The Omega caliber 1109 is an automatic movement found in some Omega Seamaster Pro 300M watches from the early 1990s (1993?). This movement can be found in both the full-size 41mm and the mid-size 36mm SMP. The 1109 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 was later replaced by the Omega caliber 1120 in the mid to late 90s (1996?).

18 other watches in the library run the Omega 1109.

Omega - 2452.80.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Yellow Gold / Blue / Bracelet

Ref. 2452.80.00 · 36.25 mm

Omega - 2432.20.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Yellow Gold / White / Bracelet

Ref. 2432.20.00 · 41 mm

Omega - 2151.20.00 Seamaster Diver 300M Automatic 36.25 Yellow Gold / White / Bracelet

Ref. 2151.20.00 · 36.25 mm

Omega - 2452.20.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Yellow Gold / White / Bracelet

Ref. 2452.20.00 · 36.25 mm