Most visitors online was 4107 , on 14 Jan 2023
thankyou for your helpYour movement appears to have been made by Cyma. Produced from around 1910 - 1920.
From Ranfft: 19'''7 / 970 / 971: just separate cock for escape wheel.
bidfun-db Archive: Watch Movements: Cyma 19'''7
www.ranfft.de
bidfun-db Archive: Watch Movements: Cyma 19'''B
www.ranfft.de
thankyou so much for replyWelcome to our forum.
The watch movement is Swiss. The case probably has a set of punch marks on it that can provide a date and place where it gold content was certified. Photos of these are hard to do but provide very detailed information if they are present,
We have experts here who will probably identify the movement maker
Russel was a fine supplier of watches