MB&F Horological Machines Horological Machine N°4 HM4 Thunderbolt

Reference 40.TSL.B

MB&F Horological Machine N°4 HM4 Thunderbolt

About this watch

The MB&F Horological Machine N°4 HM4 Thunderbolt is a masterpiece of high-end horology, combining bold design with cutting-edge technology. Its 54mm diameter and 24mm height make it a statement piece that demands attention. The use of titanium and sapphire gives it a sleek, modern look that's both durable and lightweight. The watch features the MB&F caliber HM4, a fully developed 3D horological engine with two mainspring barrels providing an impressive power reserve of 72 hours. It also has a balance frequency of 21,600 beats per hour (bph) or 3 Hz, ensuring accuracy while maintaining a smooth operation. The watch is equipped with an analog display and a power reserve indicator, showcasing the hours and minutes with precision. Durability meets elegance in the materials used for the HM4, featuring titanium and sapphire glass. The open case back allows you to peer into the intricate workings of the movement, making it a fascinating glimpse into the mechanical world that drives the watch.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Manual winding watch
  • Titanium case with sapphire crystal
  • MB&F caliber HM4 3D horological engine
  • 72-hour power reserve
  • 21,600 beats per hour (bph) or 3 Hz balance frequency
  • Analog display and power reserve indicator
  • 50 jewels minimizing friction and enhancing durability

Specifications

Brand
MB&F
Family
Horological Machines
Model
Horological Machine N°4 HM4 Thunderbolt
Reference
40.TSL.B
Movement Features
  • Hours, Minutes
  • Power Reserve Indicator
Case
54mm
Dial Color
Black
Crystal
Sapphire