I came across an old Gruen gold filled watch for 5 dollars. It's actually running very well. It's a square autowind. The movement is a 475 and the style is 640 from 1949. None of that really makes it interesting except for some marks inside the case, the marks a repair guy makes. One of the marks is a German swastika, very small but clear as day. I'm going to try to take a photo of it. I may have to set up my macro bellows to shoot it because it's so small. So now the mystery is why does a watch from 1949 have a swastika scratched inside the case?