch No. The coils attract each other until they touch, this is what shortens the spring and increases the rate. The more coils that touch, the faster the rate.
Let's say you have a cheap-ish watch that runs -8s/day. Since magnets almost always speed the watch up a bit, would it be 'wise' to attempt a quick & dirty speed-up regulation with a small neodymium fridge magnet? You could bring it progressively closer to the watch for a couple seconds, measuring the effect each time using a fancy timegrapher or a smartphone app like WildSpectra. Better not to crack open the caseback if you don't have to.
Hi, Mark. I was reading the comments, because I am considering to buy a watch and I want it to keep the maximum accuracy. You said in a comment bellow that if we don't work in a specially electrified environment, we don't have to worry. But you also said that we have magnets in TV screens and even our laptop has magnets. ISO 6425 includes this protection up to 4800 A/m, which is not that much. I was thinking in a BALL, 80000 A/m, just to be in the safe side. I wonder if I am overreacting... Thanks in advence for your answer.
I am relatively new to this watch game and your channel has been a godsend for me. I also bought that Seiko military from you. I put it on a brown khaki nato and it is my beater for work. I work in construction and it has handled nicely so far.
Hey, I may be little late to the party but I still have a question. Firstly - great content, keep up the good work! I found especially helpful Your SNA411 bezel tutorial. I struggle to find any information on the internet of any examples on how strong 4800 A/m (60 gauss) magnet actually is. Do You have any real life examples on Your mind? Or the artificial one, just for the reference sake.
Hi Marc I saw other vids where they said to make sure the watch runs out of power and to a complete stop before you should use demagnetizer. I tried demagnitizing my watch while it was running. Is there a risk to damaging the watch that way?
Can magnetism also make a watch run very slow? I bought a sarb033 that ran +1/3 seconds for the first year and is (rather suddenly) losing more than a minute per day. Can't find a straight answer online on if magnetism always means a faster rate. Great video, Devin
Very informative. I did not know magnetism was cumulative. How much threat do you suppose a refrigerator is where one may have multiple magnets. I always think of that as I open my fridge door.
Hey Mark, I noticed u flashed a military Seiko style watch to begin the video.. I found this fitting because im a former Marine, and the month of May is kind of military-ish.. Meaning, Armed Forces Day is May 20th, and Memorial Day is May 29th.. Soooo my request to you is that you make a video of your top 5 military watches... If you really wanted to give me some love, use the Marathon USMC Pilot edition, I have that watch in my personal collection... Keep up the great vids, and Semper Fi
Hi everybody, I just bought a set of magnetic wristbands for my watches, and I just loved how light and comfortable are, much better than traditional bands. But I'm super scary about the damage they can induce to my automatic watches precision. Mainly I want to use them in my Seiko Sports collection. Any experience with these bands?
Hello Mark. What about quartz watches ? Do they magnetize? Can I use that demagnetizer machine for quartz watches? Thank you and I am sorry If I made some mistakes in my english.
I did this with a cheap demagnetizer. It was running fast 25 seconds a day, now is running slow 8 seconds a day. Should I introduce a magnet again slightly to try and balance it out?!
Great video!, thanks for sharing!, Question: what about winding devices? they are all moved by electric motors, and like any electric machine they produced magnetic fields, right? can those devices magnetized a watch? Thank you very much!
I own a Vostok and I was curious and held a rare earth magnet to it for about two seconds. Watch stopped and I had to tap it to get it going again which was very scary. Do you think this has caused permanent damage to the watch? I don't know if you're still reading these comments but I would appreciate it if you could help
Marc, this was a very informative video. I've always known about watches and magnetism. But to see it real time on on a timing machine really brings it home. Thank you for doing these great videos. Also I hope you enjoyed BaselWorld and that it worked the way you wanted. -Mark
I bought a Chinese automatic a few weeks ago and it's running about +24/day, sometimes around +14. Don't know if it's magnetized or it's just not very well made. But I like it nonetheless.
