Omega
Calibre 1861
Manual-winding chronograph
Specifications
- Maker
- Omega
- Type
- Manual-winding chronograph
- In-house
- Not stated
- Power reserve
- 48 h
- Frequency
- Not found in sources
Sources
- Official Omega retrieved October 18, 2026
Used in
| Watch | Ø | Thickness | Lug-to-lug |
|---|---|---|---|
| Omega Speedmaster '57 Chronograph 38.6 mm 311.10.39.30.01.001Discontinued | 38.6 mm | — | 48 mm |
| Omega Speedmaster Moonwatch Chronograph 42 mm 311.30.42.30.01.004Discontinued | 42 mm | 13.8 mm | 48.2 mm |
| Omega Speedmaster Moonwatch Professional Chronograph 42 mm (calibre 1861) 311.30.42.30.01.005Discontinued | 42 mm | 13.8 mm | 48.2 mm |
| Omega Speedmaster Anniversary Series Chronograph 39.7 mm 311.32.40.30.01.001Discontinued | 39.7 mm | 14 mm | 47 mm |
| Omega Speedmaster Anniversary Series 42 mm (calibre 1861) 311.32.42.30.01.001Discontinued | 42 mm | 14 mm | — |