Technical SpecificationsMovement 

Type: Hand-wound mechanicalCaliber (diameter): 24 mm

Movement thickness: 4.3 mm

Number of jewels: 17 ruby jewels

Power reserve: At least 34–43 hours 

Balance wheel oscillation period: 0.4 s 

Balance assembly: Shock-absorbing device, metal screwless balance wheel 

Hands: Central seconds, hour, and minute hands