Hi Marc, I travel quite excessively and find myself in and out of airports constantly. With that being said, I can't imagine the metal detectors and Xray machines are good for the pieces as I'm passing through security. Is a demagnetizer something you would suggest someone to own, or is it something that you would just have done when the watch is serviced?
Hi Mark, what I’d really like to know is how do speaker amps and guitar pickups effect magnetism? I have a 100W amp and a 50W amp in my small bedroom, where I store some watches in a watch box by my bed. Also on the bedside table I would charge my iPhone and have the watch box near the charger. So really, what I’m asking is although the watches aren’t in direct contact with the magnet, how strong are the magnetic fields in this instance? I haven’t noticed any seconds skipping or clear signs of magnetism, but is it a good idea to always keep watches as far as possible from chargers and amps/pickups? Many thanks
So I just bought a Seiko watch and on their own website is said that it has Magnetic resistance of 4800 A/m. How is something like that measured and what do those units means? And is 4800 A/m your standard resistance on a watch that was just put there as random fact or?
Another great video and perfect timing I just demagnetized my Anonimo last night was running over a minute per 24hours. so far running slow 4 seconds in about 12 hours. I used Lepsi to check for the magnetism do you know if it's reliable or am I better off using a compass?
Sounds great! You did a great job. IMO, if the watch is timing well, why even check for mag? But a watchmaker, I believe, will almost always demag a watch just to rule it out. Its simple and free.
Hello. First, Thank you for your videos which are very interesting and helpful. I hope its alright, but I have a question about magnetizm I am using an app to find if the movement is magnetizm or not. But since the phone is very sensitive, it shows results, even on the TimeGrapher Microphone, whis is o.k, as all mics have a magnet. So, how do i know if the Mic is overmagnetize? When pointing at a watch, the needle will move, but how do i know if its too high? Is there a figure or number, in Gauss, which i can consider as "ok level", and only higher numbers are to be addressed as a problem? Thank you for your help and support. Gal
strange question. because parts are metal in watches and the parts are moving fluxing EM fields, can storing watches next to each other also cause fluctuations? Or is is just so small and negligible compared to the Earth's field?
What are the magnets that are strong enough to magnetize a watch? Can a hand bag magnet magnetize my watch when i use my hand that have the watch on to grab stuff inside my bag?
Timegrapher is confusion: Headliner indicates my watch at -3 yet the figure on the screen where the dots appear it says -5. Why aren't they the same? Is this telling me something I need to know?
I work for the government and a couple of days a week I have to use a walk through metal detector and also use a hand held metal detector. All of our detectors are made by Garrett. After watching this video, I contacted the company and asked if using either of these two metal detectors could magnetize a mechanical watch. They said no.
Amplitude is the angle the balance wheel is turning from stop to stop. Once the machine knows the lift angle (which we input), it can calculate the amplitude and beat error. These are all diagnostic numbers.
I'm a bit confused. The Rolex milgauss, a watch specifically advertised for being anti magnetic withstands a field up to 1.000 Gauss, according to the official rolex website. Omegas in-house movements such as the 8500 and 8900 found in their planet ocean's are claimed to be anti magnetic to a field up to 15.000 Gauss, and the selling point of watches is not even their magnetic resistance. Am I missing something, maybe the Rolex has a higher rating and I just couldn't find it anywhere?
Thank you for the video Mark! My question is this then: is it worth investing a bit more in a watch with magnetic field protection (I am looking at a Sinn for my next purchase) or just spend 20$ on a demagnetizer and demagnetize the watch every so often?
Depends on your environment. If you are in a normal environment, I wouldn't worry about it. If you work around high power machinery (high electrical current) then maybe it's a good idea to get an antii-magnetic watch.
Thanks for the video. Quick question. When you demagnetize the watch, should the watch be completely powered down and unwound before demagnetizing? Or does it not matter if it's completely powered down or powered and running when you demagnetize? I think I've seen most people wait till the watch is completely powered down before demagnetizing, but just wanted to see what your experience and thoughts were on the demagnetizing process. Thanks.
