3861 movement broken? *Update: Read First Post*

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FWIW, I tested my 50th Anniversary with a full wind and started the chrono, and let it run for almost 50 hours. I observed no problems at all. The watch averaged no more than +2 sec/day during the 50 hours. Whether my watch will eventually experience the problem I don't know (who can predict?) Because of its collectability I don't plan to wind or wear it regularly, so who knows if it will ever experience the problem during my remaining lifetime?
 
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It seems people have to a degree lost their minds over this one, and I can't quite figure out why...

No, I don't think that people have lost their minds over this issue.
What I think is that, people want to buy this watch with peace of mind that this issue has been seen to and fixed in the watch that they're about to buy.
 
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No, I don't think that people have lost their minds over this issue.
What I think is that, people want to buy this watch with peace of mind that this issue has been seen to and fixed in the watch that they're about to buy.

Then they need to have patience and give Omega time to do that. The new bushing was only put out as the solution a few weeks ago, so this isn't going to get fixed overnight.

Just to add some perspective here, back in 2014 in February, after people reported numerous problems with the dual barrel movement watches that had DLC coated barrels, Omega announced a fix for that. The barrel coating was causing an unexpected reaction with the barrel arbor, so a newly designed barrel was implemented where the coating didn't contact the arbor. This would cause reduced power reserve or stopping of the watch completely, so very similar outcome to what the 3861 is having now.

There were 7 different barrel references that were affected, and Omega rolled out replacements in stages, starting in February of 2014, and they finished it 2 years later. During this time the problem was well known, and no one was calling for recalls, letters making announcements/commitments being sent to every owner, and all the things that have been talked about with regards to the 3861.

So we can agree to disagree about people losing their minds on this one.
Edited:
 
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Then they need to have patience and give Omega time to do that. The new bushing was only put out as the solution a few weeks ago, so this isn't going to get fixed overnight.

Just to add some perspective here, back in 2014 in February, after people reported numerous problems with the dual barrel movement watches that had DLC coated barrels, Omega announced a fix for that. The barrel coating was causing an unexpected reaction with the barrel arbor, so a newly designed barrel was implemented where the coating didn't contact the arbor. This would cause reduced power reserve or stopping of the watch completely, so very similar outcome to what the 3861 is having now.

There were 7 different barrel references that were affected, and Omega rolled out replacements in stages, starting in February of 2014, and they finished it 2 years later. During this time the problem was well known, and no one was calling for recalls, letters making announcements/commitments being sent to every owner, and all the things that have been talked about with regards to the 3861.

So we can agree to disagree about people losing their minds on this one.
Agree with what you said and to a
Then they need to have patience and give Omega time to do that. The new bushing was only put out as the solution a few weeks ago, so this isn't going to get fixed overnight.

Just to add some perspective here, back in 2014 in February, after people reported numerous problems with the dual barrel movement watches that had DLC coated barrels, Omega announced a fix for that. The barrel coating was causing an unexpected reaction with the barrel arbor, so a newly designed barrel was implemented where the coating didn't contact the arbor. This would cause reduced power reserve or stopping of the watch completely, so very similar outcome to what the 3861 is having now.

There were 7 different barrel references that were affected, and Omega rolled out replacements in stages, starting in February of 2014, and they finished it 2 years later. During this time the problem was well known, and no one was calling for recalls, letters making announcements/commitments being sent to every owner, and all the things that have been talked about with regards to the 3861.

So we can agree to disagree about people losing their minds on this one.

Agree and disagree to a certain extent...

When I purchase something expect it to function as advertised. I understand that "stuff" happens during production of products. I get a G-Shock I expect it to keep relatively good time. I get a Seiko Chrono, I expect it to function otherwise it goes back for exchange/replacement. I hope we all agree on this part. When I purchase a certified Chronometer, I expect it to perform within specification +/- seconds a day. When it's also COSC and METAS certified Master Chronometer, I shouldn't have to it functioning properly once it is home.

According to the OMEGA site, the 3861 was in development for 4 years. The time pieces go through COSC certification and METAS certification before being released to the wild for sale. During the tests you would think that the chronograph function of a Speedmaster would get checked, not just checking that the piece is keeping proper time after all the variations in position, temperature, magnetism. I've only been able to find references for timing certification, I asked the OB about testing the chrono during certification ( pushing the buttons) and they didn't have an answer for me. Nor in my follow up emails to them (see my post page 6). I forwarded my concerns to Arnaud Michon, Swatch Group US President/CEO via email this weekend since my other email attempts with his team has gone unanswered. Including the most recent to the OMEGA Customer service no reply in 19 days even after the receiving the automated message from customer service that got my message and will get back to me. I think I've been proactively trying to help fix the problem that they may have missed the step of pushing buttons during certification...I can only speculate. Do I think that the 3861 will be repaired during service in the future...I certainly hope so for those who are having problems. Talk to the AD and OB about your concerns when buying and I seriously hope you get a solid timepiece that you can thoroughly enjoy 😀

