Omega
Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer 42 310.32.42.50.04.002
The Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer 42 (reference 310.32.42.50.04.002) is a 42 mm stainless steel watch with a white dial. It runs on the manual caliber 3861 with a 50-hour power reserve and is water resistant to 50 m.
Specifications
Case
- Reference
- 310.32.42.50.04.002
- Collection
- Speedmaster
- Case size
- 42 mm
- Thickness
- 13.18 mm
- Case material
- Stainless steel
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 50 m
- Bracelet / strap
- Leather strap
Dial and bezel
- Dial
- White
Movement
- Movement
- Manual
- Caliber
- 3861
- Power reserve
- 50 hours
- Frequency
- 21,600 vph
- Functions
- Chronograph, Small seconds, Tachymeter
Production
- Production
- Current
Dial versions
This reference was made with these dials and finishes.
310.32.42.50.04.002 White
White dial with black subdials
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 |
|---|---|---|---|---|---|
| 310.32.42.50.04.002 (This watch) | 42 mm | Stainless steel | White | 3861 | — |
| 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 Moonwatch Professional Co-Axial Master Chronometer 42 310.32.42.50.04.002?
- The Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer 42 310.32.42.50.04.002 has a 42 mm case, 13.18 mm thick.
- What movement does the Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer 42 310.32.42.50.04.002 use?
- It uses the manual caliber 3861, with a 50-hour power reserve.
- How water resistant is the Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer 42 310.32.42.50.04.002?
- It is water resistant to 50 metres.
- Is the Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer 42 310.32.42.50.04.002 still in production?
- Yes, it is a current reference.
- What is the Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer 42 310.32.42.50.04.002 made of?
- The case is stainless steel. Bracelet or strap: Leather strap.
Catalog facts checked October 2026.