Great videos, probably the most informative and useful watch videos out there. I just made my first order ever (2 Bambinos) hopefully Canada customs doesn't hold on to them for too long.
It seems to me if magnetism caused the spring to contract it would be pushing less. It would be contacted by the magnetism but that force world not be helping the spring unwind, it would be resisting the unwinding. Perhaps the magnetism works in opposition and forces the spring a bit out making its natural tension higher. That would be consistent with running fast. The other way is illogical. Imho
I forgot to take off my Rolex and set it far away from one of my mig welders. I fired up a welder, drew a bead and knew immediately that I made a major mistake. Adios Rolie...well not really, but it started to run minutes fast. The very strong magnetic field due to the welder's current totally magnetized the watch. Fortunately, I was able to degauss it with an old Hewlett Packard vacuum tube ammeter which had a degaussing feature, that is, it was able to degauss the probe. The Rolex responded perfectly and went back on-time.
Looking forward to that one! It would also be interesting to know why there's never been a watch (or has there?) that's exposed the regulation via buttons on the case to allow you to adjust +/- 1s/day without having to manually crack the case open and touch the extremely sensitive armature.
My Miyota 8215 kept really good time but started losing about 15 minutes per day and would stop on my wrist after a few hours. If I hand wind it, it will run okay for a few hours. Then, it will lose about 15 minutes and eventually stop. I had my watch about 5" close to a 12" speaker magnet before this problem started. Was that enough to damage my watch? I held my watch close to a Silva compass, but the compass needle barely moved. It vibrated a little is all. I have ordered a demagnetizer. Does this sound like a magnetized watch to you, or could there be another problem? Thanks.
I'm wondering, could being too close to a microwave oven magnetize a watch? I know there is a magnetron in older ones. I ask this, because I recently purchased a Seiko turtle, and the first day, it was running 20 seconds fast. The following day, after having been close to my running microwave, it started running 30 seconds slow, and has not changed since.
I'm surprised you did not already have a timegrapher and had to go out a buy one. I've only been collecting automatic watches for two months and bought one a week ago. I can imagine a possible problem with customers of a jeweler knowing that a timegrapher was available to analyze the watch they were considering purchasing. If the readings were not perfect it would be harder to sell the watch. It would introduce a wild variable into the selling process.
Also, don't demonstrate it to your friends in the bar like I did. They could care less and it is beyond their comprehension. Try to find smarter friends - hard to do.
I have no need for one. I don't do repairs, I have a watchmaker for that. And anything I need to do, I don't need a timegrapher for. But now that I have one. . .
Mark!? Anybody!? My watch got SUPER magnetized by a stack of like 12 rare-earth magnets. I tried the blue demagnetizer machine to no avail. I am running like +10 mins per HOUR (not per day). I think even adjusting the regulator won't help. Does anybody know what I can do?
As far as I understand - it is far easier to magnetise a mechanical watch as the hairspring coils can stick together speeding up the watch considerably. It may be possible to damage a quartz watch but I think the magnetic field would have to be extremely strong and may therefore irreversible damage a quartz watches circuitry.
Ok, so when you use a compass as a diagnostic tool for magnetisation should there, ideally, be no response at all? Or is a faint respons normal (as a compass will react to non-magnetized ferrous metals anyway, won't it?)
Many watchmakers have told me that a magnetized watch can gain several hours (!) per day., and I really would like to see that effect. Could you please also show what happens when you try all that with the case-back opened.
I bought a Seiko 5 SNK809, which I'm super happy with. I've always used cheap $12 watches until I decided I would like something nicer and started researching and learning. I just remembered that I work with a magnet which is used with a crane to lift heavy dies (up to 400 lbs) at my job. I'm thinking to myself "well shit..."
A good Watch & Learn episode would be to discuss the time grapher; its function and use but more specifically talking about "what good watch performance looks like". I think that would be a good topic. Thanks Mark.
