Vacheron Constantin

What is considered acceptable in terms of accuracy? I have noted that the watch has been off by 2 seconds or as much as 20 depending on whether it was on a winder etc. How do I determine true accuracy?

over the course of a day. On the wrist for 12-16 hours. Off, usually dial up, for the remainder of the day. Other people will have different answers, I'm sure.

That said, the variation you are experiencing doesn't seem totally right.


Bill

Contact VC in NYC? Chech accuracy by another means? Check without it being on a winder?

wouldn't bother me, but then I rotate watches on the wrist quite frequently.

I would see how the watch keeps time when worn, rather than on a winder. If you still don't like the performance then contact VC and ask them to regulate it for you.


Bill

If the watch is consistently fast or slow you can have it regulated. If its performance changes by that much, it's probably the result of either (1) positional variation that is much greater than should exist; or (2) the watch's being thrown off by movement when you are wearing it, which also should not really happen to that extent. The variation wouldn't be unacceptable in a cheap watch, but a Vacheron should perform better. Chances are that the problem is primarily one of lubrication, indication that servicing might be in order.

It has varied within 2 seconds but is currenyly excatly on time. Will 9 hours wear time provide a clear answer?

BTW: VC in NYC tells me 10 seconds plus or minus is within standard.

I assume this must have something to do with the watch winder? IT'S a Wolf and I have it set for 12 hour operation. Any opinions?

I just hope the watch keeps up the good results you just reported so that you won't have to worry.


Bill