Bent balance wheel pinion

[AndyGSi]

From the bridge shape and the position of the click on the barrel I believe it's a Movado but haven't been able to find an exact match.

[nevenbekriev]

Do we have a picture of the bridges side?

[VWatchie]

On 8/14/2024 at 9:34 PM, dnhb said:

I've been presented for repair a no-name watch wherein I find a balance wheel with a bent pinion.

This initially sounded unusually exciting because I had never seen or heard of bent pinions. I don't mean to be snotty, but terminology is important, especially when we do not have any pictures.

Edited August 17, 2024 by VWatchie

[dnhb]

1 hour ago, Neverenoughwatches said:

Different click system. I think we've established that its gruen though.

Yes - that's really helpful. I wonder if all Gruen movements are silent about their origin (the only mark I've found is the number 5 under the balance bridge).

23 minutes ago, VWatchie said:

This initially sounded unusually exciting because I had never seen or heard of bent pinions. I don't mean to be snotty, but terminology is important, especially when we do not have any pictures.

I apologise for the typo - it should have been "pivot". I should read my posts more carefully before launching them.

[VWatchie]

31 minutes ago, dnhb said:

apologise for the typo - it should have been "pivot". I should rea

No worries! Good thing our other friends aren’t as thick as me 

[Neverenoughwatches]

Here is the keyless match, there doesn't look to be anything else like it, as simple or any interchangability

[JohnR725]

13 hours ago, VWatchie said:

when we do not have any pictures

I think somewhere on the other page was hinted that may be perhaps there were more pictures in a discussion somewhere else on the message board that I couldn't actually find. I think oftentimes people fail to grasp how big the message board is and if they left other discussion somewhere in the universe they should give us a link.

3 hours ago, Neverenoughwatches said:

Here is the keyless match, there doesn't look to be anything else like it, as simple or any interchangability

There is always the other method it's a bit problematic though. If we had the proper measurements of the stem we can see what matches that.

[Neverenoughwatches]

45 minutes ago, JohnR725 said:

I think somewhere on the other page was hinted that may be perhaps there were more pictures in a discussion somewhere else on the message board that I couldn't actually find. I think oftentimes people fail to grasp how big the message board is and if they left other discussion somewhere in the universe they should give us a link.

There is always the other method it's a bit problematic though. If we had the proper measurements of the stem we can see what matches that.

I forget that sometimes, if we're lucky we have a stem to measure up, and maybe some dimensions that could be taken from the staff with the collet and roller removed. 

[dnhb]

1 hour ago, JohnR725 said:

I think somewhere on the other page was hinted that may be perhaps there were more pictures in a discussion somewhere else on the message board that I couldn't actually find. I think oftentimes people fail to grasp how big the message board is and if they left other discussion somewhere in the universe they should give us a link.

There is always the other method it's a bit problematic though. If we had the proper measurements of the stem we can see what matches that.

My apologies: I hadn't worked out how to provide a link to the forum on which I initally requested help in identifying this wristlet (as I've learned it is) & thought the topic wording would allow it to be found via Search. However, I've now got the link (I think): https://www.watchrepairtalk.com/topic/30287-any-ideas/#comment-257492

Thanks again to colleagues' for your interest in this issue.

 

1 hour ago, JohnR725 said:

There is always the other method it's a bit problematic though. If we had the proper measurements of the stem we can see what matches that.

Although the wristlet has been retrieved by its owner I have kept the (damaged) balance so, under your guidance, I will attempt to provide the relevant measurements.... 

[Neverenoughwatches]

Richard told you the 375 hallmark,  this is the gold content of that piece 37.5% . The 2 letters, one may provide the date of the assaying (UK) . Depending where the case was made, English assaying has been accurately registered for at least a couple of hundred  years.

Shame you didn't hang on to the stem, easier and safer to measure. 

[dnhb]

1 hour ago, Neverenoughwatches said:

Richard told you the 375 hallmark,  this is the gold content of that piece 37.5% . The 2 letters, one may provide the date of the assaying (UK) . Depending where the case was made, English assaying has been accurately registered for at least a couple of hundred  years.

Shame you didn't hang on to the stem, easier and safer to measure. 

Yes, I was grateful for his input: it confirmed what the owner claimed ie that the case was 9ct gold. Incidentally, the bezel (&crystal) - which I'd removed in order to extract the movement - snapped in the process of refitting it on the lower half of the case. This prompted a closer look at the latter which revealed a crack running up to its rim over the top half of its depth. I assumed that when I removed the bezel the crack opened slightly more (as the 'containing' pressure from the bezel was removed) & this widened crack put too much strain on the bezel when I replaced it.