Yes, it would be! But we start here, and move up : )
As many have said, 2 years ago, this is a very helpful video. Thanks Marc. What might have been even more useful is if you explained HOW you used the unit. But for those who watch carefully, it is evident.
It's important to note that when magnetizing, Marc placed the watch inside the "machine", then pushed the button and held it down for a few seconds...then RELEASED the button while the watch was still in the machine. This is important.
When demagnetizing, do not release the button while the watch is inside the machine. Release the button only after the watch has been pulled out of , and drawn away from the machine, slowly.
Excellent video Marc. It's probably the one I've found most informative. Really sheds light on keeping your mechanical watches away from magnets. Nicely done. 👍
Mark, one of the features of your videos I like most is that you don't have an annoying intro :)
This was very instructive again, thanks a bunch, I never knew how a demagnetizer works. Big thumbs up!
Zs
LOL, thanks. No intro, as I cannot do one! I'm lucky I figure it out thus far.
Zsolto66 I agree with you on that. Some intros are way too long. and annoying!
"Hi, this is Mark from Long island watches". Classic. Great vid!
It's turning out to be quite a tag line.
Great information, thank you. So, approximately how far from a magnetic source like an alarm clock or let's say a Bluetooth speaker should the watch be? Sorry if the question is repeated, haven't read all the new comments on the thread below.
So what is a safe distance to put a watch next to a clock radio? cool video
Fascinating. Question: if you keep you mechanical watch in a electric watch winder can this constant exposure to a magnetic field instill a magnetic in effect or inaccuracy in your watch. I have several watches (4) in a winder used occasionally. Have read criticisms about winders and some say unnecessarily stressing an movement. But in opposition a winder keeps lubricants from coagulating, ie less effective. Many thanks.
very interesting mark thanks for taking the time to explain this phenomenon to us,👍
Thanks for taking a few minutes to watch! (and learn. . .)
Thanks Marc, great video. Is it possible that a magnetized watch could run very slow? My Sumo used to run +3-5 S/d for some reason it had started running very slow -20-25s/d. I’m at a loss to understand. I take very good care of my watches?
The same happened to my Seiko. According to Seiko yes it can lose some time too
Another great engineering/physics based video from Mr. Mark. Thank you. !
Thank you sir!
Great video showing that magnetization does affect the accuracy, but could you give any insight on why? Such as, what internals are affected by the magnetization to cause the change in accuracy?
The balance spring become effectively smaller as the loops are attracted to each other.
@@islandwatch No. The coils attract each other until they touch, this is what shortens the spring and increases the rate. The more coils that touch, the faster the rate.
Let's say you have a cheap-ish watch that runs -8s/day. Since magnets almost always speed the watch up a bit, would it be 'wise' to attempt a quick & dirty speed-up regulation with a small neodymium fridge magnet? You could bring it progressively closer to the watch for a couple seconds, measuring the effect each time using a fancy timegrapher or a smartphone app like WildSpectra. Better not to crack open the caseback if you don't have to.
Hi, Mark. I was reading the comments, because I am considering to buy a watch and I want it to keep the maximum accuracy. You said in a comment bellow that if we don't work in a specially electrified environment, we don't have to worry. But you also said that we have magnets in TV screens and even our laptop has magnets. ISO 6425 includes this protection up to 4800 A/m, which is not that much. I was thinking in a BALL, 80000 A/m, just to be in the safe side. I wonder if I am overreacting... Thanks in advence for your answer.
I am relatively new to this watch game and your channel has been a godsend for me. I also bought that Seiko military from you. I put it on a brown khaki nato and it is my beater for work. I work in construction and it has handled nicely so far.
Thanks! Enjoy!
Hey, I may be little late to the party but I still have a question.
Firstly - great content, keep up the good work! I found especially helpful Your SNA411 bezel tutorial.
I struggle to find any information on the internet of any examples on how strong 4800 A/m (60 gauss) magnet actually is. Do You have any real life examples on Your mind? Or the artificial one, just for the reference sake.
