(646) 220-7487
Ultimate.

MB&F Legacy Machine Guide: LM1, LM101, LM Perpetual, Sequential EVO | Ultimate Watch

The Legacy Machine is the answer to a question Maximilian Busser asked himself around 2010: what would MB&F have built if the brand had been founded in 1911 instead of 2005? The Horological Machines that came before it were spaceships and jet engines. The Legacy Machine kept the three-dimensional movement architecture but poured it into a round case with a domed crystal, classical finishing, and a giant balance wheel suspended above the dial like a chandelier. The first one, Legacy Machine No.1, arrived in 2011 with a movement developed by Jean-Francois Mojon and finished to specifications set by Kari Voutilainen, and it won both the Public Prize and the Best Men's Watch prize at the 2012 Grand Prix d'Horlogerie de Geneve. Fifteen years on, the Legacy Machine line covers everything from a clean 40mm time-only piece to a triple-axis tourbillon and the perpetual calendar that rewrote how perpetual calendars are built. We handle these at our counter on 47th Street more often than most people would guess, because New York is one of the deepest markets in the world for independent watchmaking, and MB&F even opened its own lounge here. When a Legacy Machine walks in, we know exactly what we are looking at and what it is worth.

Specifications

CollectionMB&F Legacy Machine (LM series)
Produced2011 to present
Case Sizes38.5mm (LM FlyingT) to 44mm (LM1, LM2, LMX, LM Thunderdome, LM Sequential EVO); LM101 is 40mm
Case Materials18k red gold, 18k white gold, 18k yellow gold, platinum 950, palladium, grade 5 titanium, stainless steel, tantalum, zirconium
MovementsAll manually wound except the automatic LM FlyingT; frequencies of 18,000 vph (2.5 Hz) on most models and 21,600 vph (3 Hz) on LM Thunderdome and LM Sequential EVO
Signature FeatureOversized flying balance wheel suspended on arched bridges above the dial; LM1 uses a 14mm balance, LM2 uses twin 11mm balances linked by a planetary differential
Power Reserve45 hours (LM1, LM2, LM101, LM Thunderdome) to 72 hours (LM Perpetual, LM Sequential EVO), 100 hours (LM FlyingT), 168 hours from three barrels (LMX)
Water Resistance30m on classic round-case models; 80m on the sportier EVO cases with screw-down crowns
Movement DevelopersJean-Francois Mojon and Kari Voutilainen (LM1, LM2), in-house MB&F with Voutilainen finishing specs (LM101), Stephen McDonnell (LM Perpetual, LM Sequential EVO), Eric Coudray with Kari Voutilainen (LM…
Notable Component CountsLM1: 279 parts, 23 jewels. LM Perpetual: 581 parts, 41 jewels. LM Sequential EVO: 585 parts. LM Thunderdome: 413 parts, 63 jewels. LM FlyingT: 280 parts, 30 jewels.

History

Iconic References

Buying Guide

Pricing & Market Data

Cultural Significance

Collector's Lore

A few things collectors trade over coffee: Busser has said the Legacy Machine was born from imagining what he would have built if he had been born in 1867 instead of 1967, which is why the movement side of an LM1 looks like a 19th century pocket watch and the dial side looks like nothing before it. The LM1's 2012 GPHG double, jury prize plus public prize, had not happened for a brand that young, and it converted the classical establishment in one evening. Kari Voutilainen's involvement is not a marketing garnish: he set the finishing specifications and his name is on the movement, and early LM buyers were effectively getting Voutilainen-spec finishing years before his own waitlist became impossible. Stephen McDonnell was a near-unknown when Busser handed him the perpetual calendar project; the story inside the community is that MB&F took the bet after McDonnell helped assemble early prototypes, and the LM Perpetual and the Aiguille d'Or-winning Sequential EVO made him one of the most respected complication architects alive. The Thunderdome's entire triple-axis rotating assembly weighs about one gram, 413 parts of it. And the Sequential EVO's Twinverter is the rare complication that created a new function outright: chess players genuinely use the cumulative mode, which no chronograph before it could do mechanically. The whole line is proof that a company making a few hundred watches a year can bend the direction of an industry making tens of millions.

Related Guides

Own a MB&F?

We buy MB&F watches at competitive prices. Fast payment, no obligation quote.

CallSource a Watch