I picked up this beat up key wind/key set 1882 Elgin yesterday for a reasonable price and decided to take a crack at it. The case isn't too great and even though it is coin silver, I may see if I have another case for it. One reason to leave it in this case is because it is a hunter movement. The watch was not running and it seemed there was a problem with the mainspring.
Anyway, here are some before pics.
After taking it apart and cleaning it I can see the mainspring just fell off it's arbor (see pic). That was a relief...
After putting it all back together it runs great and the case doesn't look too bad, but I still may recase it.
I really love bringing these oldies back to life! I also fixed an anniversary clock a friend gave me that really came out nice... maybe I shoot a pic of that later.