Hi Marc I saw other vids where they said to make sure the watch runs out of power and to a complete stop before you should use demagnetizer. I tried demagnitizing my watch while it was running. Is there a risk to damaging the watch that way?
Can magnetism also make a watch run very slow? I bought a sarb033 that ran +1/3 seconds for the first year and is (rather suddenly) losing more than a minute per day. Can't find a straight answer online on if magnetism always means a faster rate.
Great video,
Devin
Faster only, as it tightens the spring coils.
Long Island Watch Ok, thanks.
Bought a Swiss ETA watch with a magnet mesh bracelet, should I change the bracelet out ??
Very informative. I did not know magnetism was cumulative.
How much threat do you suppose a refrigerator is where one may have multiple magnets. I always think of that as I open my fridge door.
Not much. You are far away, proximity wise, and it isn't long.
great video! one think i would like to ask, how to know if your watch is running faster because it's magnetized?
Y put a compass near it.
Great! So what’s the next stage, in order to regulate it?
Hey Mark, I noticed u flashed a military Seiko style watch to begin the video.. I found this fitting because im a former Marine, and the month of May is kind of military-ish.. Meaning, Armed Forces Day is May 20th, and Memorial Day is May 29th.. Soooo my request to you is that you make a video of your top 5 military watches... If you really wanted to give me some love, use the Marathon USMC Pilot edition, I have that watch in my personal collection... Keep up the great vids, and Semper Fi
Hi everybody, I just bought a set of magnetic wristbands for my watches, and I just loved how light and comfortable are, much better than traditional bands. But I'm super scary about the damage they can induce to my automatic watches precision. Mainly I want to use them in my Seiko Sports collection. Any experience with these bands?
Hello Mark. What about quartz watches ? Do they magnetize? Can I use that demagnetizer machine for quartz watches? Thank you and I am sorry If I made some mistakes in my english.
Nice vids but I'm becoming paranoid...Is my watch winder or mobile phone a strong enough magnite to mess up my phone?
I did this with a cheap demagnetizer. It was running fast 25 seconds a day, now is running slow 8 seconds a day. Should I introduce a magnet again slightly to try and balance it out?!
What magnetic effect does a small military type wrist compass have on a mechanical watch?
Marc that beat error is crazy off-- you need to adjust the stud (not the +/- adjustment on the balance wheel)
Excellent. This is such a great series. Nice to have the engineering prospective.
Great video!, thanks for sharing!, Question: what about winding devices? they are all moved by electric motors, and like any electric machine they produced magnetic fields, right? can those devices magnetized a watch? Thank you very much!
I own a Vostok and I was curious and held a rare earth magnet to it for about two seconds. Watch stopped and I had to tap it to get it going again which was very scary. Do you think this has caused permanent damage to the watch? I don't know if you're still reading these comments but I would appreciate it if you could help
Hi Marc,
Does metal detectors and xray machines affect automatic watches? The TSA insists that I put my watch in the machine and that it is safe.
Hi im from philippines..is your timegrapher available in online..how much the value og that timegrapher.. thank you!!
Thanks! So magnets only speed up watches and do not slow them down?
Marc, this was a very informative video. I've always known about watches and magnetism. But to see it real time on on a timing machine really brings it home. Thank you for doing these great videos. Also I hope you enjoyed BaselWorld and that it worked the way you wanted. -Mark
Thank you! Yes, Basel was excellent. The fruits of the visit will grow in the coming months.
I bought a Chinese automatic a few weeks ago and it's running about +24/day, sometimes around +14. Don't know if it's magnetized or it's just not very well made. But I like it nonetheless.
Excellent educational video Mark.
Awesome video mark and cool Long Island symbol . Got my orient tinny beater and still ticking away from you guys . Thanks
Great, thanks!
