WatchProSite|Market|Digest
WatchProSite|Market|Digest

Breguet

If you have access ...

 

To a watchmaker that has a good timing machine (the moderns Witsch are great) I would suggest that you do a quick check.

There you can remove the potential ambiguity and check if your watch is under the correct parameters on all positions.

I do this check to all watches that I acquire and this check is very useful to determine, without opening the watch, if the watch is or not in good shape.

I pay extra attention not only to the deviation (seconds/day) but also to other parameters like "beat errors" and the escapement amplitude. Each movement has an ideal amplitude and when the amplitude is too low, it implies (on my non-expert mind) the need of a full service (that is not, I believe, the case of your watch).

Recently I "lost my sleep" with a recent acquisition that was performing at -25s/day and this watch is chronometer certified. I went to my watchmaker expecting the worst and to my surprise a simple adjustment put the watch on 1+/- s/day that I consider to be outstanding for a mechanical watch.

I would love to hear from the true experts from here (I'm just a curious mind on this matter) what they think.

Cheers,

Nilo

  login to reply
8 Comments view entire thread 

Breguet 5817 slow

 
By: Slava S. : April 1st, 2012-15:33
I have had this watch for three years now. Initially it kept very good time - plus or minus about 30 sec a month. Two years ago it stated to fall behind - about 1 minute a week. I sent it to Breguet for repair. It took them three month, but when the watch... 

You do seem to be within the acceptable range.

 
By: Bill : April 1st, 2012-16:30
I came across this chart some time back on the internet not sure who to credit. It gives you a range for reasonable expectations. It seems you are falling in the middle of Modern mechanical watch non-certified at -5 per day. But it seems strange that afte... 

Is there a published spec for the watch?

 
By: Slava S. : April 1st, 2012-20:33
Bill, thank you for the response. The table is interesting, but I am wondering how it relates to this specific watch. Do you know whether Breguet ever published a specification for the watch? I found a description on this site http://www.presentwatch.com/... 

The example I provided was a guide

 
By: Bill : April 2nd, 2012-06:41
It was merely to represent the fact that mechanical watches have margins in which the operate. But I do think you should try and find out why you get such a variance after each service which seem not to be normal. Bill

Bill, thank you for the...

 
By: Slava S. : April 2nd, 2012-10:13
Bill, thank you for the infromation and encouragememt - very much appreciated.   Best regards Slava S.

If you have access ...

 
By: nilomis : April 2nd, 2012-12:04
To a watchmaker that has a good timing machine (the moderns Witsch are great) I would suggest that you do a quick check. There you can remove the potential ambiguity and check if your watch is under the correct parameters on all positions. I do this check... 

Hi Nino, this is a...

 
By: Slava S. : April 2nd, 2012-19:53
Hi Nino, this is a very good point – thank you. I will follow up and let you know what the measurement shows. By the way, I found the e-mail from Breguet service manager where he explained what they found when I sent the watch for repairs. His respo...