horological machine n°3 Frog

horlogical machine n°3 Frog

 
 

About

MB&F presents Horological Machine No3 Frog. Haute horlogerie is (usually) a very restrained and serious business; however one of Maximilian Büsser’s main goals in creating MB&F was to bring a child's sense of awe and playfulness into high-end watchmaking. There is no doubting that with the HM3 Frog series MB&F have certainly achieved that aim… and more!

The protruding eyes of real-life, amphibious frogs enable them to see in many directions without having to turn their head. The bulbous hour and minute domes of HM3 Frog create a similar effect, though in this case it means the wearer can easily read the time from a variety of angles without having to turn his or her wrist.

Rotating domes of this size and shape posed MB&F with a number of technical challenges. The hour and minute domes are machined from solid aluminium, chosen for its optimal strength to weight ratio. The domes weigh in at a micro-light 0.5g. They are milled first from the outside and then the inside to arrive at a paper-thin wall thickness of just 0.28 mm, which reduces their energy requirements to an absolute minimum.

Even the fabrication of the semi-spherical sapphire crystal domes was incredibly demanding and only recently even possible at all. This is due to the fact that any slight imperfection in the sapphire might introduce a disconcerting magnification effect. The sapphire has to be shaped and polished to be perfectly uniform.

The Frog may portray the time in a playful manner, but there is nothing but serious and meticulous attention to detail and care regarding the fine hand-finishing of the highly-tuned, Jean-Marc Wiederrecht-designed engine. A close inspection of the case is rewarded with carefully thought out detailing including a figure 8 engraved around the domes that mirrors the form of the display back (revealing dual ceramic bearings); distinctive clover-head screws; and an engraved arrow discreetly indicating the easy to read over-sized date.

HM3 Frog Ti is available in Grade 5 titanium with blue 22k gold battle-axe winding rotor.

HM3 Poison Dart Frog is a limited edition of 10 pieces created exclusively for The Hour Glass, and features black PVD-coated zirconium case, 22k gold rotor and 18k yellow gold screws.

HM3 Fire Frog is a limited edition of 10 pieces in 18k red gold and titanium case, 22k red gold rotor and 18k red gold screws.

views

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  • hm3 frog
  • hm3 poison dart frog
  • hm3 fire frog
HM3 FIRE FROG
HM3 FROG PROFILE
HM3 POISON DART FROG PROFILE
HM3 FIRE FROG FACE
HM3 FROG
HM3 POISON DART FROG FACE
HM3 POISON DART FROG
HM3 FROG FACE
HM3 FROGS
HM3 FIRE FROG PROFILE

friends

  • all
  • design
  • movement
  • case & buckle
  • dial & hands
  • communication
  • accessories
 
 
Emmanuel Maitre
 
Guillaume Thévenin
 
Alexandre Bonnet
 
Olivier Purnot
 
Georges Auer
 
Denis Garcia
 
Isabelle Vaudaux
 
Stéphane Balet
 
Dominique Mainier
 
Maximilian Büsser
 
Eric Giroud
 
François Bernhard
 
Gérald Moulière
 
Guillaume Schmitz
 
Didier Dumas
 
Georges Veisy
 
Nicolas Stalder
 
Bertrand Sagorin-Querol
 
Stefano Macaluso
 
FLORIAN COURBAT
 
CYRIL FALLET
 
Raphaël Ackermann
 
Virginie Meylan
 
Patrice Parietti
 
David Lamy
 
Salvatore Ferrarotto
 
Maarten van der Ende
 
Régis Golay
 
Denis Parel
 
Serge Kriknoff
 
Bertrand Jeunet
 
Frédéric Legendre
 
Ian Skellern
 
Jacques-Adrien Rochat
 
Jean-Marc Wiederrecht
 
Martin Stettler
 
Charris Yadigaroglou
 
Anthony Franklin
 
Hervé Estienne
 

engine

  • front
  • back

collection

32rlb.png

32.RL.B
Fire Frog
18k red gold and titanium case, 18k red gold screws
Limited edition of 10 pieces

30tlb.png

32.TL.B
Grade 5 Titanium

32zrbrlb.png

32.ZRBRL.B
Poison Dart Frog
Black PVD coated Zirconium with yellow gold
Limited edition 10 pieces

specs & manual

  • view specs
  • view manual

Case

  • HM3 Frog Ti: Grade 5 titanium case and screws
  • HM3 Poison Dart Frog: Black PVD zirconium case, 18k yellow gold screws, limited edition of 10 pieces
  • HM3 Fire Frog : 18k red gold and titanium case, 18k red gold screws, limited edition of 10 pieces
  • Screwed-down crown
  • Dimensions (exclusive of crown and lugs): 47mm x 50mm x 18mm
  • Number of case components: 53

Movement

  • Three-dimensional horological engine designed by Jean-Marc Wiederrecht/Agenhor
    Powered by a Sowind base
  • Balance oscillating at 28,800 bph.
  • Battle-axe shaped ‘mystery’ automatic winding rotor.
    HM3 Frog Ti: Rotor in blue PVD 22k gold
  • HM3 Poison Dart Frog: Rotor in 22k gold
  • HM3 Fire Frog : Rotor in 22k red gold
  • Hour and minutes information transmitted via ceramic ball bearings to rotating domes.
  • Number of jewels: 36 (all functional)
  • Number of components: 304

Functions

  • Hour on one dome (aluminium dome rotating in 12 hours)
  • Minutes on second dome (aluminium dome rotating in 60 minutes)
  • Date around the movement

Sapphire crystals

  • Domes and both displays front and back have an anti-reflective treatment on each face.

Dials

  • Rotating aluminium domes – 0.58g

Strap & Buckle

  • Black hand-stitched alligator with 18K gold & titanium custom designed deployment buckle

Accessories

accessories
manual_1

1. Winding

Your watch is equipped with an automatic movementand a screwed-down crown.
If it has stopped, turn the crown anticlockwise to slide the crown out and wind the crown a few turns (clockwise).

2. Time setting

« Out » position : turn the crown anticlockwise and slide it fully out. Turn the crown to correct time.

manual_1

Date setting

To adjust the date, gently position the supplied tool in the corrector hole, which is located on the right-hand side of the case.

Warning: to avoid damaging the date gear train, do not adjust the date between 8.00 p.m. and 3.00 a.m.