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

Reference 40.TSYL

About this watch

The MB&F Horological Machine N°4 HM4 Thunderbolt Yellow Gold is a masterpiece of haute horlogerie that embodies the perfect blend of art and engineering. This limited-edition watch features a three-dimensional horological engine, developed entirely in-house by MB&F, which showcases exceptional craftsmanship and innovative spirit. The round case, measuring 54mm in diameter and 24mm in height, is crafted from a combination of titanium, yellow gold, and sapphire, providing a striking contrast between luxury and durability. The black dial with Arabic numeral indexes serves as a dramatic backdrop for the proprietary hands, making telling time an art form. The watch features a hand-wound movement with two mainspring barrels, delivering a power reserve of 72 hours and a frequency of 21,600 vibrations per hour. The HM4 Thunderbolt Yellow Gold is more than just a timekeeping tool; it's an investment in artistry, craftsmanship, and horological history.
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Key Features

  • Three-dimensional horological engine developed by MB&F
  • Hand-wound movement with two mainspring barrels
  • 72-hour power reserve and 21,600 vibrations per hour frequency
  • Limited edition of one unit
  • Combination of titanium, yellow gold, and sapphire materials
  • Black dial with Arabic numeral indexes and proprietary hands
  • Sapphire glass on front and back for clear view of movement

Specifications

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