OMEGA, Speedmaster, chronograph Case size: 42 mm Material: steel Movement: manual, caliber 321 Year: circa 1966 Crystal: plastic crystal Bracelet: leather strap Reference number: ST 105.012 Serial number: 24.006.020 Case number: 105.012-65 (HF) For detailed condition report, please contact specialist. The movement is running at the time of cataloguing, Bukowski’s does not guarantee the future working of the movement and please note that a service may be required, at buyer’s expense.