Hi Marc, I travel quite excessively and find myself in and out of airports constantly. With that being said, I can't imagine the metal detectors and Xray machines are good for the pieces as I'm passing through security. Is a demagnetizer something you would suggest someone to own, or is it something that you would just have done when the watch is serviced?
What are the negative consequences of demagnetizing a watch while it is running?
Welcome back!! Hope you had a good time. Nice vid and such helpful info!
Awesome time! More to come!
Hi Mark,, I’m considering buying a new IPhone 12 but understood that there is a magnet in the back. Do I have to worry for my automatic watch?
Great video! Could you give us some links recommending where to purchase the beats measuring machine and the de-magnetiser?
Both items were purchased at Ofrei.com : )
Does this work on quartz watch? Can quartz watch get magnetised?
What are the main daily machines that produce magnetic fields?just to know to avoid
-Microwaves
-Welding Machines
-Electric Motors
-Screwdriver with a magnetic tip
Let me ask, I always heard that digital quartz watches are natural anti magnetic and Will not be affect by it at all, is this true?
test out how temperature affects a watches accuracy using the timegraph.
Perhaps as a part 2!
1. how about modern omega cal with anti magnetic 15000 gauss?
2. can seiko spring drive affected by magnets field?
Does it do any harm if the watch is still moving while demagnitize it?
No
Great video. A very clear and informative.
Thank you for watching.
Hi Mark, what I’d really like to know is how do speaker amps and guitar pickups effect magnetism? I have a 100W amp and a 50W amp in my small bedroom, where I store some watches in a watch box by my bed. Also on the bedside table I would charge my iPhone and have the watch box near the charger. So really, what I’m asking is although the watches aren’t in direct contact with the magnet, how strong are the magnetic fields in this instance? I haven’t noticed any seconds skipping or clear signs of magnetism, but is it a good idea to always keep watches as far as possible from chargers and amps/pickups? Many thanks
So I just bought a Seiko watch and on their own website is said that it has Magnetic resistance of 4800 A/m. How is something like that measured and what do those units means? And is 4800 A/m your standard resistance on a watch that was just put there as random fact or?
4800 AMPS per Meter is a minimal field; about 60 gauss; less than 10% what the MilGauss withstands.
Another great video and perfect timing I just demagnetized my Anonimo last night was running over a minute per 24hours. so far running slow 4 seconds in about 12 hours.
I used Lepsi to check for the magnetism do you know if it's reliable or am I better off using a compass?
Sounds great! You did a great job. IMO, if the watch is timing well, why even check for mag? But a watchmaker, I believe, will almost always demag a watch just to rule it out. Its simple and free.
Hello. First, Thank you for your videos which are very interesting and helpful. I hope its alright, but
I have a question about magnetizm
I am using an app to find if the movement is magnetizm or not. But since the phone is very sensitive, it shows results, even on the TimeGrapher Microphone, whis is o.k, as all mics have a magnet.
So, how do i know if the Mic is overmagnetize?
When pointing at a watch, the needle will move, but how do i know if its too high?
Is there a figure or number, in Gauss, which i can consider as "ok level", and only higher numbers are to be addressed as a problem?
Thank you for your help and support.
Gal
strange question. because parts are metal in watches and the parts are moving fluxing EM fields, can storing watches next to each other also cause fluctuations? Or is is just so small and negligible compared to the Earth's field?
Nah, it's just too small for that.
My citizen watches are prone to this. If I demagnatize them the watch hands move around the dial as I hold the button. Is this normal.
What are the magnets that are strong enough to magnetize a watch? Can a hand bag magnet magnetize my watch when i use my hand that have the watch on to grab stuff inside my bag?
Timegrapher is confusion: Headliner indicates my watch at -3 yet the figure on the screen where the dots appear it says -5. Why aren't they the same? Is this telling me something I need to know?
I've read reports that impotency is a side effect if you continuously operate the magnetiser ....
Would a magnetometer at an airport security checkpoint or entering a government workspace impact the watch?
No, doubt it!
