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Omega Calibre 321 Movement Specifications, Beat Rate & Dimensions

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Home > Omega > Calibre 321

Technical Caliber Datasheet

ManufacturerOmega
Caliber ReferenceCalibre 321
Movement TypeLateral Clutch Chronograph
Diameter (Lignes)12'''
Diameter (mm)27.0
Movement Thickness6.74
Jewel Count17 Jewels
Vibrations Per Hour18,000 BPH (2.5 Hz)
Balance Lift Angle50°
Power Reserve44 hours
Escapement TypeColumn wheel chrono
Shock Protection SystemIncabloc
Production Era1942-1968
Wristwatch Conversion RatingSpeedmaster Moonwatch Caliber

Historical & Mechanical Notes

The Omega Calibre 321 is revered among horologists for its mechanical architecture and precision timing characteristics. Operating with an oscillation rate of 18,000 BPH and a 50° lift angle, this movement exemplifies vintage fine watchmaking standards.

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