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      07-09-2018, 08:40 PM   #44
SchillerM
First Lieutenant
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Drives: 11' 550i, '00 M5, '11 E90 335i
Join Date: Apr 2014
Location: Vancouver, WA

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I never kept track, but only time I would notice watch was off is if I didn't last it flat overnight. I'd have to adjust time every other month due to not being quick set.
That was on my 1967 Datejust, which took a hit on the crown and is now only accurate 2 times a month...
Matt
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