Omega · Automatic
Caliber 1120
The Omega caliber 1120 is an automatic movement found in some Omega Seamaster Pro 300M watches from the mid 1990s (1996?). Technical documentation was found dated May 1995. This movement can be found in both the full-size 41mm and the mid-size 36mm SMP models. The 1120 is essentially based on the ETA caliber 2892-A2 framework. It has 21 jewels with a beat rate of 28,800 bph, 4Hz.
Technical Specifications
Winding
Automatic
Power Reserve
42 hours
Frequency
28,800 vph (4 Hz)
Jewels
23
Diameter
25.6 mm
Height
3.6 mm
Watches with this movement(92)

Omega
Omega - 2256.80.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Electric Blue / Bracelet / Ian Thorpe
Ref. 2256.80.00 · 41 mm

Omega
Omega - 2531.80.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Blue / Bracelet / James Bond
Ref. 2531.80.00 · 41 mm
Omega
Omega - 2251.50.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Black / Bracelet / Japan
Ref. 2251.50.00 · 41 mm
Omega
Omega - 2250.50.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Black / Bracelet / Japan
Ref. 2250.50.00 · 36.25 mm
Omega
Omega - 2251.80.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Blue / Bracelet / Japan
Ref. 2251.80.00 · 41 mm

Omega
Omega - 2552.80.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Blue / Bracelet
Ref. 2552.80.00 · 36.25 mm

Omega
Omega - 2830.50.91 Seamaster Diver 300M Automatic 41 Stainless Steel / White Gold / Black / Leather
Ref. 2830.50.91 · 41 mm

Omega
Omega - 4612.30.02 De Ville Prestige Automatic 36.5 Yellow Gold / Silver
Ref. 4612.30.02 · 36.5 mm
Omega
Omega - 2552.61.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Red / Bracelet / Marui
Ref. 2552.61.00 · 36.25 mm

Omega
Omega - 2232.80.00 Seamaster Diver 300M Automatic 41 Titanium / Electric Blue / Bracelet
Ref. 2232.80.00 · 41 mm

Omega
Omega - 2055.80.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Electric Blue / Bracelet
Ref. 2055.80.00 · 41 mm

Omega
Omega - 2453.50.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Yellow Gold / Black / Bracelet
Ref. 2453.50.00 · 36.25 mm

Omega
Omega - 2455.80.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Yellow Gold / Blue / Bracelet
Ref. 2455.80.00 · 41 mm

Omega
Omega - 2053.80.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Electric Blue / Bracelet
Ref. 2053.80.00 · 36.25 mm

Omega
Omega - 2233.50.00 Seamaster Diver 300M Automatic 41 Stainless Steel / White Gold / Black / Panama
Ref. 2233.50.00 · 41 mm

Omega
Omega - 2991.80.93 Seamaster Diver 300M Automatic 41 Titanium / Blue
Ref. 2991.80.93 · 41 mm

Omega
Omega - 2991.50.91 Seamaster Diver 300M Automatic 41 Titanium / Black
Ref. 2991.50.91 · 41 mm

Omega
Omega - 111.25.36.20.58.001 Constellation Automatic 36 Stainless Steel / Yellow Gold / Diamond / Champagne / 160 Years
Ref. 111.25.36.20.58.001 · 22.5 mm

Omega
Omega - 2257.80.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Electric Blue / Bracelet / Royal Navy
Ref. 2257.80.00 · 41 mm

Omega
Omega - 2455.50.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Yellow Gold / Black / Bracelet
Ref. 2455.50.00 · 41 mm

Omega
Omega - 1920.18.00 Constellation Automatic 35.5 '95 Yellow Gold / Observatory
Ref. 1920.18.00 · 35 mm

Omega
Omega - 4812.30.02 De Ville Prestige Co-Axial 36.5 Stainless Steel / Silver
Ref. 4812.30.02 · 36.5 mm