I work for the government and a couple of days a week I have to use a walk through metal detector and also use a hand held metal detector. All of our detectors are made by Garrett. After watching this video, I contacted the company and asked if using either of these two metal detectors could magnetize a mechanical watch. They said no.
That was cool man. Is it true u can check to see if your watch is magnetized by running a compass over it??
Yes your compass will ,the needle will spin.
Let the compass lie still. Move the watch so you know any needle deflection is not caused by movement.
what is amplitude in the measuring device? and why is it in degrees?
exxonrcg have a search about lift angle.
Amplitude is the angle the balance wheel is turning from stop to stop. Once the machine knows the lift angle (which we input), it can calculate the amplitude and beat error. These are all diagnostic numbers.
What happens if uacxidentally go into MRI scan with your smart watch?
RIP watch lol
I'm a bit confused. The Rolex milgauss, a watch specifically advertised for being anti magnetic withstands a field up to 1.000 Gauss, according to the official rolex website. Omegas in-house movements such as the 8500 and 8900 found in their planet ocean's are claimed to be anti magnetic to a field up to 15.000 Gauss, and the selling point of watches is not even their magnetic resistance. Am I missing something, maybe the Rolex has a higher rating and I just couldn't find it anywhere?
Hi Mark, one question. I put my new SKX 007 on the table approximately 20 cm of my mobile phone (Lenovo). Can it cause magnetisation?
Nope.
Why did u use a rolex omega or a high end watch
Thank you for the video Mark! My question is this then: is it worth investing a bit more in a watch with magnetic field protection (I am looking at a Sinn for my next purchase) or just spend 20$ on a demagnetizer and demagnetize the watch every so often?
Depends on your environment. If you are in a normal environment, I wouldn't worry about it. If you work around high power machinery (high electrical current) then maybe it's a good idea to get an antii-magnetic watch.
Long Island Watch Thank you for your reply Mark.
Thanks for the video. Quick question. When you demagnetize the watch, should the watch be completely powered down and unwound before demagnetizing? Or does it not matter if it's completely powered down or powered and running when you demagnetize?
I think I've seen most people wait till the watch is completely powered down before demagnetizing, but just wanted to see what your experience and thoughts were on the demagnetizing process.
Thanks.
Can quartz watches get magnetized ? And if so can we demag them the same way ??
Another informative video. Thanks.
Have you now returned from Basel or was this previously recorded?
If you have been to Basel, how was it?
I'm back. It was awesome, great trip. I might do a wrap up video, not sure.
A quartz watch can be magnetized? or only this happens with automatic watches?
Not exactly, but you can fry it!
Amazing and informative!
If we leave a magnetized watch away from any magnets for some days, won't it get demagnetized itself?
Excellent Video, THANKS
Thank you!
Great videos, probably the most informative and useful watch videos out there. I just made my first order ever (2 Bambinos) hopefully Canada customs doesn't hold on to them for too long.
LOL, hope so!
LOL, hope so!
So can a quartz watch produce a magnetic field and magnetize a mechanical watch next to it?
good to see you back, hope you enjoy your bazelworld, once again a great informative video, keep going.
Thanks, it was great. Might do a Basel wrapup video.
Should the watch be running when getting demagnetized? Does it make a difference?
I pull the crown out enough to stop my hacking watch from running while I demagnetize and it seems to work! Goodluck
Another great video Mark, keep it up!
Thank you
It seems to me if magnetism caused the spring to contract it would be pushing less. It would be contacted by the magnetism but that force world not be helping the spring unwind, it would be resisting the unwinding.
Perhaps the magnetism works in opposition and forces the spring a bit out making its natural tension higher. That would be consistent with running fast. The other way is illogical. Imho
Why doesn't the beat rate increase after magnetization?
