Omega calibres

by Stephen Foskett (Grail Watch)

Omega is a long-running watch manufacturer who has used many different watch movements, both in-house and from other manufacturers.

Ebauche Calibres

Time-Only

The following Omega calibres use an ebauche from another manufacturer.

Omega 651 - ETA 7001 Ultra-thin hand-winding
Omega 700 - Piguet 21 Ultra-thin hand-winding
Omega 725 - ETA 2000 Compact automatic
Omega 960 - Unitas 6497 Hand-winding
Omega 980 - (1969-) Lemania 2980, Omega Memomatic
Omega 1108 - ETA 2892-2
- Omega 1109 - ETA 2892-A2
- Omega 1110 - ETA 2892-A2
- Omega 1111 - ETA 2892-A2
Omega 1116 - ETA 2891-9
- Omega 1118 - ETA 2891-A9
Omega 1119 - ETA 2892-2
Omega 1120 - ETA 2892-A2
- Omega 1128 - ETA 2892-A2 GMT
- Omega 2400 - Skeleton Omega 1012 Yellow Gold Plated (Note See also the unrelated Omega Megaquartz 2400)
  - Omega 2401 - Skeleton Omega 1012 White Rhodium Plated
Omega 2200 - ETA 2895-2
Omega 2300
Omega 1221 - ETA 2892-A2
Omega 2201 - ETA 6498-1
- Omega 2211 - ETA 6498-1
Omega 2520 - ETA 2000-1 Automatic movement with date
Omega 2601 - Piguet 6763-4 Full calendar, moon phase, two barrels

Chronograph

The following Omega calibres use an ebauche from another manufacturer.

Omega 321 - Lemania 2310/Lemania 2320 Hand-winding chronograph
Omega 860 - Lemania 1872 Hand-winding chronograph
- Omega 861 - Lemania 1873
  - Omega 1861 - Lemania 1873 Rhodium Plated Version of c.861
- Omega 862 - Lemania 1873
- Omega 863 - Lemania 1873
  - Omega 1863 - Lemania 1873 Rhodium Plated Version of c.863
- Omega 864 - chronometer
- Omega 866 - Lemania 1883
  - Omega 1866 - Lemania 1874 Rhodium Plated Version of c.866
- Omega 3604 - Lemania 1884 Skeletonized hand-winding chronograph, moon phase
Omega 1040 - (1971-1974) Lemania 1340
- Omega 1041 - (1973) Lemania 1341, chronometer
Omega 1045 - (1974-1980's) Lemania 5100
Omega 1138 - ETA 2890-A2 & Dubois Dépraz DD 2030 chronograph module for 1997 Omega Dynamic Chronograph
Omega 1140 - ETA 2890-2 & Dubois Dépraz DD 2020 chronograph module, gold plated, for Omega Speedmaster Reduced
- Omega 1141 - ETA 2890-2 & Dubois Dépraz DD 2020 chronograph module, rhodium plated, for 1996 Omega Speedmaster Reduced
  - Omega 1143 - ETA 2890-A2 & Dubois Dépraz DD 2020 chronograph module for 1997 Omega Speedmaster Reduced
    - Omega 3220 - ETA 2892-A2 with Dubois Dépraz DD 2020 chronograph module for 2000 (3220A since 2003)
Omega 1150 - ETA 7751 Automatic chronograph, full calendar, moon phase, gold plated
- Omega 1151 - ETA 7751 rhodium plated since 1996
Omega 1155 - ETA 7750 Automatic chronograph, gold plated
- Omega 1152 - ETA 7750 rhodium plated since 1996
- Omega 1154 - ETA 7750
- Omega 1156 - ETA 7750
- Omega 1158 - ETA 7750
- Omega 1164 - ETA 7750
Omega 3301 - Piguet 1285 Column wheel chronograph
- Omega 3303 - Piguet 1285 Column wheel chronograph, highly decorated
  - Omega 3320 - Piguet 1285 Column wheel chronograph, elaborate decoration
  - Omega 3321 - Piguet 1285 Column wheel chronograph, skeletonized
Omega 3304 - Valjoux 7753 Automatic chronograph, date
Omega 3600 - (1999-2002) Valjoux 7750 Automatic split seconds chronograph
Omega 3601 - ETA 2892-A2 with Dubois Dépraz DD 2029 chronograph module with 14-mintue dive timer
Omega 3602 - ETA 2892-A2 with Dubois Dépraz DD 2027 chronograph module with regatta timer
Omega 3606 - ETA 7751

