The was one of the movements used in World War 2 in watches for the Luftwaffe.
This is a movement from the 1930’s. My late father was a watchmaker from 1960 to his death in 1996. I've been listing on ebay some of the watch material he left.
I am not a watchmaker but just looked at the movement carefully under a loupe.
I have listed a few other movements. I AM SELLING THIS AT EXTREMELY LOW PRICE. ASSUME YOU ARE BUYING OLD BROKEN WATCH MOVEMENTS FOR PARTS. Watch movements are not for “handy” people who think can “pop out’” old movement and replace with movement they got on ebay. They are only of value to someone qualified to repair watches.