Omega Speedmaster Moonwatch Professional Co‑Axial Master Chronometer Chronograph 42mm manual winding watch, green dial
O31060425010001
£42,700
Price at Goldsmiths, checked 28 October 2026. Prices can change: Goldsmiths' page has the final word.
42mmManual Winding50 m water resistant18ct yellow goldUnisex
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Specifications
| Brand | Omega |
|---|---|
| Model | Speedmaster Moonwatch Professional Co‑Axial Master Chronometer Chronograph |
| Reference | O31060425010001 |
| Gender | Unisex |
| Style | — |
| Case size | 42mm |
|---|---|
| Lug to lug | — |
| Case material | 18ct yellow gold |
| Bezel | Ceramic |
| Dial colour | Green |
| Strap | 18ct yellow gold |
Will 42mm suit your wrist? Check your size
| Movement | Manual Winding |
|---|---|
| Calibre | 3861 |
| Power reserve | — |
| Water resistance | 50 m |
| Crystal | — |
| Thickness | — |
| Date | — |
| Guarantee | Omega 5 Year Guarantee |
A dash means neither Goldsmiths nor Omega states it on the pages we read, so it's left blank rather than guessed.