Quartz Calibres

Omega 1270 - Piguet 1270 Meca-Quartz
Omega 1310 - Omega Megaquartz
Omega 1376 - ETA 280.002
Omega 1378 - ETA-ESA 210.001
- Omega 1379 - ETA-ESA 210.011
- Omega 1479 - ETA 210.011
Omega 1380 - ETA-ESA 956.032
Omega 1400 - ETA 205.111 ETA “Autoquartz”/Omega Omatic, rhodium Plated
Omega 1420 - ETA-ESA 955.411
- Omega 1422 - ETA-ESA 955.411
Omega 1438 - ETA 255.461 - Omega Seamaster Professional Quartz
Omega 1424 - ETA 256.461 Omega Seamaster Ladies Quartz
- Omega 1426 - ETA 256.111 Yellow Gold Plated
Omega 1456 - ETA 976.001
Omega 1471 - ETA 282.001
Omega 1611 - Omega Chronoquartz
Omega 1620 - Omega Speedmaster Quartz
Omega 1665 - ETA 988.431
Omega 1680 - ETA 252.511
Omega 4061
Omega 4561
Omega 4564

Electronic Calibres

Omega 1250 - ETA-ESA 9162 (Omega Seamaster Electronic f300MHz, Omega Constellation f300Hz, Omega Constellation f2.4MHz, Omega De Ville Chronometer 300Hz)
- Omega 1255 - ETA-ESA 9164 (Omega Seamaster Electronic f300MHz, Omega Constellation f300Hz, Omega Constellation f2.4MHz)
- Omega 1260 - ETA-ESA 9164

In-House Calibres

30 mm

Omega 265
- Omega 266
- Omega 269
Omega 283 - Omega Century
- Omega 284
- Omega 286

First-Generation Bumper Automatic

Omega 330 (1943-) 30.1 mm, sub seconds, bumper automatic
- Omega 331 (1947-) antimagnetic chronometer
  - Omega 332 (1949-) update
- Omega 333 excentric regulator
Omega 340 28.1 mm, sub seconds, bumper automatic, chronometer
- Omega 341 jubilee edition
- Omega 342 update, first Omega Seamaster calibre, identical to Omega 28.10 RA PC but concealed buffer springs
  - Omega 344 (1953-) update
- Omega 343 (1950-) chronometer, excentric regulator
Omega 350 (1950-) 28.1 mm, sweep seconds, bumper automatic
- Omega 351 (1949-) update
  - Omega 354 (1953-) update, identical to Omega 342 but added swan neck regulator, chronometer
- Omega 352 (1950-) chronometer, excentric regulator
- Omega 353 (1951-) date
  - Omega 355 (1953-) update

Second-Generation Automatic

Omega 450 (1955-) Ladies
- Omega 455 (1955-) Ladies
Omega 470 (1955-) 25 mm, full rotor, 17 jewels, first Omega with bi-directional winding
- Omega 471 (1955-) 19 or 20 jewels, first full-rotor automatic
Omega 490 (1956-) 28 mm, sub seconds, 17 jewels, first Omega with bi-directional winding
- Omega 491 (1956-) 19 jewels
Omega 500 (1956-) 28 mm, sweep seconds, 17 jewels
- Omega 502 (1956-) date
- Omega 501 (1956-) 19/20 jewels, identical to Omega 471 but added swan neck regulator, Omega Globemaster
  - Omega 503 (1956-) 19/20 jewels date
- Omega 504 (1957-) 24 jewels date chronometer
- Omega 505 (1957-) 24 jewels

Third-Generation

Omega 550 (1959-) 28 mm
- Omega 560 (1959-) date, chronometer?
- Omega 551 (1959-) 24 jewels chronometer
  - Omega 561 (1959-) 24 jewels date chronometer
- Omega 552 (1959-) 24 jewels, Omega Railmaster
  - Omega 562 (1959-) 24 jewels date, chronometer?
Omega 563 (1966-) date, chronometer?
- Omega 750 (1967-) day/date
- Omega 564 (1966-) 24 jewels date chronometer
  - Omega 751 (1967-) 24 jewels day/date chronometer
- Omega 565 (1966-) 24 jewels, date
  - Omega 752 (1967-) 24 jewels, day/date
Omega 570 (1959-)
- Omega 571 (1959-)
Omega 590 (1960-)
- Omega 591 (1960-)
- Omega 592 (1960-)
- Omega 593 (1960-)
Omega 600 manual wind
- Omega 610 manual wind date
- Omega 601 manual wind
  - Omega 611 manual wind date
- Omega 602 manual wind chronometer
  - Omega 613 manual wind chronometer date
Omega 660 (1963-)
- Omega 661 (1963-)
Omega 670 (1963-)
- Omega 671 (1963-)
- Omega 672 (1968-) chronometer
Omega 680 (1963-)
- Omega 681 (1963-)
- Omega 682 (1968-) chronometer
- Omega 683 (1971-)
- Omega 684 (1971-)
- Omega 685 (1971-)
Omega 710 (1966-)
- Omega 711 (1966-)
- Omega 712 (1967-) chronometer

