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Omega 1481
Last updated: July 26, 2025
Brand
Caliber Number
1481
Production Period
1972 – 1980
Lignes
11 ½”’
Diameter
25.6 mm
Height
5.35 mm
Power Reserve
Unconfirmed
Frequency
21,600 bph (3 Hz)
Jewels
21
Escapement
Swiss Lever Escapement
Anti-Shock Device
Incabloc
Hand Count
3 (Hours, Minutes, Sweep Seconds)
Manufacture Region
Unconfirmed
Functions
Automatic Winding, Sweep Seconds, Push-Crown Quick-set Date
Omega 1481 Description
The Omega 1481 is an automatic caliber from the early 1970s, jointly developed with Tissot (who used it as Cal. 2481). It is a workhorse movement that powered many Seamaster and Geneve models. Its most distinctive feature is its quick-set date, which is operated by repeatedly pushing the crown inwards. The movement runs at a modern 21,600 bph.
