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Re: Effects of Temperature Change *LINK*

In Response To: Effects of Temperature Change ()

Forgive me if this is a re-Post: Thought I'd released it, but maybe just "previewed" it....

Been tracking precision accuracy of my 2254.50 (same movement as your 2531.80) for exactly 60 days now. Heard a lot about "positions" and "orientation," but didn't notice real significant changes in time keeping until I put the watch on ice and snow for some photos (see link below). Then, as you describe, Dave, several second gains per day. Of course, temperature is a part of COSC testing, so I've kept an eye on that aspect ever since.

Sure enough, there is a variation (gain) when I have the watch off my wrist for a while, as opposed to on 24/7 (my normal routine: Same philosophy as yours about what my watch should be capable of -- beyond keeping my dresser trop pretty).

So, while you ask if "extreme" temperature changes can affect time keeping, in my opinion, even minor ones can, and do.

Would be very interested in any technical thoughts on this. Is friction a bigger factor than gravity? It would seem so, at least insofar as the 1120 caliber movement is concerned (in my opinion).

Thanks for noticing and Posting this, Dave!

Link to photo gallery for my 2254.50