MB&F caliber LM Perpetual

MB&F caliber LM Perpetual
Brand:MB&F
Reference:LM Perpetual
Movement:Handwound
Display:Analog
Jewels:41
Reserve:72
Frequency:18000
Date:Date, Day, Leap Year, Month
Hands:Hours, Minutes
Additionals:Power Reserve Indicator

Description

Fully integrated perpetual calendar developed for MB&F by Stephen McDonnell, featuring dial-side complication and mechanical processor system architecture with inbuilt safety mechanism. Manual winding with double mainspring barrels. Bespoke 14mm balance wheel with traditional regulating screws visible on top of the movement. Superlative hand finishing throughout respecting 19th century style: internal bevel angles highlighting hand craft; polished bevels; Geneva waves; hand-made engravings.
Power reserve: 72 hours
Balance frequency: 18,000bph / 2.5Hz
Number of components: 581
Number of jewels: 41

All watches using this caliber: