1866
Manual Chronograph
A manual-winding chronograph caliber featuring a moonphase display and a date indicator at the 12 o'clock position, utilized in the Omega Speedmaster Professional.
Caliber Details
- Manufacturer
- Omega
- Base Movement
- Omega 1861
- Type
- Manual Chronograph
- Frequency
- 21600 vph
- Power Reserve
- 45 h
- Jewels
- 17
- Diameter
- 27.00 mm
- Display
- Analog
- Hands
- Hours, Minutes, Small Seconds
