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3861 movement broken? *Update: Read First Post*

Archer
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R RWDOFR
As stupid as this may sound, that's a bit of a relief - I was starting to second guess myself.

I know this may be difficult to say but, is that generally something to be expected, if I'm jumping around celebrating? It was a good goal, but I wasn't exactly going into orbit.

Many thanks.

Some time ago three or four different people had this issue, but I don't recall there being any resolution. I think some even took the watch to Omega and from what I recall, were told there was nothing wrong.

The minute counter is held in place by a small spring when the chronograph is running. There's a chance this spring could be adjusted to hold the counter in place with more force, but there's a balance to be had between too little and too much force. If the spring is adjusted too aggressively, it could cause the entire watch to stop when the minute counter tries to flip...
 
R
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Archer Archer
Some time ago three or four different people had this issue, but I don't recall there being any resolution. I think some even took the watch to Omega and from what I recall, were told there was nothing wrong.

The minute counter is held in place by a small spring when the chronograph is running. There's a chance this spring could be adjusted to hold the counter in place with more force, but there's a balance to be had between too little and too much force. If the spring is adjusted too aggressively, it could cause the entire watch to stop when the minute counter tries to flip...

Many thanks for the explanation.

I did try to recreate the scenario a couple of times in the last two days to see if it happened again. And whilst it's difficult to duplicate the full force without that element of surprise, the scenarios were unnervingly similar reconstructions, and both times returned accurate measurements, so I'll consider this one an education, keep an eye on it and bear it in mind for future use.


Thanks again.
 
4011021
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R RWDOFR
Many thanks for the explanation.

I did try to recreate the scenario a couple of times in the last two days to see if it happened again. And whilst it's difficult to duplicate the full force without that element of surprise, the scenarios were unnervingly similar reconstructions, and both times returned accurate measurements, so I'll consider this one an education, keep an eye on it and bear it in mind for future use.


Thanks again.

Glad that your watch is fine.
 
T
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Nearly 3 years in my 3861 has started to fail. Twice in the last 24 hours it's just completely stopped, while having plenty of power reserve left (I fully wind it every day).
I'll drop it off for warranty service in the next few days.
3 years (minus a few months) is better than I got out of the initial one that it replaced, which failed within days.
 
4011021
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I've been wearing my 3861 every day since November 29th, 2023. Bought it in March 2022 but had just used it straight for a few days since then. It's working great, and it gained 12 seconds in these 2 1/2 months of daily use. Hope it will last for more than three years without needing service.
 
gnuyork
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T tooch
Nearly 3 years in my 3861 has started to fail. Twice in the last 24 hours it's just completely stopped, while having plenty of power reserve left (I fully wind it every day).
I'll drop it off for warranty service in the next few days.
3 years (minus a few months) is better than I got out of the initial one that it replaced, which failed within days.


Same thing happened to me last year in the fall (not long ago). I've had mine since January 21, (in fact, I believe I was the first to get one in my state) and it just suddenly stopped. I thought I had forgot to wind it, so I wound it and wore it, it seemed fine, but then overnight it stopped again.

Anyway, I took it back to the boutique and they covered it under warranty. They said 6-8 months, though!!

Last month I was near the boutique for work and I thought I would stop in to inquire about the potential new white dial Speedmaster, and to my surprise they had my watch ready. I wasn't expecting that (and also wondering why I wasn't called...).

So far, so good. I wear it nearly every day. I've noticed that it's a bit faster than before. I think I (unofficially) measured mine at +0.4 seconds per day before the service over a period of about 6 months worn and wound daily (I checked when I had to do the DST time change) but now it seems like its a few seconds fast. A little bit of a bummer, since it used to be quartz accuracy and that was truly quite remarkable, but maybe it will settle in. They did replace the acrylic crystal and the watch looks brand new, minus the micro scratches on my clasp and the ever so tiny ding on my bezel.

I'm not sure what was wrong with it, I asked and they mentioned that it had poor amplitude, but I didn't press for details. I'm just happy it was fixed and sooner than expected. While there, I tried on the new moonshine. Really nice!

Mooshine-2.jpg
Edited:
 
magicbadger
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I had the same issue as described above, bought watch in early 2021 and recently it just stopped. I took it to the boutique and the guy told me I had probably ‘overwound it’ whatever that means. I have always wound the watch once per day, in the morning. I waited while he filled in some forms but he was taking too long and I didn’t like the cut of his jib so I took the watch home and asked Omega to send me a return box. This they did, and told me it would take 12 weeks. They have just returned the watch after about 2 weeks indicating that it has had a full service. They also included a cool red box, did anyone else get one of these?
 
