Omega 342

Close-up of a vintage Omega watch movement with visible gears, cogs, and engraved serial numbers.
Specifications
Brand
Caliber Number
342
Production Start Year
Unconfirmed
Production End Year
Unconfirmed
Lignes
12.5”’
Diameter
28.1 mm
Height
5.4 mm
Power Reserve
Frequency
19,800 bph (2.75 Hz)
Jewel Count
17
Escapement
Anti-Shock Device
Incabloc
Hand Count
3 (Hours, Minutes, Sub-Seconds)
Manufacture Region
Functions
Automatic “Bumper” Winding, Small Seconds

Omega 342 Description

The Omega 342 is the workhorse “bumper” automatic caliber featuring a classic small sub-seconds display. Produced from 1949-1953, it was the standard non-chronometer version, counterpart to the chronometer-grade Cal. 344. This robust movement powered a vast number of Omega automatics, including many early Seamasters, offering the convenience of self-winding with a traditional dial layout.