Omega
Omega - 1203.15.00 Constellation 35.5 Automatic Chronometer Stainless Steel / Yellow Gold / Champagne
Ref. 1203.15.00 · 35.5 mm

Omega
Omega - 111.20.36.10.52.001 Constellation Automatic 36 Stainless Steel / Yellow Gold / Beijing Olympics 2008
Ref. 111.20.36.10.52.001 · 22.5 mm

Omega
Omega - 111.25.36.10.52.002 Constellation Automatic 36 Stainless Steel / Red Gold / Diamond / Beijing Olympics 2008
Ref. 111.25.36.10.52.002 · 22.5 mm

Omega
Omega - 2230.50.00 Seamaster Diver 300M Automatic 41 Stainless Steel / White Gold / Black / Non-America's Cup
Ref. 2230.50.00 · 41 mm

Omega
Omega - 2252.50.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Black / Bracelet
Ref. 2252.50.00 · 36.25 mm

Omega
Omega - 2254.50.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Black / Bracelet
Ref. 2254.50.00 · 41 mm

Omega
Omega - 2232.30.00 Seamaster Diver 300M Automatic 41 Titanium / Grey / Bracelet / 150th Anniversary
Ref. 2232.30.00 · 41 mm

Omega
Omega - 2255.80.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Electric Blue / Bracelet
Ref. 2255.80.00 · 41 mm

Omega
Omega - 2537.80.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Blue / Bracelet / James Bond 40th Anniversary
Ref. 2537.80.00 · 41 mm

Omega
Omega - 2532.80.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Blue / Bracelet
Ref. 2532.80.00 · 41 mm

Omega
Omega - 2236.50.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / White Gold / Black / Bracelet
Ref. 2236.50.00 · 36.25 mm

Omega
Omega - 2231.80.00 Seamaster Diver 300M Automatic 41 Titanium / Electric Blue / Bracelet
Ref. 2231.80.00 · 41 mm

Omega
Omega - 2253.80.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Electric Blue / Bracelet
Ref. 2253.80.00 · 36.25 mm

Omega
Omega - 212.30.41.10.01.001 Seamaster Diver 300M Automatic 41 Stainless Steel / Black / Bracelet / SAS SFC
Ref. 212.30.41.10.01.001 · 41 mm

Omega
Omega - 2352.20.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Yellow Gold / White / Bracelet
Ref. 2352.20.00 · 36.25 mm

Omega
Omega - 2532.20.00 Seamaster Diver 300M Automatic 41 Stainless Steel / White / Bracelet
Ref. 2532.20.00 · 41 mm

Omega
Omega - 2352.80.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Yellow Gold / Blue / Bracelet
Ref. 2352.80.00 · 36.25 mm

Omega
Omega - 2833.50.91 Seamaster Diver 300M Automatic 41 Stainless Steel / White Gold / Black / Leather / America's Cup
Ref. 2533.50.00. · 41 mm

Omega
Omega - 2332.20.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Yellow Gold / White / Bracelet
Ref. 2332.20.00 · 41 mm

Omega
Omega - 2332.80.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Yellow Gold / Blue / Bracelet
Ref. 2332.80.00 · 41 mm

Omega
Omega - 2652.50.91 Seamaster Diver 300M Automatic 36.25 White Gold / Black / Rubber
Ref. 2652.50.91 · 36.25 mm

Omega
Omega - 1302.30.00 Constellation Automatic 35.5 Stainless Steel / Yellow Gold / Silver
Ref. 1302.30.00 · 35 mm

Omega
Omega - 2052.50.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Black / Bracelet
Ref. 2052.50.00 · 36.25 mm

Omega
Omega - 4500.50.00 De Ville Prestige Automatic 34.7 Stainless Steel / Black / Bracelet
Ref. 4500.50.00 · 34.7 mm

Omega
Omega - 4512.30.00 De Ville Prestige Automatic 36.5 Stainless Steel / Silver / Bracelet
Ref. 4512.30.00 · 36.5 mm

Omega
Omega - 4103.31.00 De Ville Prestige Automatic 31.2 Tonneau Yellow Gold / Silver / Bracelet
Ref. 4103.31.00 · 31.2 mm

Omega
Omega - 2636.50.91 Seamaster Diver 300M Automatic 41 Red Gold / Black / Rubber
Ref. 2636.50.91 · 41 mm

Omega
Omega - 2954.50.91 Seamaster Diver 300M Automatic 41 Stainless Steel / Black / Leather
Ref. 2954.50.91 · 41 mm

Omega
Omega - 2533.50.00 Seamaster Diver 300M Automatic 41 Stainless Steel / White Gold / Black / Bracelet / America's Cup
Ref. 2833.50.91. · 41 mm

Omega
Omega - 2551.80.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Blue / Bracelet
Ref. 2551.80.00 · 36.25 mm
Omega
Omega - 2250.80.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Blue / Bracelet / Japan
Ref. 2250.80.00 · 36.25 mm

Omega
Omega - 2231.50.00 Seamaster Diver 300M Automatic 41 Titanium / Black / Bracelet
Ref. 2231.50.00 · 41 mm

Omega
Omega - 2255.50.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Black / Bracelet / Maccabiah
Ref. 2255.50.00 · 41 mm

Omega
Omega - 2554.80.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Electric Blue / Bracelet
Ref. 2554.80.00 · 36.25 mm
Omega
Omega - 2531.86.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Blue / Bracelet / Non-Chronometer
Ref. 2531.86.00 · 41 mm

Omega
Omega - 2031.50.00 Seamaster Diver 300M Automatic 41 Titanium / Black / Bracelet
Ref. 2031.50.00 · 41 mm

Omega
Omega - 2152.50.00 Seamaster Diver 300M Automatic 36.25 White Gold / Black / Bracelet
Ref. 2152.50.00 · 36.25 mm

Omega
Omega - 2054.50.00 Seamaster Diver 300M Automatic 41 Stainless Steel / Black / Bracelet
Ref. 2054.50.00 · 41 mm

Omega
Omega - 2453.80.00 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Yellow Gold / Blue / Bracelet
Ref. 2453.80.00 · 36.25 mm

Omega
Omega - 2836.50.91 Seamaster Diver 300M Automatic 36.25 Stainless Steel / White Gold / Black / Leather
Ref. 2836.50.91 · 36.25 mm

Omega
Omega - 111.20.36.10.52.002 Constellation Automatic 36 Stainless Steel / Red Gold / Beijing Olympics 2008
Ref. 111.20.36.10.52.002 · 22.5 mm

Omega
Omega - 1304.35.00 Constellation Automatic 35.5 Stainless Steel - Red Gold / Silver - Diamond
Ref. 1304.35.00 · 35 mm

Omega
Omega - 1516.76.00 Constellation Automatic 35.5 Stainless Steel / MOP
Ref. 1516.76.00 · 35 mm

Omega
Omega - 1504.35.00 Constellation Automatic 35.5 Stainless Steel / Silver - Diamond
Ref. 1504.35.00 · 35 mm

Omega
Omega - 2501.31.00 Seamaster 120M Automatic 36.25 Stainless Steel / Silver
Ref. 2501.31.00 · 36.25 mm

Omega
Omega - 2501.81.00 Seamaster 120M Automatic 36.25 Stainless Steel / Blue
Ref. 2501.81.00 · 36.25 mm

Omega
Omega - 2501.51.00 Seamaster 120M Automatic 36.25 Stainless Steel / Black
Ref. 2501.51.00 · 36.25 mm

Omega
Omega - 2501.33.00 Seamaster 120M Automatic 36.25 Stainless Steel / Silver / Japan
Ref. 2501.33.00 · 36.25 mm

