F.P. Journe

This is to ask if anyone knows if the resonance sync-crown (at 4 o'oclock) will lose its springyness over time. I noticed that it does not spring back as fast or as tightly over time. is this normal. Any feedback greatly appreciated Thanks mattie

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Mine doesn't feel as crisp as another one I tried a while back, however I think that it is still within normal range. If you are worried about it, perhaps it is worth swinging by the AD? Wonderful watch in any case! Enjoy it! R

you should not worry. I have not noticed the spring get "softer" over time, but I also don't reset it very often. If it's too loose it will get corrected the next time it's in for service.