FWIW, I've tested the PR of my watch both ways (just taking it off after wearing it for 16 hours a day - every day) and also by winding it 40 times from a dead stop. It went over 70 hours every time.
But lately, I've been meaning to test it again (40 winds from dead) because the last time I let it die (from just wearing) it seemed to only go like 55 or 60 hours. I could have been lazy that week.
And also, for what it's worth, my watch is running at a steady -10 spd for the last few months. At least it's steady.
Warranty is up in June - 2023.
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