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Technical Specifications:
Engine:
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
Functions:
Hours, minutes and power reserve indicator
Hours and minutes on right dial, power reserve indicator on left dial
Separate crowns for time setting and winding
Case:
Grade 5 titanium and sapphire
Dimensions: 54mm wide x 52mm long x 24mm high
Number of components: 65
Articulation of lugs: 3°
Sapphire crystals:
Five sapphire crystals: 2 x dials, 1 x central case section, 2 x display panels (top and bottom)
Strap & Buckle:
Black hand-stitched calfskin strap with titanium/white gold custom designed deployment buckle attached to articulated lugs
'Friends' responsible for Horological Machine No4 "Thunderbolt"
Concept: Maximilian Büsser/MB&F
Product Design: Eric Giroud - Eric Giroud Design Studio
Technical and Production Management: Serge Kriknoff/MB&F
Production logistics: David Lamy/MB&F
Movement Development: Laurent Besse, Béranger Reynard and Patrick Lété of Les Artisans
Horlogers
Movement manufacturing: Daniel Uhlmann/Azuréa Technologies, Nicolas Broquet/Broquet
Décolletage, Yann Ryser/Tital
Hand-finishing of movement components: Jacques-Adrien Rochat and Denis Garcia of
C-L Rochat
Movement assemblage: Didier Dumas and Georges Veisy/MB&F
Case and buckle construction and production: Jean-Pierre Kohler and Lionel Gavignet of Profusion
Martin Stettler of Stettler
Dominique Mainier and Bertrand Jeunet of G.F.Châtelain
Dials: François Bernhard and Denis Parel of Nateber
Hands: Pierre Chillier, Isabelle Chillier and Félix Celetta of Fiedler
Strap: Olivier Purnot/Camille Fournet