The OB I purchased from said that they had not ever seen the problem like I was explaining to them which I didn't doubt given the recent release of the time piece. I explained further and showed the video of chrono push start lock-up and my concerns of getting another at this time because the one I just purchased had been fresh from factory. OB manager said they do not do returns, they only do exchanges or store credit. Said refund was out of her hands and that they did get in another fresh from the factory. So I exchanged for #2. Same problem with #2...my bad luck it would seem and sad at the overall experience and loss of appeal in the timepiece. Had videos again for #2 which I showed to the Manager and Technician. The technician also told me that he was unable to reproduce the lock up fault and had set it back. Still the OB would only authorize store credit. The whole time I was nice and constructive on resolving the purchase and communicating the problem encountered and making sure they had what they needed to further isolate and communicate up the chain what I was experiencing, never went Karen 😀 OB manager gave me her bosses info to contact for full return on the purchase. Which I did and the OB was finally able to refund the money. I felt bad about the situation and trying to get it resolved since I could see the staff could see the problem and were in-between a rock and a hard place.
 
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B Bry
When I purchase something expect it to function as advertised.

Since it seems I need to keep saying this, yes I agree. I understand completely that people expect something to work as it should, and that they are disappointed when it doesn't.

B Bry
I think I've been proactively trying to help fix the problem that they may have missed the step of pushing buttons during certification...I can only speculate.

This is a fundamental misunderstanding of what the problem actually is. This is not a "chronograph" problem, so "pushing buttons" during the testing isn't relevant. It's an "excess load" problem created by the deterioration at the center wheel and the black debris generated. I'm not allowed to show Omega internal communications, but the photos they have sent make it clear what the problem is.

This adds drag to the movement, and brings the balance amplitude down. Once the chronograph is started, it adds even more load, and the watch stops. The problem is not the starting of the chronograph, but the lack of power from the center wheel issue. The fact that the watch stops when the chronograph is started is just the symptom.

I actually talked about this once already in this thread...

So the stoppage on activation of the chronograph is a strange one. The adjustments for the 3861 are exactly the same as the 1861, 861, and 321 in terms of the set-up of the various wheels in relation to one another. If improperly set-up, this can cause jamming of everything when the chronograph is activated, but it seems unlikely that all Omega's watch assemblers are suddenly forgetting how to set this up properly.

The only thing I can think of is that if the watch already has the center wheel issue, it will have low balance amplitude, and possibly the added load of the chronograph causes it to stop. Can't say that for sure, but it's the only thing that seems to come to mind as I see more reports of this happening.

Since I made this post Omega released additional information, including the photos I spoke of above., This confirms to me that this is an amplitude problem, and not a chronograph problem.

Good luck with your emails to Arnaud, but Omega already knows what the problem is and how to fix it. They don't really need your help.

Cheers, Al
 
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Rolex 3235 has probably a more wide spread issue as it is a movement in many watches.

But ask a watchmaker tried and true or newer model.
Read this a while back.
http://bhi.co.uk/wp-content/uploads/2018/04/April-HJ-2018-Article-of-the-Month.pdf


Anyone that thinks one or two watches tested by Omega or any brand is as good as 10000 actual real wrists.
You are a brands testing environment. Real world wear.

Just remember half the cars in the world from $10k to $200k had the dodgy airbags that had to be replaced. This took 7 years to tell everyone even after they knew and covered it up by replacing the same airbag
 
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Since I made this post Omega released additional information, including the photos I spoke of above., This confirms to me that this is an amplitude problem, and not a chronograph problem.

Good luck with your emails to Arnaud, but Omega already knows what the problem is and how to fix it. They don't really need your help.

Cheers, Al

Last thing i would want is for you to disclose inside information as the watchmaker. You surely don't want to be visited by the Hippocampus in the middle of the night!! 😀

The question that needs to be answered in my opinion is if the watch is being tested using the chrono buttons during initial certification??

I know the timing is according to OMEGA site and videos. If they were testing the chrono function it would be mechanically stopping the entire movement and they would be fixing these and recertifying before shipping out to the stores.
 
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Archer,

Is the Omega-prescribed bushing replacement for all coaxials, only those with a center wheel assembly that connects to the chronograph components, etc.? IOW, what is the scope?

Thx,

z
 
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B Bry
Last thing i would want is for you to disclose inside information as the watchmaker. You surely don't want to be visited by the Hippocampus in the middle of the night!! 😀

The question that needs to be answered in my opinion is if the watch is being tested using the chrono buttons during initial certification??

I know the timing is according to OMEGA site and videos. If they were testing the chrono function it would be mechanically stopping the entire movement and they would be fixing these and recertifying before shipping out to the stores.

Yes, beware the hippocampus! 😀

Testing of the chronograph is not part of METAS, or COSC, or any other standard that I am aware of. Of course the chronograph is tested as part of assembling the watch, but it is not specifically part of the testing that you are referring to.

