Quote:
Originally Posted by Rollieboy
The other day I was worried of overwinding it as I was looking to hear that sound, but I guess that protection mechanism prevents this, no matter how many full revs you wind it. Right?
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It is not possible to over-wind any automatic wind watch. The mainspring is not attached to the barrel but rides on indents in its inner diameter. When the spring is fully wound, it slips inside the barrel.
Rolex barrel indents are probably a different shape than the ETA's, hence the slight click in the ETA movements when fully wound.