Love these videos from bill haider
I forgot to take off my Rolex and set it far away from one of my mig welders. I fired up a welder, drew a bead and knew immediately that I made a major mistake. Adios Rolie...well not really, but it started to run minutes fast. The very strong magnetic field due to the welder's current totally magnetized the watch. Fortunately, I was able to degauss it with an old Hewlett Packard vacuum tube ammeter which had a degaussing feature, that is, it was able to degauss the probe. The Rolex responded perfectly and went back on-time.
So... I am waiting for "how to regulate a watch?" that would be very interesting.
It will happen!
Looking forward to that one! It would also be interesting to know why there's never been a watch (or has there?) that's exposed the regulation via buttons on the case to allow you to adjust +/- 1s/day without having to manually crack the case open and touch the extremely sensitive armature.
My Miyota 8215 kept really good time but started losing about 15 minutes per day and would stop on my wrist after a few hours. If I hand wind it, it will run okay for a few hours. Then, it will lose about 15 minutes and eventually stop. I had my watch about 5" close to a 12" speaker magnet before this problem started. Was that enough to damage my watch? I held my watch close to a Silva compass, but the compass needle barely moved. It vibrated a little is all. I have ordered a demagnetizer. Does this sound like a magnetized watch to you, or could there be another problem? Thanks.
Did the demagnetizer work?
@@travisolson9190 No, it didn't. I bought an expensive demagnetizer too. I gave up on the watch. I bought a nice Citizen to replace it.
I'm wondering, could being too close to a microwave oven magnetize a watch? I know there is a magnetron in older ones. I ask this, because I recently purchased a Seiko turtle, and the first day, it was running 20 seconds fast. The following day, after having been close to my running microwave, it started running 30 seconds slow, and has not changed since.
Doubt it.
I'm surprised you did not already have a timegrapher and had to go out a buy one.
I've only been collecting automatic watches for two months and bought one a week ago.
I can imagine a possible problem with customers of a jeweler knowing that a timegrapher was available to analyze the watch they were considering purchasing.
If the readings were not perfect it would be harder to sell the watch. It would introduce a wild variable into the selling process.
Also, don't demonstrate it to your friends in the bar like I did. They could care less and it is beyond their comprehension. Try to find smarter friends - hard to do.
you took a timegrapher to a bar. one questions your intelligence.
Can't argue with you there.
I have no need for one. I don't do repairs, I have a watchmaker for that. And anything I need to do, I don't need a timegrapher for. But now that I have one. . .
Mark!? Anybody!? My watch got SUPER magnetized by a stack of like 12 rare-earth magnets. I tried the blue demagnetizer machine to no avail. I am running like +10 mins per HOUR (not per day). I think even adjusting the regulator won't help. Does anybody know what I can do?
Would a Timegrapher work with pocket watches?
Test the milgauss or omega and see if their claims are true? Should be interesting.
Do quartz watches get affected too?
As far as I understand - it is far easier to magnetise a mechanical watch as the hairspring coils can stick together speeding up the watch considerably. It may be possible to damage a quartz watch but I think the magnetic field would have to be extremely strong and may therefore irreversible damage a quartz watches circuitry.
Quartz watches are affected, but detrimentally, as a high field will fry the circuitry.
a valuable information. Thanks
Very interesting. Thanks!
Do you have to wear gloves when demagnetizing a automatic watch?
No
Thanks Mark !
thank you!
Ok, so when you use a compass as a diagnostic tool for magnetisation should there, ideally, be no response at all? Or is a faint respons normal (as a compass will react to non-magnetized ferrous metals anyway, won't it?)
It is really the degree of the response. A watch case will attract a magnet somewhat.
My entire career is in high strength magnets. A little frustrating that one of my passions is also mechanical watches.
Eric S i have a thread in watchuseek going, wearing an aquaterra 15000 gauss to work every day for a week (i am an MRI tech). You should check it out
Many watchmakers have told me that a magnetized watch can gain several hours (!) per day., and I really would like to see that effect. Could you please also show what happens when you try all that with the case-back opened.
A really magnetized watch runs extremely fast. Perhaps I'll do a part 2 one day.
This is what I love to watch.
Better than primetime TV? :)