Omega Caliber 3330 Watch Movement

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Brand	Omega
Caliber Number	3330
In-House?	No
Base Caliber:	See below…
Movement Type	Automatic chronograph, self-winding mechanical
Chronometer Spec?	Yes
COSC?	Yes
Lignes	13.25”’
Diameter	30mm
Height	7.9mm (unconfirmed)
Jewel Count	Thirty-one (31)
Beat Rate	28,800 vph, 4 Hz
Lift Angle	Unconfirmed
Power Reserve	52 hours
Rotor Style	Ball-bearing
Rotor Winding Direction	Uni-directional
Hand-Windable?	Yes
Anti-Shock Device	Nivachoc
Balance Wheel	Free sprung
Balance Spring	Si14 silicon
Escapement	Co-Axial
Chronograph System	Column wheel
Chronograph Layout	3-6-9
Hand Count	6
Functions	Central hours; central minutes; central chronograph seconds; small running seconds subdial at 9:00; 30 minutes chronograph counter at 3:00; 12 hours chronograph counter at 6:00; date at 6:00
Hacking Seconds?	Yes
Country of Manufacture	Switzerland, Swiss made
Known Models	Omega Speedmaster 38 (ref: 324.30.38.50.01.001), Omega Seamaster Chronograph (ref: 212.30.42.50.01.001) (Add your watch to the comments below…)

The Omega caliber 3330 is an automatic column wheel chronograph watch movement with a silicon hairspring (balance spring) and Omega’s Co-Axial escapement. This movement is a tri-compax chronograph with a 3-6-9 layout, meaning that the subdials are arranged at 3:00, 6:00, and 9:00.

Base Movement:

Before the Omega 3330 was the Longines calibre L688.2, which is used as the basis for the 3330. Modifications to the L688 framework result in the Omega 3330.

The base of the L688 is the ETA A08.L01 – which is based on the ETA caliber 7753. This is the 3-6-9 layout version of the ETA 7750.