Omega 266

Close-up of a copper Omega watch movement showing gears, screws, and intricate mechanical details.
Specifications
Brand
Caliber Number
266
Production Start Year
Unconfirmed
Production End Year
Unconfirmed
Lignes
13.3”’
Diameter
30.0 mm
Height
4.05 mm
Power Reserve
Frequency
18,000 bph (2.5 Hz)
Jewel Count
17
Escapement
Anti-Shock Device
Incabloc
Hand Count
3 (Hours, Minutes, Sub-Seconds)
Manufacture Region
Functions
Manual Winding, Small Seconds

Omega 266 Description

The Omega 266 is a widely produced manual-wind caliber from the 26x series, the small-seconds branch of the famed 30mm movement family. Produced from 1952-1958, it is a direct descendant of the original 30T2 caliber and predecessor to the Cal. 267. This robust and reliable workhorse powered a vast number of classic Omega dress watches with a traditional sub-seconds dial.