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MB&F

HM3 FROG Ti

Based on Horological Machine No.3, one of MB&F's most successful Machines to date, the HM3 Frog was first presented in 2010. It takes its name from the distinctive revolving hour and minute domes which have become a signature of MB&F.

The Frog may portray the time in a playful manner, but there is nothing but serious and meticulous attention to detail when it comes to fine hand-finishing of the highly-tuned, Jean-Marc Wiederrecht-designed engine. The original "Frog Ti" edition is crafted in grade 5 titanium, with a blue 22k gold battle-axe winding rotor.

Worldwide shipping is offered free of charge. Local customs duties and other taxes applicable in the country of delivery are borne by the buyer.

This is the last HM3 Frog Ti remaining on the market. It is available at our retail partner Westime, with stores in Los Angeles, La Jolla and Miami.

91‘000 CHF

USD

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Description

HM3 Frog Ti (sold by Westime)

The protruding eyes of real-life frogs enable them to see in many directions without having to turn their head. HM3 Frog’s bulbous hour and minute domes create a similar, but reversed effect: the wearer can easily read the time from a variety of angles. 

The revolving domes complication, framed by an oversized date wheel, was designed for MB&F by award-winning watchmaker Jean-Marc Wiederrecht. Machining the domes posed a number of technical challenges; weighing in at a micro-light 0.5g, they are machined from solid aluminium, chosen for its optimal strength to weight ratio. The domes are milled first from the outside and then the inside to arrive at a paper-thin wall thickness of just 0.28mm, which reduces their energy requirements to an absolute minimum.

The manufacturing of the semi-spherical sapphire crystal domes, shaped and polished to be perfectly uniform, is equally demanding: any slight imperfection in the sapphire would introduce a disconcerting magnification effect.


The movement of the HM3 Frog has been literally turned upside down to allow for an uninterrupted panorama of the solid gold winding rotor’s graceful arcs and the high-speed oscillations of the balance wheel. Turning the watch over reveals the technical secret behind its inverted movement: two large ceramic bearings efficiently transmit power up to the cones and date wheel. 

The HM3 Frog Ti was the very first of the Frog series. Crafted in grade 5 titanium, combined with a 22k gold “battle-axe” winding rotor, a close inspection of the case reveals carefully thought out detailing including distinctive clover-head screws and a figure 8 engraved around the domes that mirrors the form of the display back.

HM3 Frog Ti (sold by Westime)

The Creator

Maximilian Büsser and Friends

After decades confirming to the rules of corporate watchmaking, Max Büsser broke the chains and started a rebellion in 2005; a rebellion called MB&F - Maximilian Büsser & Friends.

MB&F is an artistic concept laboratory based around a simple idea: to assemble collectives of independant watchmaking professionals to develop radical watches - Horological or Legacy Machines. By nurturing teams of talented individuals, harnessing their passion and creativity and crediting each person's essential role, MB&F uses their synergy to become much greater than the sum of its parts. Respecting tradition, but never constrained by it, MB&F reinterprets traditional, high-quality watchmaking into three-dimensional kinetic sculptures.

After decades confirming to the rules of corporate watchmaking, Max Büsser broke the chains and started a rebellion in 2005; a rebellion called MB&F - Maximilian Büsser & Friends.

MB&F is an artistic concept laboratory based around a simple idea: to assemble collectives of independant watchmaking professionals to develop radical watches - Horological or Legacy Machines. By nurturing teams of talented individuals, harnessing their passion and creativity and crediting each person's essential role, MB&F uses their synergy to become much greater than the sum of its parts. Respecting tradition, but never constrained by it, MB&F reinterprets traditional, high-quality watchmaking into three-dimensional kinetic sculptures.

Specifications

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DISPLAY

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




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DIMENSIONS

47mm x 50mm x 18mm

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ENGINE

Three-dimensional horological engine designed by Jean-Marc Wiederrecht/Agenhor, powered by a Girard-Perregaux base
Automatic winding, 22k gold "battle-axe" rotor
Frequency: 4Hz (28,800bph)
Hours and minutes transmitted via ceramic ball bearings to rotating domes
304 components, 36 jewels

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CASE

Grade 5 titanium
Sapphire crystals: domes and front and back displays with anti-reflective treatment on both sides
Screw-down crown
Water resistant to 3ATM / 30m / 100ft

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STRAP & BUCKLE

Black hand-stitched alligator with 18K gold & titanium folding buckle

MB&F

HM3 FROG Ti

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MB&F - HM3 Frog Ti (sold by Westime)

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