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The Fixation | MB&F HM3 Frog

By Eric Yang on 5.14.10

It’s amazing what “relentless pursuit” can achieve. In the case of MB&F, the Horological Machine N°3 Frog or HM3 Frog. MB&F (Maximilian Büsser & Friends) is a consortium of timepiece artisans and professionals with an ingeniously simple yet incomprehensibly difficult mission: to design and craft a radical timepiece every year. You can summarily call it, engineering insanity or our current fixation.

The MB&F HM3 Frog is a timepiece full of challenges, start to finish. Not a beauty challenge mind you, but an engineering challenge. Everything from the signature aluminum milled hour and minute domes residing beneath the semi-spherical sapphire crystal domes, to the 53 component 46x50x17mm case exudes engineering marvel. This includes the HM3′s movement composed of a Jean-Marc Widerrecht/Agenhor three-dimensional movement, Girard-Perregaux oscillator and gear, 22K blued rose gold battle-axe shaped myster automatic winding rotor, and 36 functional jewels. Available in Grade 5 titanium with blued rotor (pictured) or a limited edition mark-resistant black-coated titanium with green rotor. Pictured in our gallery below.

Interestingly, I learned that the founder of MB&F, Maximilian Büsser, is an avid reader of Gear Patrol. He had a thought to share about the nigh-impossible challenge his team faces and how that relates to the adventurous spirit of Gear Patrol and more importantly, our readers:

“MB&F, not unlike the Gear Patrol reader, is about an adventure. In the case of the HM3 Frog, an adventure to blend childhood mischief with haute horology.”
-Max Büsser (founder of MB&F)

Now, whether or not you follow timepieces on GP, I feel that’s a sentiment something we can all appreciate.

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Case

Grade 5 titanium/blue 22K gold rotor; limited edition of 12 black titanium/green 22K gold rotor (black treated with mark-resistant silicon oxide) Screwed-down crown Dimensions (exclusive of crown and lugs) 47mm x 50mm x 16mm Number of case components 53

Movement

Three-dimensional horological engine designed by Jean-Marc Wiederrecht/Agenhor Girard-Perregaux oscillator and gear Balance oscillating at 28,800 bph 22K blued rose gold battle-axe shaped ‘mystery’ automatic winding rotor Hour and minutes information transmitted via ceramic ball bearings to rotating domes Number of jewels 36 (all functional) Number of components 304

Functions

Hour and day/night indicator on one dome (aluminium dome rotating in 12 hours) Minutes on second dome (aluminium dome rotating in 60 minutes) Date around the movement

Dials

Rotating aluminium domes, stationary hands

Sapphire crystals

Domes and both display backs with anti-reflective treatment on both faces Domes for indications in aluminium, 0.58g
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