I just got my set in the mail.
Both are slightly different. One movement is by Savoy watch co and the other is Wittnauer watch co. Very similar movements. Both hand wound, 17 jewel. The crowns are just screw in ornaments, not real crowns. I was hoping to wind these up and see if they'd actually move while I work them, but no luck. Very cool though. Ill have to take some pics on my shirt tonight.