Hi Iím hoping someone can answer this question. I have this watch my dad obtained in the early 80ís. After his passing a few years ago I decided to clean it up and wear it occasionally. My question is, when I wind it the crown, for lack of a better term, snaps back. It seems too run well and keeps time but Iím not sure how many rotations I should give it or if this action is proper. Thanks in advance for any help or guidance anyone can offer.