IMG_0833.jpeg IMG_0832.jpeg
YY77
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magicbadger magicbadger
I had the same issue as described above, bought watch in early 2021 and recently it just stopped. I took it to the boutique and the guy told me I had probably ‘overwound it’ whatever that means. I have always wound the watch once per day, in the morning. I waited while he filled in some forms but he was taking too long and I didn’t like the cut of his jib so I took the watch home and asked Omega to send me a return box. This they did, and told me it would take 12 weeks. They have just returned the watch after about 2 weeks indicating that it has had a full service. They also included a cool red box, did anyone else get one of these?
Yep, got it with my A11 50SS which got the issue 3.5 years in:
upload_2024-3-9_17-25-14.png
 
gnuyork
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magicbadger magicbadger
I had the same issue as described above, bought watch in early 2021 and recently it just stopped. I took it to the boutique and the guy told me I had probably ‘overwound it’ whatever that means. I have always wound the watch once per day, in the morning. I waited while he filled in some forms but he was taking too long and I didn’t like the cut of his jib so I took the watch home and asked Omega to send me a return box. This they did, and told me it would take 12 weeks. They have just returned the watch after about 2 weeks indicating that it has had a full service. They also included a cool red box, did anyone else get one of these?
Yes, I got the same red box, when picking mine up from the OB.
 
140dave
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magicbadger magicbadger
I had the same issue as described above, bought watch in early 2021 and recently it just stopped. I took it to the boutique and the guy told me I had probably ‘overwound it’ whatever that means. I have always wound the watch once per day, in the morning. I waited while he filled in some forms but he was taking too long and I didn’t like the cut of his jib so I took the watch home and asked Omega to send me a return box. This they did, and told me it would take 12 weeks. They have just returned the watch after about 2 weeks indicating that it has had a full service. They also included a cool red box, did anyone else get one of these?

Good call on handling the service yourself, anyone who says you "overwound" it deserves no further contact with your watch.

I am surprised at the quick tunraround, but hey as long as they gave you the service card and 2yr warranty I'd just call that part a lucky win.
 
gnuyork
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OK, so now after having my watch back from service, I recently noticed there is something still acting up with it. It seems that the hour sub dial shows at 1.5 hours randomly as per my photo below:

Speedmaster_3-29-24-1.jpg

This has happened 3 or 4 times now. The first few times I thought I just stopped the chronograph on exactly 12 after having it engaged for hours, like I do sometimes, so the first few times I though it was odd, but didn't think much of it and then I reset the chronograph again and go on about my day... but it happened again this morning. I never see or notice the hour sub dial hand move, it's just I check my watch and I suddenly notice this has happened? It also seems to be random. For example right now everything is fine. Has anybody else ever experienced this?
 
YY77
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gnuyork gnuyork
OK, so now after having my watch back from service, I recently noticed there is something still acting up with it. It seems that the hour sub dial shows at 1.5 hours randomly as per my photo below:

Speedmaster_3-29-24-1.jpg

This has happened 3 or 4 times now. The first few times I thought I just stopped the chronograph on exactly 12 after having it engaged for hours, like I do sometimes, so the first few times I though it was odd, but didn't think much of it and then I reset the chronograph again and go on about my day... but it happened again this morning. I never see or notice the hour sub dial hand move, it's just I check my watch and I suddenly notice this has happened? It also seems to be random. For example right now everything is fine. Has anybody else ever experienced this?
Yes:

https://omegaforums.net/threads/speedy-cal-3861-hourly-subdial-hour-register-creep.143283/

This is the explanation:

https://omegaforums.net/threads/the-mysterious-speedmaster-hour-counter.125632/
 
Dirty Tool
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I’ve owned my speedy 3861 nearly 2 years to the day. Yesterday I tried to use the chrono function - when I pressed the pusher the chrono hand barely moved and the watch seconds hand stopped.

When I pressed the reset pusher the watch seconds started again. However the chrono function does not work at all now. I will be returning the watch to an OB, based in London.

Edit - noticed the watch stopped after being fully wound. It lasted around 8 hours.
Edited:
 
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