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Horological Machine No4 Thunderbolt

Case material
Titanium
Bracelet strap
Leather
Buckle
Folding buckle
Water resistance
30 m
Size
54 x 52 mm
Thickness
24 mm
Movement
Manual-winding mechanical
Power reserve: 72 h, 21600 variations / hours
Functions
Hours, Minutes, Seconds, powerreserve
Reference
40.TSL.B
Year
2010
Collection
Horological Machine No4 Thunderbolt
Price excl.VAT
158'000 CHF
Description

Horological Machine No4 Thunderbolt


A traditional wristwatch has a relatively straightforward role: to tell the time. All that is needed is a hand for the hours, another for the minutes and perhaps a power reserve indicator to keep track of running time. Horological Machine No4 Thunderbolt has a hand for the hours, another for the minutes and a power reserve indicator. HM4 Thunderbolt tells the time.

HM4 Thunderbolt is not a traditional wristwatch.
The aviation-inspired case and engine of the Thunderbolt are one. Neither would, nor could, exist without the other, yet each is so transcendental as to be able to stand alone as a work of art in its own right.

The Thunderbolt's engine is the culmination of three long years of development. Each of the 300-plus components – including the regulator and even the screws – was developed specifically for this anarchistic calibre. Horizontally configured dual mainspring barrels drive two vertical gear trains, transferring power to the twin pods indicating hours/minutes and power reserve.

But describing HM4's engine through its mechanical functionality is like describing Renoir's work through the chemical composition of his paint. Only careful contemplation enables full appreciation, and the sapphire case section and display panels top and bottom allow full access to the flawless fine finishing of HM4's intricate and vibrant micro-mechanics.

The sleek aerodynamic form of the Thunderbolt's titanium and sapphire envelope has its roots in Maximilian Büsser's childhood passion for assembling model plane kits, though none looked remotely as futuristic as this. The striking transparent sapphire section of the case requires over 100 hours of machining and polishing to transform an opaque solid block of crystal into a complex, exquisitely curved panel allowing the light to come in and the beauty of Thunderbolt's engine to stand out. Every component and form has a technical purpose; nothing is superfluous and every line and curve is in poetic harmony.  Articulated lugs ensure supreme comfort. Highly legible time is a fringe benefit.

About MB&F

After decades learning and conforming to the corporate rules of watchmaking, Maximilian Büsser broke the chains and started a rebellion – a rebellion called MB&F. MB&F is an artistic and micro-engineering concept laboratory in which collectives of independent horological professionals are assembled each year to design and craft radical Horological Machines.
The ramifications of these audacious projects are profound. Respecting tradition but not shackled by it, MB&F fuses traditional, high-quality watchmaking with cutting-edge technology to create three-dimensional kinetic sculptures.

In the 19th century, photography liberated art from realism: Monet painted "Impressionism, Sunrise" giving rise to a new artistic movement based on re-interpreting light.
In the 21st century, electronics liberated watchmaking from timekeeping: MB&F created Horological Machines, giving rise to a new artistic movement based on re-interpreting horology.