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Derived from the HM3 series, MegaWind combines a giant “battle-axe” winding rotor with highly legible hour and minute indication cones, rising from the case.

MegaWind is powered by the beautifully engineered, Jean-Marc Wiederrecht-designed HM3 engine. Placing the rotor and regulator on the dial side required flipping the movement upside down – possible thanks to two large ceramic bearings visible through the display back. Rotating displays of this size and shape generated a number of technical headaches: the cones are machined from solid blocks of aluminium, chosen for its optimal strength to weight ratio, and reducing energy requirements to an absolute minimum.

Close inspection of the case reveals a myriad of carefully considered details: the bespoke clover-head gold screws, the cleverly integrated lugs attaching the strap, and the bevelled perimeter of the rotor display crystal that adds visual flair as the angles catch and reflect flashes of light.

more pictures in press section
HM3 Megawind

the machine


  • Material: 18k white gold/titanium, 18k red gold/titanium or black PVD-treated 18k gold and titanium, with C3 Super-LumiNova numerals and band under the rotor
  • Dimensions: 47 x 50 x 17 mm


  • Three-dimensional horological engine designed by Jean-Marc Wiederrecht/Agenhor; Sowind oscillator and gear train
  • 22k gold and titanium battle-axe automatic winding rotor
  • Time indications transmitted via ceramic ball bearings
  • 270 components / 36 jewels

Functions / indications

  • Hours on one cone and minutes on second cone
download manual
Giant battle axe rotor

Giant battle axe rotor

Composed of a central section in titanium and twin 22k gold blades, the iconic MB&F battle-axe rotor is placed in full view dial-side.

Rotating cones

Rotating cones

Milled from solid blocks of aluminium, the paper-thin rotating cones display hours and minutes. The time is clearly visible from both the large numbers on the sides of the cones as well as duplicate indications on top.

Ceramic bearings

Ceramic bearings

Placing the rotor and regulator on the dial side required an inverted movement, only possible thanks to two large ceramic bearings that efficiently transmit power to the revolving hour and minute cones above.



The HM3 series was developed to display the machine’s beautifully finished movement in operation. By turning the movement upside down, all is open to view: harmoniously crafted bridges, rapidly oscillating balance wheel, gearing and distinctive battle-axe automatic winding rotor.

MegaWind takes the HM3 concept even further, by increasing the size of the powerful winding rotor and optimising the legibility of the hour and minute cones.


MegaWind is available in 18k red or white gold, combined with a titanium caseback; plus a Final Edition limited to 25 pieces in black PVD-treated 18k gold and titanium, with Super-LumiNova numerals and band under the rotor.