Omega
Omega Speedmaster '57 Co-Axial Chronograph 41.5 331.10.42.51.01.002
The Omega Speedmaster '57 Co-Axial Chronograph 41.5 (reference 331.10.42.51.01.002) is a 41.5 mm stainless steel watch with a black dial. It runs on the automatic caliber 9300 with a 60-hour power reserve and is water resistant to 100 m. It was made from 2015 to 2021.
Specifications
Case
- Reference
- 331.10.42.51.01.002
- Collection
- Speedmaster
- Case size
- 41.5 mm
- Thickness
- 16.5 mm
- Case material
- Stainless steel
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 100 m
- Bracelet / strap
- Stainless steel bracelet
Dial and bezel
- Dial
- Black
- Bezel
- Tachymeter
Movement
- Movement
- Automatic
- Caliber
- 9300
- Power reserve
- 60 hours
- Frequency
- 28,800 vph
- Jewels
- 54
- Functions
- Chronograph, Small seconds, Date
Production
- Production
- 2015–2021
How it compares within the Speedmaster family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 331.10.42.51.01.002 (This watch) | 41.5 mm | Stainless steel | Black | 9300 | 2015–2021 |
| 310.30.42.50.04.001 | 42 mm | Stainless steel | White | 3861 | 2024– |
| 310.92.44.50.06.001 | 44.25 mm | Grey ceramic | Grey (skeletonised) | 3869 | 2025– |
| 310.92.44.50.06.002 | 44.25 mm | Grey ceramic | Grey (skeletonised) | — | 2025– |
| 318.90.45.79.01.003 | 45 mm | Titanium | Black | 5622 | 2022– |
| 332.10.41.51.01.001 | 40.5 mm | Stainless steel | Black | 9906 | 2022– |
| 332.10.41.51.03.001 | 40.5 mm | Stainless steel | Blue | 9906 | 2022– |
| 522.30.38.50.04.001 | 38 mm | Stainless steel / ceramic | White | 3330 | 2025– |
| 522.30.38.50.04.002 | 38 mm | Stainless steel / ceramic | White | 3330 | 2025– |
About the Speedmaster family
The Speedmaster was introduced in 1957 as a sports chronograph with the tachymeter scale on the bezel. It passed NASA's tests in 1965 and was worn on the Moon in 1969, which is why the hand-wound Professional is known as the Moonwatch. Its movement has gone from the caliber 321 to the 861 and 1861, and in 2021 to the Master Chronometer 3861.
Around the Moonwatch the line includes the Speedmaster Racing, the ceramic Dark Side of the Moon, automatic chronographs, the smaller Speedmaster 38 and many special editions. Dealers check the caliber, the crystal (Hesalite or sapphire), the caseback engraving and the reference, and on vintage pieces look closely at dial, bezel and hands.
Quick answers
- What size is the Omega Speedmaster '57 Co-Axial Chronograph 41.5 331.10.42.51.01.002?
- The Omega Speedmaster '57 Co-Axial Chronograph 41.5 331.10.42.51.01.002 has a 41.5 mm case, 16.5 mm thick.
- What movement does the Omega Speedmaster '57 Co-Axial Chronograph 41.5 331.10.42.51.01.002 use?
- It uses the automatic caliber 9300, with a 60-hour power reserve.
- How water resistant is the Omega Speedmaster '57 Co-Axial Chronograph 41.5 331.10.42.51.01.002?
- It is water resistant to 100 metres.
- Is the Omega Speedmaster '57 Co-Axial Chronograph 41.5 331.10.42.51.01.002 still in production?
- No. It was made until 2021.
- When did the Omega Speedmaster '57 Co-Axial Chronograph 41.5 331.10.42.51.01.002 come out?
- It was introduced in 2015 and made until 2021.
- What is the Omega Speedmaster '57 Co-Axial Chronograph 41.5 331.10.42.51.01.002 made of?
- The case is stainless steel. Bracelet or strap: Stainless steel bracelet.
Catalog facts checked September 2026.