Omega Speedmaster Moonwatch
Most Omega Speedmaster Moonwatch references take a 20 mm watch strap: 152 of 163. The lug width follows the case size: 39 mm case → 19 mm, 40 mm case → 19 mm, 42 mm case → 20 mm and 44 mm case → 21 mm.
Omega Speedmaster Moonwatch lug width by case size
163 references measured. Updated 2026-10-29.
| Case | Lug width | References | Watch strap attachment | For example |
|---|---|---|---|---|
| 39 mm | 19 mm | 6 | — | 311.10.39.30.01.001, 311.10.39.30.01.002, 311.50.39.30.01.001 |
| 40 mm | 19 mm · 20 mm on 1 | 4 | — | 311.30.40.30.01.001, 311.32.40.30.02.001, 311.33.40.30.02.001 |
| 42 mm | 20 mm | 150 | — | 3097.30.00, 310.20.42.50.01.001, 310.20.42.50.02.001 |
| 44 mm | 21 mm · 20 mm on 1 | 3 | — | 311.30.44.32.01.001, 311.33.44.32.01.001 |
References that take a different watch strap
- DD 145.0022: 20 mm, not the 19 mm of most 40 mm cases
- TA 345.0810: 20 mm, not the 21 mm of most 44 mm cases
Questions about the Omega Speedmaster Moonwatch
Do all Omega Speedmaster Moonwatch case sizes take the same watch strap?
No. The lug width changes with the case size: the 39 mm case takes 19 mm and the 42 mm case takes 20 mm. Check your case diameter before you buy.
Every Omega Speedmaster Moonwatch reference
- Speedmaster Moonwatch Professional Apollo 11 25th Anniversary3097.30.00
20 mm - Speedmaster Professional Moonwatch Apollo 11 50 Anniversary Stainless Steel / Moonshine Gold310.20.42.50.01.001
20 mm - Speedmaster Professional Moonwatch 3861 Stainless Steel - Moonshine Gold / Silver310.20.42.50.02.001
20 mm - Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink310.20.42.50.99.001
20 mm - Speedmaster Professional Moonwatch 3861 Stainless Steel - Moonshine Gold / Silver / Alligator310.23.42.50.02.001
20 mm - Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink / Alligator310.23.42.50.99.001
20 mm - Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Bracelet310.30.42.50.01.001
20 mm - Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Sapphire / Bracelet310.30.42.50.01.002
20 mm - Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman310.30.42.50.01.003
20 mm - Speedmaster Professional Moonwatch 3861 Stainless Steel / White / Sapphire / Bracelet310.30.42.50.04.001
20 mm - Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Fabric310.32.42.50.01.001
20 mm - Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Sapphire / Calf310.32.42.50.01.002
20 mm - Speedmaster Professional Moonwatch Apollo 13 50th Anniversary Snoopy310.32.42.50.02.001
20 mm - Speedmaster Professional Moonwatch 3861 Stainless Steel / White / Sapphire / Rubber310.32.42.50.04.001
20 mm - Speedmaster Professional Moonwatch 3861 Stainless Steel / White / Sapphire310.32.42.50.04.002
20 mm - Speedmaster Professional Moonwatch 3861 Canopus Gold - Diamond / Silver / Bracelet310.55.42.50.02.001
20 mm - Speedmaster Professional Moonwatch 3861 Sedna Gold - Diamond / Brown / Bracelet310.55.42.50.13.001
20 mm - Speedmaster Professional Moonwatch 3861 Sedna Gold - Ruby / Black - Ruby / Bracelet310.55.42.50.51.001
20 mm - Speedmaster Professional Moonwatch 3861 Canopus Gold - Ruby / Silver - Ruby / Bracelet310.55.42.50.52.001
20 mm - Speedmaster Professional Moonwatch 3861 Canopus Gold - Rainbow / Silver - Rainbow / Bracelet310.55.42.50.52.002
