Omega Caliber 1120
Omega Caliber 1120

Omega Caliber 1120

The Omega caliber 1120 is an automatic movement found in some Omega Seamaster Pro 300M watches from the mid 1990s (1996?). This movement can be found in both the full-size 41mm and the mid-size 36mm SMP.

The 1120 is essentially based on the ETA caliber 2892-A2 framework. It has a beat rate of 28,800 4Hz, 21 jewels and a power reserve of 44 hours. This movement has a quickset date, hacking seconds, and can be hand-wound.

This movement replaced the Omega caliber 1109.

Note: This caliber listing is still being updated, but feel free to start discussions on it in the comments below…

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4 months ago

I got my Omega Seamaster Pro 300, a very unusual style with Roman Sword hands and sinthetic wrist band with hidden clasp, in Berlin at Wempe Friedrichstraße in August 2000, now almost 23 years to the date. The Vereinigung still fresh, DM the official currency; the Euro still a reference that wouldn’t come in circulation until next year and the €/$ exchange rate at just 0.92, the window 1,200€ price, converted from DM, came to… Read more »

2 months ago

It’s 23 jewels and what makes it COSC certified.

Venus Caliber 178
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