MB&F · Movement
MB&F caliber HM1
Ref. HM1
The MB&F caliber HM1 is an automatic movement with a 168-hour power reserve, beats at 28,800 vph, and carries 81 jewels.
Raised central one-minute tourbillon, separate hours and minutes, 7-day power reserve. Balance oscillating at 28,800 bph. Automatic winding. 22K Gold Battle Axe winding rotor. Four mainspring barrels in parallel. Number of jewels: 81 (all functional). Number of parts: 376 (including jewels).
- Type
- Automatic
- Display
- Analog
- Power reserve
- 168 h
- Frequency
- 28800 vph
- Jewels
- 81
- Complications
- Hours, Minutes, Power Reserve Indicator, Tourbillon Escapement