Omega
Omega - 2501.21.00 Seamaster 120M Automatic 36.25 Stainless Steel / White
Ref. 2501.21.00 · 36.25 mm

Omega
Omega - 2301.11.00 Seamaster 120M Automatic 36.25 Stainless Steel / Yellow Gold / Champagne
Ref. 2301.11.00 · 36.25 mm

Omega
Omega - 2301.21.00 Seamaster 120M Automatic 36.25 Stainless Steel / Yellow Gold / White
Ref. 2301.21.00 · 36.25 mm

Omega
Omega - 1102.10.00 Constellation Automatic 35.5 '95 Yellow Gold / Champagne
Ref. 1102.10.00 · 35 mm

Omega
Omega - 1900.11.51 Constellation Automatic 35.5 '95 White Gold / Year of the Snake
Ref. 1900.11.51 · 35 mm

Omega
Omega - 4600.11.02 De Ville Prestige Automatic 34.7 Yellow Gold / Champagne
Ref. 4600.11.02 · 34.7 mm

Omega
Omega - 1102.30.00 Constellation Automatic 35.5 '95 Yellow Gold / Silver
Ref. 1102.30.00 · 35 mm

Omega
Omega - 4800.30.02 De Ville Prestige Automatic 34.7 Stainless Steel / Silver
Ref. 4800.30.02 · 34.7 mm

Omega
Omega - 4503.51.00 De Ville Prestige Automatic 31.2 Tonneau Stainless Steel / Black / Bracelet
Ref. 4503.51.00 · 31.2 mm

Omega
Omega - 4600.30.02 De Ville Prestige Automatic 34.7 Yellow Gold / White
Ref. 4600.30.02 · 34.7 mm

Omega
Omega - 4300.31.00 De Ville Prestige Automatic 34.7 Stainless Steel / Yellow Gold / Silver / Bracelet
Ref. 4300.31.00 · 34.7 mm

Omega
Omega - 4503.31.00 De Ville Prestige Automatic 31.2 Tonneau Stainless Steel / Silver / Bracelet
Ref. 4503.31.00 · 31.2 mm

Omega
Omega - 4500.30.00 De Ville Prestige Automatic 34.7 Stainless Steel / Silver / Bracelet
Ref. 4500.30.00 · 34.7 mm

Omega
Omega - 1900.40.51 Constellation Automatic 35.5 '95 White Gold / Year of the Snake
Ref. 1900.40.51 · 35 mm

Omega
Omega - 4800.50.01 De Ville Prestige Automatic 34.7 Stainless Steel / Black
Ref. 4800.50.01 · 34.7 mm

Omega
Omega - 2136.50.00 Seamaster Diver 300M Automatic 41 Red Gold / Black / Bracelet
Ref. 2136.50.00 · 41 mm

Omega
Omega - 4100.11.00 De Ville Prestige Automatic 34.7 Yellow Gold / Champagne / Bracelet
Ref. 4100.11.00 · 34.7 mm

Omega
Omega - 4100.30.00 De Ville Prestige Automatic 34.7 Yellow Gold / White / Bracelet
Ref. 4100.30.00 · 34.7 mm

Omega
Omega - 4312.21.00 De Ville Prestige Automatic 36.5 Stainless Steel / Yellow Gold / Silver / Bracelet
Ref. 4312.21.00 · 36.5 mm

Omega
Omega - 2952.50.91 Seamaster Diver 300M Automatic 36.25 Stainless Steel / Black / Rubber
Ref. 2952.50.91 · 36.25 mm

Omega
Omega - 2131.20.00 Seamaster Diver 300M Automatic 41 Yellow Gold / White / Bracelet
Ref. 2131.20.00 · 41 mm

Omega
Omega - 4100.31.00 De Ville Prestige Automatic 34.7 Yellow Gold / White / Bracelet
Ref. 4100.31.00 · 34.7 mm
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