Luxury watchmaker MB&F has unveiled two extraordinary limited editions based on the Horological Machine No. 4 Thunderbolt: the HM4 Double Trouble and the HM4 Razzle Dazzle. Hand-painted by artist Isabelle Villa, these avant-garde timepieces pay a vivid tribute to the legendary aircraft of World War II.
Maximilian Büsser explains the inspiration behind the designs: “When I was making model airplanes as a boy, they were mainly WWII aircraft. The HM4 Thunderbolt is an aviation-inspired Machine with its roots in those model plane kits, so it was only natural to imagine what the HM4 might have looked like in that era. With hand-painted nose art, real rivets, vintage-look dials, and an authentic military leather strap, the metamorphosis of the Thunderbolt is complete.”
Both the Razzle Dazzle and Double Trouble are highly exclusive, with only eight pieces produced for each edition.
Technical Specifications
The Engine
- Movement: Three-dimensional horological engine developed 100% by MB&F.
- Winding: Manual winding with two mainspring barrels in parallel.
- Power Reserve: 72 hours.
- Frequency: 21,600 bph / 3Hz.
- Complexity: 311 components and 50 jewels.
Functions
- Displays: Hours and minutes on the right dial; power reserve indicator on the left dial.
- Controls: Separate crowns for time setting and winding.
Case & Design
- Materials: Grade 5 titanium and sapphire.
- Dimensions: 54mm wide x 52mm long x 24mm high.
- Details: 65 case components with 3° articulated lugs and hand-painted nose art on the case side.
- Crystals: Five sapphire crystals (two for the dials, one central case section, and two display panels).
Strap & Buckle
- Strap: Authentic vintage leather crafted from Swiss military bags with contrasting white hand-stitching.
- Buckle: Custom-designed titanium/white gold deployment buckle.
Interested in more aviation-inspired horology? See the MB&F HM4 RT, another stunning iteration of the HM4 series.
[ Source: MB&F ]
