HM4 Thunderbolt RT

40.RSL.R

Brand  : MB&F
Collection  : Horological Machine N°4
Model  : HM4 Thunderbolt RT
Reference  : 40.RSL.R
Nber of pieces : 18
Complement : Red Gold - Titanium - Sapphire
On sale : 2012

198 000 €Recorded list price in FranceI WANT IT

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  • Brand  : MB&F
    Collection  : Horological Machine N°4
    Model  : HM4 Thunderbolt RT
    Reference  : 40.RSL.R
    Nber of pieces : 18
    Complement : Red Gold - Titanium - Sapphire
    On sale : 2012
    List Price : 198 000 €
    Height : 52 mm
    Width : 54 mm
    Thickness : 24 mm
    Styles : Atypical
    Types : Hand-winding
    Complication : Power Reserve Indicator
    Case material : Red gold
    Titanium
    Case peculiarity : Left pod with dial for power reserve indication
    Dual jet-turbine-like pods
    Each dial is directly controlled by its own crown
    Right pod with dial for hour and minute display
    Shape : Other
    Dial color : Black
    Display : Luminescent hands
    Indexes : Arabic numerals
    Glass :
    5 sapphire crystals
    Strap material : Calfskin
    Leather
    Strap color : Brun foncé
    Strap clasp : Folding buckle
    + More characteristics : 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

    Case
    5N red gold. Grade 5 titanium and sapphire
    Five sapphire crystals:
    2 x dials
    1 x central case section
    2 x display panels (top and bottom)
    Hours and minutes on right dial
    Power reserve indicator on left dial
    Separate crowns for time setting and winding

    Hand-stitched calfskin strap with titanium/red gold custom designed folding buckle attached to articulated lugs

DESCRIPTION

  • Horological Machine N° 4 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 case of HM4 blends high-tech titanium for its lightweight and strength with a sapphire centre section offering a view into the engine. The limited editions HM4 Razzle Dazzle and Double Trouble take the aviation theme even further with real rivets in their fuselages and hand painted nose art inspired by the rebellious paintings on WWII aircraft, while HM4 RT offers an altogether more luxurious way to fly.

    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 envelope has its roots in Maximilian Büsser's childhood passion for assembling model plane kits, though none looked remotely as futuristic as these. The striking transparent sapphire section of the case requires over 185 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.

    HM4 is available in titanium/sapphire; HM4 Razzle Dazzle and Double Trouble are limited editions of 8 pieces each in titanium/sapphire with hand painted nose art; and HM4 RT is a limited edition of 18 pieces in 5N red gold, titanium and sapphire.

    Inspiration and Realization

    A long childhood passion for assembling model aircraft had Maximilian Büsser's walls, cupboards and ceiling covered in small  aircraft of every description. Planes were what he saw last thing at night and planes were what he saw first thing each morning.

    Many boys sketch supercars and fast planes, but few have the drive and determination to make their dreams come true. Büsser created MB&F to do just that. The HM4 Thunderbolt is born of the child's fantasy and the man's tenacity.

    Engine

    HM4's engine was entirely designed and developed by MB&F over three years of intensive work with Laurent Besse and Beranger Reynard of Les Artisans Horlogers. Each of the 311 components were developed specifically for the Thunderbolt, no off-the-shelf mechanisms or parts were used at all due to the extreme nature of its architecture.

    Two mainspring barrels connected in parallel provide 72 hours of energy, and they transfer their power to the dual jet-turbine-like indication pods (one displaying the hours and minutes, the other the power reserve) via vertical gear trains.

    Visible through a shaped sapphire display panel on the top of the case, a distinctive streamlined cock supports the balance, its centre cut away to reveal as much of the oscillating wheel as possible and validating the "kinetic" in MB&F's "kinetic art". 

    A work of art rewards when viewed from different angles and the Thunderbolt is no exception. Turning the machine over reveals a veritable panorama of meticulously finished micro-engineering through the sapphire sections. In a playful trompe d'oeil, what at first glance appears to be a micro-rotor in the form of MB&F's iconic battle-axe is actually a bridge.

    Indications

    For a timepiece not developed specifically to tell the time, HM4 performs that role superbly. In fact, with its highly legible dials perpendicular to the wearer's wrist, Horological Machine No4 might be described as the perfect pilot's or driver's watch.

