Omega Speedmaster Chronoscope
Every Omega Speedmaster Chronoscope reference takes a 21 mm watch strap: all 11 we measured.
Omega Speedmaster Chronoscope lug width by case size
11 references measured. Updated 2026-10-29.
| Case | Lug width | References | Watch strap attachment | For example |
|---|---|---|---|---|
| 43 mm | 21 mm | 11 | — | 329.30.43.51.02.001, 329.30.43.51.02.002, 329.30.43.51.03.001 |
Every Omega Speedmaster Chronoscope reference
- Speedmaster Chronoscope Master Chronometer Stainless Steel / Silver / Bracelet329.30.43.51.02.001
21 mm - Speedmaster Chronoscope Master Chronometer Stainless Steel / Panda / Bracelet329.30.43.51.02.002
21 mm - Speedmaster Chronoscope Master Chronometer Stainless Steel / Blue / Bracelet329.30.43.51.03.001
21 mm - Speedmaster Chronoscope Master Chronometer Stainless Steel / Silver / Calf329.32.43.51.02.001
21 mm - Speedmaster Chronoscope Master Chronometer Stainless Steel / Blue / Calf329.32.43.51.03.001
21 mm - Speedmaster Chronoscope Master Chronometer Stainless Steel / Silver / Alligator329.33.43.51.02.001
21 mm - Speedmaster Chronoscope Master Chronometer Bronze Gold329.92.43.51.10.001
21 mm - Speedmaster Chronoscope Master Chronometer Olympic Games Paris 2024 Stainless Steel / Silver / Bracelet522.30.43.51.02.001
21 mm - Speedmaster Chronoscope Master Chronometer Olympic Games Paris 2024 Stainless Steel / Silver522.32.43.51.02.001
21 mm - Speedmaster Chronoscope Master Chronometer Olympic Games Paris 2024 Moonshine Gold / Silver / Bracelet522.60.43.51.02.001
21 mm - Speedmaster Chronoscope Master Chronometer Olympic Games Paris 2024 Moonshine Gold / Silver522.62.43.51.02.001
21 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 →