I was in a hurry this morning, and I think I ended up over-winding my Seagull 1963. I noticed a few hours later that the watch wasn't running, and when I reset the second hand, it went back to 12 o'clock, but would not budge. When I try to rewind, it unwinds ever so slowly, which is what led me to believe I overwound.
I'm thinking that perhaps the mainspring was damaged, but I'm not sure.
Any thoughts on what could be wrong? Is the watch salvage-able, or is it beyond repair?