    On the left pod, the power reserve is clearly indicated by a skeletonised hand echoing MB&F's battle-axe motif. On the right, hours and minutes are displayed by bold, arrow-tipped Super-LumiNova filled hands. Each of the two aviation instrument-styled dials – Razzle Dazzle and Double Trouble feature vintage patina dials created from a special blend of cream-coloured Super-LumiNova and very fine copper – is directly controlled by its own crown, one to wind and re-fuel the tanks, the other to set the time, which provides direct and instantaneous feedback of the action performed.

    Case

    Inspired by aviation, more specifically the model aircraft kits of Maximilian Büsser's childhood, the case of HM4 imparts speed, power, technology and refinement in equal measure. Visually, the case is composed of three parts: two streamlined jet-turbine-styled pods supported by a horizontal section housing the engine, which is clearly visible through transparent sapphire display panels and the central section of the case itself.

    Technically there are also three main sections, but these comprise a fore section in titanium for HM4 and HM4 Razzle Dazzle and Double Trouble (red gold/titanium for HM4 RT), which includes the dials and articulated front lugs; a central  section in sapphire offering unprecedented 360° access to the superbly finished engine; and an aft section tapering down to the dual crowns and framing the animated balance, which is supported by an aerodynamic cock. Methods borrowed from aeronautic engineering are visible in the externally mounted screws, which provide both rigidity and watch resistance to hold the case’s three sections solidly and elegantly together.

    Beginning with a solid piece of sapphire, more than 185 hours of intricate machining and meticulous polishing are required to turn an opaque block of crystal into the clear, light-filled atrium of the central case section, which reveals part of the Thunderbolt's engine and engineering details. The metal case sections are milled from solid blocks of high-tech Grade 5 titanium (red gold for HM4 RT), which undergoes hundreds of hours of machining before polishing, masking and finally satin-finishing of the surfaces. The results speak for themselves.

    The contrasts of matte with highly polished surfaces, titanium with sapphire for HM4, Razzle Dazzle and Double Trouble, and red gold and titanium with sapphire for HM4 RT, straight lines with seductive curves and rigid forms with articulated arms endows Horological Machine No4 with a life and vibrancy that sets it apart from anything that has ever gone before.

    HM4 Thunderbolt is the quintessential machine as three-dimensional kinetic art.
  • Horological Machine N° 4 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 case of HM4 blends high-tech titanium for its lightweight and strength with a sapphire centre section offering a view into the engine. The limited editions HM4 Razzle Dazzle and Double Trouble take the aviation theme even further with real rivets in their fuselages and hand painted nose art inspired by the rebellious paintings on WWII aircraft, while HM4 RT offers an altogether more luxurious way to fly.

    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 envelope has its roots in Maximilian Büsser's childhood passion for assembling model plane kits, though none looked remotely as futuristic as these. The striking transparent sapphire section of the case requires over 185 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.

    HM4 is available in titanium/sapphire; HM4 Razzle Dazzle and Double Trouble are limited editions of 8 pieces each in titanium/sapphire with hand painted nose art; and HM4 RT is a limited edition of 18 pieces in 5N red gold, titanium and sapphire.

    Inspiration and Realization

    A long childhood passion for assembling model aircraft had Maximilian Büsser's walls, cupboards and ceiling covered in small  aircraft of every description. Planes were what he saw last thing at night and planes were what he saw first thing each morning.

    Many boys sketch supercars and fast planes, but few have the drive and determination to make their dreams come true. Büsser created MB&F to do just that. The HM4 Thunderbolt is born of the child's fantasy and the man's tenacity.

    Engine

    HM4's engine was entirely designed and developed by MB&F over three years of intensive work with Laurent Besse and Beranger Reynard of Les Artisans Horlogers. Each of the 311 components were developed specifically for the Thunderbolt, no off-the-shelf mechanisms or parts were used at all due to the extreme nature of its architecture.

    Two mainspring barrels connected in parallel provide 72 hours of energy, and they transfer their power to the dual jet-turbine-like indication pods (one displaying the hours and minutes, the other the power reserve) via vertical gear trains.

    Visible through a shaped sapphire display panel on the top of the case, a distinctive streamlined cock supports the balance, its centre cut away to reveal as much of the oscillating wheel as possible and validating the "kinetic" in MB&F's "kinetic art". 

