Omega caliber 3304

Omega Caliber 3304

Brand Omega
Caliber Number 3304
Base Caliber ETA/Valjoux 7750
Movement Type Automatic
Jewels 27
Power Reserve 48 hours
Vibrations Per Hour 28,800
Diameter 30mm
Height 7.9mm
Chronometer (COSC) Yes
Balance Glucydur / Etachron
Features Hours, minutes, central chronograph seconds, small seconds, minutes counter, 12 hours counter, date
Country of Manufacture Switzerland
Known Models 323.

Released in November of 2009, the Omega caliber 3304 is based on the ETA 7750 (unlike 3301, 3303, 3313 that were based on column wheel Piguet movements). This automatic chronograph movement is used in the Speedmaster Date (Ref: 323. It replaced the previous caliber 1164.

From ChronoScot on watchuseek:

The newer cal 3304 has one specific technical difference to the cal 1164 that might have a slight bearing on your choice – the date of the cal 3304 is adjusted using a push button at the 10 o’clock position, while the cal 1164 uses the regular crown adjustment. I don’t believe that one is better than the other, it’s rather just a matter of preference on whether you want to use a pen or similar to change the date.

Omega caliber 3304

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