I don't know much about this watch except it is a family heirloom. My dad's brother felt I should have it since I was the oldest grandson. It was made in the days when you chose the watch movement and case as separate pieces. The movement is from Illinois Watch Co. and the case is from Keystone. It lives under a glass dome on a shelf, so it doesn't get wound often, but it still runs if I wind it. I haven't quite gotten the regulation dialed in, but it is within a minute or so per day.
Grandpa's watch.
You wind it with a key from the back side.