The 'antique' shops have lots of stuff going back thru the decades, some stuff is pure junk (like old over-the-counter medications), however I've seen wind up watches there too. You can test to see if the spring works, or if you like the style and know a watch repair shop you trust, they could repair the insides for you. The really good stuff will be locked behind a display counter of course, but if you want something, you can usually find it in working condition.