MB&F caliber HM4

MB&F caliber HM4
Brand:MB&F
Reference:HM4
Movement:Handwound
Display:Analog
Jewels:50
Reserve:72
Frequency:21600
Hands:Hours, Minutes
Additionals:Power Reserve Indicator

Description

Three-dimensional horological engine developed 100% by MB&F
Manual winding with two mainspring barrels in parallel
Power reserve: 72 hours
Balance frequency: 21,600bph/3Hz
Number of components: 311
Number of jewels: 50

All watches using this caliber: