I purchased these in a lot of Omega service parts for my quartz Seamaster but they were all too big which leads me to believe they are for the automatic 2541.80 Seamaster. Please see photos for condition.
Black Bezel Insert For 41mm Omega Seamaster 300 Pro Diver Watch
Omega seamaster 300 hands 067PZ00008 For Cal 1538 New
Links For Omega Seamaster 300 Co Axial Mid Size Watch Ref 212.30.36.20.01.002
Omega Seamaster 300 GMT Chronometer Dial 2234.50 New Old
Omega Seamaster 300 steel bracelet link *Pre-Owned 20mm
Omega Seamaster Professional 300m Bezel Insert Blue Full-size Watch James Bond