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Omega 1120

The Omega 1120 is a mechanical movement with automatic winding, ball-bearing rotor, hacking seconds, power reserve 44 hours. It is based on the popular ETA 2892-A2 calibre and was the predecessor of the Omega 2500 with co-axial escapement.

Used for example in the series Seamaster.

Cal. 1128

Calibre 1128 adds a 24 hour hand.

Cal. 2400

Calibre 2400 is a skeletonized version of Cal. 1120 with no date function.

Cal 2401

Calibre 2401 is a skeletonized version of Cal. 1120 with no date function in yellow gold.





  • 11½ lignes
  • D ? mm, H ? mm
  • 23 jewels
  • 28,800 A/h
  • Power reserve 44h

Production period:

  • ?
omega_1120.txt · Last modified: 02.12.2022 20:38 by

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