20 mm - Speedmaster Professional Moonwatch 3861 Canopus Gold - Sapphire / Silver - Sapphire / Bracelet310.55.42.50.52.003
20 mm - Speedmaster Professional Moonwatch 3861 Canopus Gold - Baguette / Silver - Diamond / Bracelet310.55.42.50.52.004
20 mm - Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Bracelet310.60.42.50.01.001
20 mm - Speedmaster Professional Moonwatch 3861 Canopus Gold / Silver / Bracelet310.60.42.50.02.001
20 mm - Speedmaster Professional Moonwatch 3861 Moonshine Gold / Green / Bracelet310.60.42.50.10.001
20 mm - Speedmaster Professional Moonwatch Apollo 11 50 Anniversary Moonshine Gold310.60.42.50.99.001
20 mm - Speedmaster Professional Moonwatch 3861 Moonshine Gold / Moonshine Gold / Bracelet310.60.42.50.99.002
20 mm - Speedmaster Professional Moonwatch 3861 Moonshine Gold / Moonshine Gold310.62.42.50.99.001
20 mm - Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Alligator310.63.42.50.01.001
20 mm - Speedmaster Professional Moonwatch 3861 Canopus Gold / Silver / Alligator310.63.42.50.02.001
20 mm - Speedmaster Professional Moonwatch 3861 Moonshine Gold / Green310.63.42.50.10.001
20 mm - Speedmaster 60th Anniversary311.10.39.30.01.001
19 mm - Speedmaster 60th Anniversary / Trilogy Box311.10.39.30.01.002
19 mm - Speedmaster Professional Moonwatch SpeedyTuesday Ultraman311.12.42.30.01.001
20 mm - Speedmaster Moonwatch 39.7 321311.30.40.30.01.001
19 mm - Speedmaster Professional Moonwatch 50th Anniversary311.30.42.30.01.001
20 mm - Speedmaster Professional Moonwatch Apollo 11 40th Anniversary311.30.42.30.01.002
20 mm - Speedmaster Professional Moonwatch Apollo 15 40th Anniversary311.30.42.30.01.003
20 mm - Speedmaster Professional Moonwatch Racing / TinTin311.30.42.30.01.004
20 mm - Speedmaster Professional Moonwatch Big Box / Bracelet311.30.42.30.01.005
20 mm - Speedmaster Professional Moonwatch Big Box / Bracelet / Sapphire311.30.42.30.01.006
20 mm - Speedmaster Professional Moonwatch RAID311.30.42.30.01.007
20 mm - Speedmaster Moonwatch Professional Loyalty Edition311.30.42.30.01.008
20 mm - Speedmaster Professional Moonwatch Apollo 17 45th Anniversary / Stainless Steel311.30.42.30.03.001
20 mm - Speedmaster Professional Moonwatch Chocolate / Bracelet311.30.42.30.13.001
20 mm - Speedmaster Professional Moonwatch Apollo-Soyuz 35th Anniversary311.30.42.30.99.001
20 mm - Speedmaster Professional Moonwatch Apollo 17 40th Anniversary311.30.42.30.99.002
20 mm - Speedmaster Professional Moonphase Aventurine / Bracelet311.30.44.32.01.001
21 mm - Speedmaster CK2998 Pulsometer311.32.40.30.02.001
19 mm - Speedmaster Professional Moonwatch Speedy Tuesday Edition311.32.42.30.01.001
20 mm - Speedmaster Professional Moonwatch Alaska Project311.32.42.30.04.001
20 mm - Speedmaster Professional Moonwatch Silver Snoopy Award311.32.42.30.04.003
20 mm - Speedmaster Professional Moonwatch Chocolate / Strap311.32.42.30.13.001
20 mm - Speedmaster CK2998311.33.40.30.02.001
19 mm - Speedmaster Professional Moonwatch Big Box / Strap311.33.42.30.01.001
20 mm - Speedmaster Professional Moonwatch Big Box / Sapphire311.33.42.30.01.002
20 mm - Speedmaster Moonwatch Anniversary Stainless Steel311.33.42.50.01.001
20 mm - Speedmaster Professional Moonphase Aventurine / Strap311.33.44.32.01.001
21 mm - Speedmaster 321 38.6311.50.39.30.01.001
19 mm - Speedmaster Professional Apollo 11 45th Anniversary311.62.42.30.06.001
