Quote:
Originally Posted by Rori
Oh so a watch can pass from being plus to minus “second per day” depending on power reserve?!
Didn’t know that. I thought it either go fast or slow.
Good to know, this explains why my SD43 passed from being plus 2 sec to now - 0.5.
It’s getting no more than 10 hours of wrist time per day. That explains everything now.
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This may be a dumb question....but isn’t wearing a Rolex 10 hours a day enough movement to keep the watch fully run and performing accurately? If not, how much? 12?
Also, as for “fully wound”...I wind the crown 20-25 times (I thought was recommended). Isn’t that enough?
I have a ladies’ Yachtmaster, so not the movement at issue, but my watch turns 20 next month and it keeps great time. I’d guess that the power reserve is at about 30 hours, though.