Fourth-Generation

Omega 1000 (1969-) 28,800 A/h, hacking, thin, poor reliability
- Omega 1001 (1969-) Chronometer
- Omega 1002 (1969-)
Omega 1010 (1972-) 28,800 A/h, hacking, thin, improved
- Omega 1020 day/date
- Omega 1011 Chronometer
  - Omega 1021 day/date chronometer
- Omega 1012
  - Omega 1022 day/date
- Omega 1030 manual wind date
- Omega 1035 manual wind

Modern Movements

Omega 1666 - Speedmaster quartz by ETA
Omega 2500 - (1999) ETA 2892-A2 automatic with first-ever Co-Axial escapement and 25,200 A/h
- Omega 2007 - (2007) Hand winding, Co-Axial escapement
- Omega 2202 - (2005) ETA 2895-2 Small seconds, Co-Axial escapement, Omega free-sprung balance
- Omega 2402 - Skeletonized, white rhodium plated, no date
- Omega 2403 - No date
- Omega 2507 - “Bullet” rotor decoration
- Omega 2610 - (2006) ETA 2896 Automatic with new Co-Axial escapement and big date
- Omega 2627 - Date, power reserve, Co-Axial
- Omega 2628 - Date, GMT, Co-Axial
Omega 2600 - (2002) Central tourbillion
- Omega 2633 - Skeletonized
- Omega 2635 - (2007) Co-Axial, PVD
  - Omega 2636 - Skeletonized
  - Omega 2637 - Diamond paved
  - Omega 2638 - Blue PVD
Omega 3313 - Piguet 1285 Column wheel chronograph, Co-Axial escapement, date
- Omega 3201 - Piguet 1285 Hand winding column wheel chronograph, free sprung balance, Co-Axial escapement
- Omega 3202 - Piguet 1285 Automatic column wheel chronograph, free sprung balance, Co-Axial escapement
- Omega 3203 - Piguet 1285 Hand winding column wheel chronograph, free sprung balance, Co-Axial escapement
- Omega 3205 - Piguet 1285 No date
- Omega 3113 - Piguet 1285 Column wheel chronograph, advanced Co-Axial escapement, free-sprung balance
- Omega 3603 - Piguet 1285 Column wheel chronograph, Co-Axial escapement, GMT
- Omega 3612 - Piguet 1286 Column wheel chronograph, Co-Axial escapement, rattrapante
Omega 3330 - (2012-) Valjoux 7753 Automatic column wheel chronograph, Co-Axial escapement, silicon hairspring, date
Omega 3888 - (2008) Co-Axial escapement, 5-register chronograph
- Omega 3890 - (2010) Automatic 4-register chronograph with date
Omega 8500 - (2007) Updated Co-Axial escapement automatic, replacement for the Omega 2500, 2-barrel automatic with date, free-spring balance
- Omega 8400 - No-date, silicon balance spring, magnetic resistant
  - Omega 8401 - Luxury finish
- Omega 8501 - 18k winding rotor and balance bridge
- Omega 8508 - Magnetic resistant
- Omega 8511 - Hand winding, magnetic resistant
- Omega 8601 - annual calendar with date and month at 3 00, silicon hairspring
  - Omega 8611 - 18k winding rotor and balance bridge
- Omega 8507
- Omega 8602 - Luxury finish
  - Omega 8612 - Luxury finish, gold rotor and bridge
- Omega 8605 - GMT
  - Omega 8615 - Luxury finish
Omega 8900 - (2015) Next-generation automatic movement (to replace 8500), magnetic resistant
- Omega 8901 - Luxury finish
  - Omega 8913 - No date
- Omega 8902 - Luxury finished, annual calendar
- Omega 8903 - Luxury finished, gold rotor and bridge, annual calendar
- Omega 8906 - GMT
- Omega 8912 - No date
- Omega 8922 - (2016) Annual calendar
  - Omega 8923 - Luxury finish, annual calendar
Omega 9300 - (2011) New LIGA escape wheel, silicon hairspring, 2 barrels, chronograph, column wheel, vertical clutch
- Omega 9301 - Luxury version, 18k winding rotor and balance bridge
- Omega 9605 - GMT
  - Omega 9615 - Luxury finish, gold rotor and bridge
- Omega 9900 - Automatic chronograph with date
  - Omega 9901
- Omega 9904 - Moonphase and subdial date
  - Omega 9905 - Luxury finish
Omega 8520 - (2010) Co-Axial ladies automatic with date
- Omega 8521 - (2010) Luxury finish, 18k winding rotor and balance bridge
- Omega 8421 - Luxury finish, no date
Omega 8704 - (2016) Ladies automatic
- Omega 8705
Omega 8800 - (2016) Automatic
- Omega 8801

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