Omega caliber 501
|Hands:||Hours, Minutes, Seconds|
|Additionals:||Chronometer, Co-Axial Escapement|
Omega caliber 501 is a self-winding movement with central seconds that was in production from the mid-1950's until the start of the 1960's. It is available in several variations. Jewel count can vary between 19 and 20.