Omega Speedmaster '57
Every Omega Speedmaster '57 reference takes a 20 mm watch strap: all 26 we measured.
Omega Speedmaster '57 lug width by case size
26 references measured. Updated 2026-10-29.
| Case | Lug width | References | Watch strap attachment | For example |
|---|---|---|---|---|
| 40 mm | 20 mm | 1 | — | 332.12.41.51.01.001 |
| 41 mm | 20 mm | 7 | — | 332.10.41.51.01.001, 332.10.41.51.03.001, 332.10.41.51.10.001 |
| 42 mm | 20 mm | 18 | — | 331.10.42.51.01.001, 331.10.42.51.01.002, 331.10.42.51.02.002 |
Every Omega Speedmaster '57 reference
- Speedmaster 57 Co-Axial Stainless Steel / Black / Bracelet331.10.42.51.01.001
20 mm - Speedmaster 57 Co-Axial Stainless Steel / Black Vintage / Bracelet331.10.42.51.01.002
20 mm - Speedmaster 57 Co-Axial Stainless Steel / Silver / Bracelet331.10.42.51.02.002
20 mm - Speedmaster 57 Co-Axial Stainless Steel / Blue / Bracelet331.10.42.51.03.001
20 mm - Speedmaster 57 Co-Axial Stainless Steel / Black331.12.42.51.01.001
20 mm - Speedmaster 57 Co-Axial Stainless Steel / Black Vintage331.12.42.51.01.002
20 mm - Speedmaster 57 Co-Axial Stainless Steel / Silver331.12.42.51.02.002
20 mm - Speedmaster 57 Co-Axial Stainless Steel / Blue331.12.42.51.03.001
20 mm - Speedmaster 57 Co-Axial Stainless Steel / Red Gold / Black / Bracelet331.20.42.51.01.002
20 mm - Speedmaster 57 Co-Axial Stainless Steel / Yellow Gold / Silver / Bracelet331.20.42.51.02.001
20 mm - Speedmaster 57 Co-Axial Stainless Steel / Red Gold / Black331.22.42.51.01.001
20 mm - Speedmaster 57 Co-Axial Yellow Gold / Silver / Bracelet331.50.42.51.02.001
20 mm - Speedmaster 57 Co-Axial Red Gold / Silver / Bracelet331.50.42.51.02.002
20 mm - Speedmaster 57 Co-Axial Yellow Gold / Rory McIlroy / Bracelet331.50.42.51.08.001
20 mm - Speedmaster 57 Co-Axial Yellow Gold / Silver331.53.42.51.02.001
20 mm - Speedmaster 57 Co-Axial Red Gold / Silver331.53.42.51.02.002
20 mm - Speedmaster 57 Co-Axial Titanium / White / Bracelet331.90.42.51.04.001
20 mm - Speedmaster 57 Co-Axial Titanium / White331.92.42.51.04.001
20 mm - Speedmaster 57 Master Chronometer 40.5 Stainless Steel / Black / Bracelet332.10.41.51.01.001
20 mm - Speedmaster 57 Master Chronometer 40.5 Stainless Steel / Blue / Bracelet332.10.41.51.03.001
20 mm - Speedmaster 57 Master Chronometer 40.5 Stainless Steel / Green / Bracelet332.10.41.51.10.001
20 mm - Speedmaster 57 Master Chronometer 40.5 Stainless Steel / Red / Bracelet332.10.41.51.11.001
20 mm - Speedmaster 57 Master Chronometer 40.5 Stainless Steel / Black332.12.41.51.01.001
20 mm - Speedmaster 57 Master Chronometer 40.5 Stainless Steel / Blue332.12.41.51.03.001
20 mm - Speedmaster 57 Master Chronometer 40.5 Stainless Steel / Green332.12.41.51.10.001
20 mm - Speedmaster 57 Master Chronometer 40.5 Stainless Steel / Red / Bracelet332.12.41.51.11.001
20 mm
Other Omega families
Inside each one the lug width often changes: it is the reference that decides.
- Constellation 945
- De Ville 754
- Aqua Terra 584
- Seamaster Diver 300M 272
- Seamaster Planet Ocean 242
- Speedmaster (Non-Moonwatch) 196
- Speedmaster Moonwatch 163
- LadyMatic 103
- Trésor 99
- Museum Collection 64
- Speedmaster Broad Arrow 45
- Speedmaster Reduced 45
All Omega families → · Why the size changes inside a family →