legacy machine n°2

legacy machine n°2



Legacy Machines are wondrous reinterpretations of significant horological inventions by the greatest watchmakers in history. So the contemporary look endowed by the otherworldly appearance of Legacy Machine No.2's dual flying balances, suspended high above the dial from four gracefully arcing arms, may at first appear paradoxical. But make no mistake; LM2 is a timepiece tracing its lineage back over 250 years to three of the greatest watchmakers who ever lived: Abraham-Louis Breguet (1747– 1823), Ferdinand Berthoud (1727– 1807) and Antide Janvier (1751– 1835).

These horological legends of the 18th century are united not only by their inventive genius, but also by the fact that they have all constructed clocks and watches with two balances. Oscillating on high, the exalted double balance wheels of LM2 were inspired by one of the rarest mechanisms in the history of watchmaking: the dual regulator. And rarer still, the average rates of Legacy Machine No.2's dual regulators are transmitted by a differential to a single gear train, where the majority had two separate movements.

On display under a domed sapphire crystal cupola, the dial of Legacy Machine No. 2 is an object lesson in symmetrical simplicity. Top to bottom: the white stretched lacquer sub dial at 12 o'clock, with its blued gold hour and minute hands, is visually balanced by the large, raised differential at 6 o'clock. Left to right: the two flying balances and their escapements are identical mirror images, right down to the position of the stud holders pinning their balance springs.

While the levitated oscillating balance wheels of the binary regulators catch and hold the viewer's gaze, it is the large planetary differential sitting proud of the dial that is the real heart of Legacy Machine No. 2. In an incredible feat of micro-engineering − and the sheer paucity of timepieces with multiple regulators connected via a differential attests to the enormous difficulty in creating such a complex high-precision mechanism.

Immaculate Geneva waves, gold chatons, mirror-polished bevels and bridges designed with deliberate internal bevelled angles showcase the movement's peerless fine finishing. Consistent with MB&F's spirit of transparency, the names of the two men responsible for the movement (Jean-François Mojon and Kari Voutilainen) are hand engraved on the back.

Two and a half centuries after three of the world's greatest watchmakers put two balance wheels into their movements, MB&F celebrates their pioneering works by creating LM2, a timepiece with two balances hovering outside the movement.


  • all
  • lm2 RG
  • lm2 WG
  • lm2 Platinum
LM2 P Face
LM2 RG Profile
LM2 WG Front
LM2 RG Face
LM2 WG Profile
LM2 RG Front
LM2 WG Face
LM2 P Front
LM2 WG Back


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  • design
  • movement
  • case & buckle
  • dial & hands
  • communication
  • accessories
Alexandre David
Steven Rogers
Martin Stettler
Marc André Deschoux
Maarten van der Ende
Benjamin Signoud
Régis Golay
Jean-François Mojon
Hervé Estienne
Guillaume Thévenin
Didier Dumas
Maximilian Büsser
Eric Giroud
Georges Veisy
Anne Guiter
Pierre Chillier
Stéphane Balet
Jacques-Adrien Rochat
Eddy Jaquet
Bertrand Jeunet
Guillaume Schmitz
Gérald Moulière
François Bernhard
Florian Courbat
Denis Parel
Félix Celetta
Yann Le Martret
Jean-Marc Naval
Olivier Berthon
Denis Garcia
Ian Skellern
Isabelle Chillier
Patricia Duvillard
David Lamy
Serge Kriknoff
Charris Yadigaroglou
Virginie Meylan
Emmanuel Maitre
Kari Voutilainen
Olivier Purnot
Victor Rodriguez
Rodrigue Baume
Dominique Mainier
Stefan Schwab
Anthony Franklin
Eléonor Picciotto


  • front
  • back



18k Red Gold


18k White Gold


Platinum 950
Limited Edition of 18 pieces

specs & manual

  • view specs
  • view manual


  • Three-dimensional horological movement developed exclusively for MB&F by Jean-François Mojon at Chronode, and Kari Voutilainen
  • Manual winding with single mainspring barrel
  • Power reserve: 45 hours
  • Differential: Planetary differential comprising 3 gears and 5 pinions
  • Balance wheels: Two bespoke 11mm balance wheels with four traditional regulating screws floating above the movement and dials
  • Balance spring: traditional Breguet curve terminating with stud holder
  • Balance frequency: 18,000bph/2.5Hz
  • Number of components: 241
  • Number of jewels: 44
  • Chatons: gold chatons with polished countersinks
  • Fine finishing: superlative hand finishing throughout, respecting 19th century style; polished internal bevel angles highlighting handcraft; polished bevels; Geneva waves; hand-made engravings


  • Hours and minutes
  • Planetary differential transmits the average rate of the two regulators to the single gear train.


  • Available in 18k red gold, 18k white gold, or platinum 950 in a limited edition of 18 pieces
  • Dimensions: 44mm wide x 20mm high
  • Number of components: 45

Sapphire crystals

  • High domed sapphire crystal on top and sapphire crystal on back with anti-reflective coating on both sides

Strap & Buckle

  • Black or brown hand-stitched alligator strap with 18k gold tang buckle to match case




  1. Hours & minutes
  2. planetary differential transmitting the average rate of the two regulators to the single gear train


Your watch is equipped with a manual winding movement, offering approximately 45 hours of power reserve. To wind it, keep the crown in position “in”; gently revolve the crown until you reach the maximum power reserve capacity (the crown will not turn more).

Time setting

Pull crown to position “out” and turn the crown to set the time. Push the crown back against the case when finished.