zOwie Omega Discussion Forum

The Seamaster America’s Cup Chronographs 2594.50.00 and 2593.50.00 are discontinued and have been replaced by the Seamaster “Non-America’s Cup” Chronograph 2594.52.00 and 2593.52.00. They no longer have America’s Cup on the dial, but instead that line reads 300m/1000ft. The only other difference I know of is Omega is now using Caliber 3301 rather than Caliber 3303. Cal 3301 is less decorated than 3303, but is mechanically and functionally the same.

Known Omega Caliber 33xx differences.

3300 - Does Not Exist. It is a number that was used in the development phase of the movement.
3301 - Automatic, Date, COSC, Standard Finishing/Decor
3303 - Automatic, Date, COSC, Luxury Finishing/Decor
3313 - Co-Axial Escapement, Automatic, Date, COSC, Luxury Finishing/Decor
3320 - Automatic, Date, COSC, Luxury Finishing/Decor with Gold Medalion set in the cut out SS Rotor, and Blued Screws.

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March 24, 2004

Dear Omega,

Can you please tell me what the difference between Caliber 3303 and 3301 is? I've noticed that some new models get Caliber 3301, such as the Broad Arrow Racing Chronograph Ref. 3552.59.00 and the Seamaster Chronograph Ref. 2594.52.00. I would like to know why the change.

Thank you for your assistance.

Keith Downing

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March 30, 2004

Dear Mr Downing,

We thank you for your e-mail and for your interest shown in our brand.

Calibres 3303 and 3301 are technically identical (same functions). The difference is that calibre 3303 is a more exclusive version, meaning that the finishing of the bridges and main plate of calibre 3303 are aesthetically more luxury (circle graining, wave finishing) than calibre 3301.

We hope to have been helpful to you and remain,
with kind regards,

OMEGA Ltd
Xxxxx Xxxxxxxxxxx
Customer Service
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