I have my grandfather's old pocket watch, which was given to him by my grandmother as a wedding present, about 1929. I had it serviced about two years ago by a jeweler in NYC and it was running for a bit but then stopped soon after getting it back. Took it back in and was told I probably didn't fully wind it. Wound it and again it ran for a while but now is not running and cannot be wound as the crown will not turn forward and I can feel some tension if I try. Possible it was overwound or some other issue with main spring?
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