20 mm - Speedmaster Moonwatch Professional Yellow Gold / Starmus311.63.42.03.01.001
20 mm - Speedmaster Professional Moonwatch Apollo XVII 45th Anniversary / Yellow Gold311.63.42.30.03.001
20 mm - Speedmaster Moonwatch Anniversary Red Gold311.63.42.50.01.001
20 mm - Speedmaster Moonwatch Anniversary Yellow Gold311.63.42.50.01.002
20 mm - Speedmaster Moonwatch Anniversary White Gold311.63.42.50.01.003
20 mm - Speedmaster Professional Moonwatch Apollo 11 40th Anniversary Platinum311.90.42.30.01.001
20 mm - Speedmaster Professional Moonwatch 321 Platinum / Black / Bracelet311.90.42.30.99.002
20 mm - Speedmaster Professional Moonwatch 321 Platinum / Black / Alligator311.93.42.30.99.001
20 mm - Speedmaster Professional Moonwatch Apollo XI 25th White Gold Bracelet3192.30.00
20 mm - Speedmaster Replica 57 Yellow Gold / Bracelet3193.50.00
20 mm - Speedmaster Professional Moonwatch Yellow Gold / Black / Bracelet / Jubilee Chronometer3194.50.00
20 mm - Speedmaster Professional Moonwatch Yellow Gold / Bracelet3195.50.00
20 mm - Speedmaster Professional Moonwatch Apollo - Soyuz 25th Anniversary3195.59.00
20 mm - Speedmaster Professional Moonwatch MIR 365 / Yellow Gold3197.50.00
20 mm - Speedmaster Professional Moonwatch Apollo 15 35th Anniversary3366.51.00
20 mm - Speedmaster Professional Moonwatch 30th Anniversary Apollo XI3560.50.00
20 mm - Speedmaster Professional Moonwatch Gemini IV 40th Anniversary3565.80.00
20 mm - Speedmaster Professional Moonwatch Apollo 11 35th Anniversary3569.31.00
20 mm - Speedmaster Professional Moonwatch Mitsukoshi3570.31.00
20 mm - Speedmaster Professional Moonwatch Japan Racing3570.40.00
20 mm - Speedmaster Professional Plexi / Bracelet3570.50.00
20 mm - Speedmaster Professional Galaxy Express3571.50.00
20 mm - Speedmaster Professional Moonwatch Plexi / See-Through3572.50.00
20 mm - Speedmaster Professional Moonwatch Sapphire Sandwich3573.50.00
20 mm - 20 mmSpeedmaster Professional Moonwatch Moon Flag3574.50.00
- Speedmaster Professional Apollo XVII Last Man3574.51.00
20 mm - Speedmaster Professional Broad Arrow Moonphase Stainless Steel / Ivory / Bracelet3575.20.00
20 mm - Speedmaster Professional Broad Arrow Moonphase Stainless Steel / Silver / Bracelet3575.30.00
20 mm - Speedmaster Professional Moonphase / Bracelet3576.50.00
20 mm - Speedmaster Professional Moonwatch From Moon to Mars3577.50.00
20 mm - Speedmaster Professional Moonwatch Snoopy Award3578.51.00
20 mm - Speedmaster Professional Moonwatch3590.50.00
20 mm - Speedmaster Professional Moonwatch Apollo XI 25th Anniversary Italy3592.50.00 I
20 mm - Speedmaster Professional Moonwatch Albino3593.20.00
20 mm - Speedmaster Replica 57 Stainless Steel / Black / Bracelet3594.50.00
20 mm - Speedmaster Professional Moonwatch Apollo XIII 25th3595.52.00
20 mm - Speedmaster Professional Moonwatch Apollo XIII 25th White3595.52.00 W
20 mm - Speedmaster Professional Missions Apollo 133597.02.00
20 mm - Speedmaster Professional Missions Gemini V3597.03.00
20 mm - Speedmaster Professional Missions Gemini VI3597.04.00
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
- LadyMatic 103
- Trésor 99
- Museum Collection 64
- Speedmaster Broad Arrow 45
- Speedmaster Reduced 45
- Railmaster 38
All Omega families → · Why the size changes inside a family →