Quote:
Originally Posted by Dirt
Temp does indeed play a roll.
It's part of the suite of parameters that comprise COSC certification with 3 different temps which come into play.
Interestingly, and I don't have a clue as to why 
But one of my all time best timekeepers used to lose a little time whenever I flew.
Is it an altitude thing?
Just the other day I ran across the manual for the movement which I have in a GS and the manual outright states the a diagram and everything that timekeeping slows when temps are higher and speeds up when colder. This is to be fully expected as the Balance expands and contracts with temp variations. |
Yep this makes a tonne of sense as the spring will be “tighter/stiffer” when cold.
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