    A work of art rewards when viewed from different angles and the Thunderbolt is no exception. Turning the machine over reveals a veritable panorama of meticulously finished micro-engineering through the sapphire sections. In a playful trompe d'oeil, what at first glance appears to be a micro-rotor in the form of MB&F's iconic battle-axe is actually a bridge.

    Indications

    For a timepiece not developed specifically to tell the time, HM4 performs that role superbly. In fact, with its highly legible dials perpendicular to the wearer's wrist, Horological Machine No4 might be described as the perfect pilot's or driver's watch.

    On the left pod, the power reserve is clearly indicated by a skeletonised hand echoing MB&F's battle-axe motif. On the right, hours and minutes are displayed by bold, arrow-tipped Super-LumiNova filled hands. Each of the two aviation instrument-styled dials – Razzle Dazzle and Double Trouble feature vintage patina dials created from a special blend of cream-coloured Super-LumiNova and very fine copper – is directly controlled by its own crown, one to wind and re-fuel the tanks, the other to set the time, which provides direct and instantaneous feedback of the action performed.

    Case

    Inspired by aviation, more specifically the model aircraft kits of Maximilian Büsser's childhood, the case of HM4 imparts speed, power, technology and refinement in equal measure. Visually, the case is composed of three parts: two streamlined jet-turbine-styled pods supported by a horizontal section housing the engine, which is clearly visible through transparent sapphire display panels and the central section of the case itself.

    Technically there are also three main sections, but these comprise a fore section in titanium for HM4 and HM4 Razzle Dazzle and Double Trouble (red gold/titanium for HM4 RT), which includes the dials and articulated front lugs; a central  section in sapphire offering unprecedented 360° access to the superbly finished engine; and an aft section tapering down to the dual crowns and framing the animated balance, which is supported by an aerodynamic cock. Methods borrowed from aeronautic engineering are visible in the externally mounted screws, which provide both rigidity and watch resistance to hold the case’s three sections solidly and elegantly together.

    Beginning with a solid piece of sapphire, more than 185 hours of intricate machining and meticulous polishing are required to turn an opaque block of crystal into the clear, light-filled atrium of the central case section, which reveals part of the Thunderbolt's engine and engineering details. The metal case sections are milled from solid blocks of high-tech Grade 5 titanium (red gold for HM4 RT), which undergoes hundreds of hours of machining before polishing, masking and finally satin-finishing of the surfaces. The results speak for themselves.

    The contrasts of matte with highly polished surfaces, titanium with sapphire for HM4, Razzle Dazzle and Double Trouble, and red gold and titanium with sapphire for HM4 RT, straight lines with seductive curves and rigid forms with articulated arms endows Horological Machine No4 with a life and vibrancy that sets it apart from anything that has ever gone before.

    HM4 Thunderbolt is the quintessential machine as three-dimensional kinetic art.
  • Brand  : MB&F
    Collection  : Horological Machine N°4
    Model  : HM4 Thunderbolt RT
    Reference  : 40.RSL.R
    Nber of pieces : 18
    Complement : Red Gold - Titanium - Sapphire
    On sale : 2012
    List Price : 198 000 €
    Height : 52 mm
    Width : 54 mm
    Thickness : 24 mm
    Styles : Atypical
    Types : Hand-winding
    Complication : Power Reserve Indicator
    Case material : Red gold
    Titanium
    Case peculiarity : Left pod with dial for power reserve indication
    Dual jet-turbine-like pods
    Each dial is directly controlled by its own crown
    Right pod with dial for hour and minute display
    Shape : Other
    Dial color : Black
    Display : Luminescent hands
    Indexes : Arabic numerals
    Glass :
    5 sapphire crystals
    Strap material : Calfskin
    Leather
    Strap color : Brun foncé
    Strap clasp : Folding buckle
    More characteristics : 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

    Case
    5N red gold. Grade 5 titanium and sapphire
    Five sapphire crystals:
    2 x dials
    1 x central case section
    2 x display panels (top and bottom)
    Hours and minutes on right dial
    Power reserve indicator on left dial
    Separate crowns for time setting and winding

    Hand-stitched calfskin strap with titanium/red gold custom designed folding buckle attached to articulated lugs