Keep in mind it takes time for the watch to develop this problem. The bushing issue creates this debris after running for some time, so it likely wouldn't be apparent until the watch is out in the real world.
 
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Archer,

Is the Omega-prescribed bushing replacement for all coaxials, only those with a center wheel assembly that connects to the chronograph components, etc.? IOW, what is the scope?

Thx,

z

This is specific to the 3861 only.
 
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Anyone that thinks one or two watches tested by Omega or any brand is as good as 10000 actual real wrists.
You are a brands testing environment. Real world wear.

Same as pharmaceuticals. That's what all those ads for new drugs are all about. They need boots on the ground.

I prefer testing watches.
 
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Keep in mind it takes time for the watch to develop this problem. The bushing issue creates this debris after running for some time, so it likely wouldn't be apparent until the watch is out in the real world.
I've read that few of them developed this issue within a day of getting the watch.

My commonsense tells me that any important test, on any instrument, normally should run for considerable period in time, in order to get its required results tested properly.

I also understand that a watch movement is tested under circumstances that closely resemble the normal wearing of the watch, to get genuine conclusions.

I'm sorry if I'm wrong... just my commonsense...
 
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A fellow over on WUS reports the failure right out of the box. That’s very difficult to describe as wear-over-time (impossible) and suggests very limited testing of the fully assembled caliber.

Hopefully, Omega will ensure their OB’s and AD’s get all of the suspect SN’s back for upgrades before folks experience further inconvenience.

No drama; poor execution.

z
 
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A fellow over on WUS reports the failure right out of the box. That’s very difficult to describe as wear-over-time (impossible) and suggests very limited testing of the fully assembled caliber.

Hopefully, Omega will ensure their OB’s and AD’s get all of the suspect SN’s back for upgrades before folks experience further inconvenience.

No drama; poor execution.

z

Yes, the one where he was not able to duplicate the problem after that first incident, and even let it run a full 48 hours with the chronograph running and it didn't stop. Unclear what the cause is there. But keep in mind that when you get a "new" watch, it has been run for a fair bit of time. You have no way of knowing how much, because if it has sat in the display case, someone could have wound it many times before it was sold.
 
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Yes, the one where he was not able to duplicate the problem after that first incident, and even let it run a full 48 hours with the chronograph running and it didn't stop. Unclear what the cause is there. But keep in mind that when you get a "new" watch, it has been run for a fair bit of time. You have no way of knowing how much, because if it has sat in the display case, someone could have wound it many times before it was sold.

I believe it’s yet another:

https://www.watchuseek.com/threads/do-i-have-the-3861-problem.5321451/post-53725534

z
 
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Yes, not "right out of the box" though...

One thing to keep in mind when you read these in general, is that many people are "scared" to wind their watches fully for fear of somehow breaking it, and some insist on only winding it once every 2 days, rather than every day. You can find lots of threads here on how to properly wind a watch, and threads where someone complains about a low power reserve only to find that they aren't winding it fully of every day.

Unless you know all the details of how the watch is being used, I would caution jumping to any conclusions. The only way to actually diagnose this as a bushing issue, is to take the watch apart and inspect it.
 
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Yes, not "right out of the box" though...

One thing to keep in mind when you read these in general, is that many people are "scared" to wind their watches fully for fear of somehow breaking it, and some insist on only winding it once every 2 days, rather than every day. You can find lots of threads here on how to properly wind a watch, and threads where someone complains about a low power reserve only to find that they aren't winding it fully of every day.

Unless you know all the details of how the watch is being used, I would caution jumping to any conclusions. The only way to actually diagnose this as a bushing issue, is to take the watch apart and inspect it.

I believe Omega has identified the remedy and therefore, a conclusion - but - I hope you get a few examples on your bench so that we can hear of your findings, first hand.

z
 
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I believe Omega has identified the remedy and therefore, a conclusion - but - I hope you get a few examples on your bench so that we can hear of your findings, first hand.

z

The point I'm making is that when someone reports a 3861 stopping when they start the chronograph, we can't automatically assume it's an issue with the bushing. Chronographs can stop the watch when activated for a number of reasons.

As I said people are sometimes not well versed in even how to wind the watch...as if on cue...

Winding a Moonwatch | Omega Forums

Again, only once a specific watch with this problem is fully disassembled can an accurate cause be determined.
 
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Again, only once a specific watch with this problem is fully disassembled can an accurate cause be determined.

I assume that this has been done by now.
What baffles me is the fact that this issue with this movement was not noticed prior to the watches being shipped out.
 
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I assume that this has been done by now.

You assume it has been done by now on what? On the watch talked about in the WUS thread? The post made by the person was 17 hours ago, so I would be surprised if they had time to get it to Omega and they have taken it apart that quickly. I didn't see anyone in that thread say that watch had been taken apart and the cause confirmed.