Lowy 17 Jewels Hand Wind A. Schild Caliber 1187
The fiber on the ratchet wheel (the
biggest wheel in the picture) ...
must from one of the many times I had opened the movement during our USA trip in 2006. You can say whatever you want about the Swiss watch industry, but in the 40ies and 50ies, they were real masters of economically producing beautiful wrist watch movements for little money.