Hi, I have a 1950/60s Enicar (Seapearl, Automatic, 25 Jewels)or at least it is what the face says. The movement inside is marked as a "Sigma" and has the sigma mark and a pic of a tiger. Did Enicar ever use a sigma movement or do I the incorrect auto winder plate or someones imaginative update. The workings certainly line up with the date aperture in the face is in line
The movement rotor probably was replaced at some time with a rotor from another watch. Likely the jewel bearing on the original rotor had cracked due to a shock.