Horological Machine N°7



After pushing the boundaries of horological exploration by blasting into outer space (HM2, HM3, HM6), launching into the sky (HM4, HM9), and powering down the road and around the track (HM5, HMX, HM8), MB&F plunges into the water with Horological Machine No.7, aka HM7 Aquapod.

The organic jellyfish-inspired design of HM7 Aquapod is counter-balanced by the very mechanical horology within: a central 60-second flying tourbillon tops the concentric vertical movement architecture, with indications radiating out from the centre like ripples in a pond. Like many jellyfish, HM7 glows in the dark: on the hour and minute numerals, around the inside of the movement and along the tentacle-like winding rotor.

The 303-component (391 for the Platinum Red edition), 72-hour power reserve HM7 Engine was developed in-house by MB&F. Spherically three-dimensional, all its mechanisms – from the winding rotor at the bottom, to the flying tourbillon on top – rotate concentrically around the centre. The curves of the high-domed sapphire crystal are mirrored in the shape of the time display rings.

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the machine


  • Material: Grade 5 titanium or 18k 5N+ red gold or Platinum 950
  • Spherical construction
  • Dimensions: 53.8 x 21.3 mm
  • Water resistance: 50 m / 165 feet / 5 atm


  • Three-dimensional vertical architecture, automatic winding, conceived and developed in-house by MB&F
  • Central 60-second flying tourbillon
  • 303 components (391 for the Platinum Red edition) / 35 jewels / 72h power reserve

Functions / indications

  • Hours and minutes displayed by two aluminium / titanium spherical segment discs rotating on oversized central ceramic bearings (for the Platinum Red edition, three-dimensional “floating” hour and minute numerals)
  • Unidirectional rotating bezel for elapsed time
  • Numerals, markers and segments along the rotor in Super-LumiNova
  • 3 panels of AGT (Ambient Glow Technology) lume around the flying tourbillon
  • Two crowns: winding on left and time-setting on right

Sapphire crystals

  • Top and bottom sapphire crystals treated with anti-reflective coating on both faces. Sapphire balance bridge for the Platinum Red edition
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Flying tourbillon

Flying tourbillon

The flying tourbillon at the very top of the movement is positioned for maximum appreciation by day, while three panels of AGT Ultra (Ambient Glow Technology) lume around the inside of the movement illuminate the tourbillon by night.

Winding rotor

Winding rotor

The winding rotor’s tentacles are machined from a solid block of titanium with a platinum sector underneath. Their curved, three-dimensional nature alternates between polished and satin-finished sections. Super-LumiNova segments along the rotor make it glow in the dark.

Floating Bezel

Floating Bezel

While HM7 is not a dive watch, it is a timepiece comfortably at home in the water – so MB&F added the one element that all serious aquatic watches possess: a unidirectional rotating bezel. But unlike every other dive watch, Aquapod's bezel isn't attached to the case, but floats apart.



The idea for an aquatic watch originated from Maximilian Büsser’s memories of family beach holidays, which included an encounter with a jellyfish. While the encounter may have been minor, the seed it planted in Büsser's brain for a three-dimensional timepiece powered by tentacles was anything but.

HM7 began its gestation as a horological jellyfish, and the architecture of its Engine is appropriately biomorphic. Where a jellyfish generates power from food caught in its tentacles, HM7 generates power from its tentacle-like automatic winding rotor.

Where jellyfish have a radially symmetric ring of neurons for a brain, Aquapod has radially symmetric rings displaying hours and minutes. Where jellyfish have a hood or bell on top, HM7 has an imposing flying tourbillon regulating the power generated by the rotor.

And, like many jellyfish, HM7 glows in the dark. It glows on the numerals, markers and along the segments on the winding rotor but also around the inside of the movement.