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Legacy Machine 101 (LM101)

The MB&F Legacy Machine 101, or LM101, is the watch that made Maximilian Busser's independent brand wearable for people who do not want a spaceship on the wrist. When it landed at Baselworld 2014 it was the first Legacy Machine built around a movement conceived entirely in-house by MB&F, and the first MB&F piece small enough to read as a proper dress watch. The case is 40mm across and roughly 16mm thick, with a high-domed sapphire crystal that lets a 14mm suspended balance wheel float above the dial like it is defying gravity. Under it sit two subdials, hours and minutes at 12 and a power reserve indicator at 6, both in white lacquer with a hand-frosted or vertical-brushed base plate depending on the edition. This is the entry point to MB&F collecting, but entry point does not mean cheap: retail ran from roughly CHF 49,000 for the later steel version up to CHF 64,000 for gold, and the movement finishing was specced by Kari Voutilainen. We stand behind a counter on 47th Street that has been family-run since 1959, we see plenty of independents cross the glass, and the LM101 is the MB&F we get asked about most by collectors making their first jump out of Rolex and Patek. If you own one and want a real number, or you want to buy one that has been checked over by people who know the caliber, bring it to 19 West 47th Street.

Specifications

Case Size40mm diameter
Thicknessapproximately 16mm (16.5mm on the EVO)
Lug To Lug49mm (EVO figure; classic LM101 sits close to this)
Case Materials18k white gold, 18k red gold / pink gold, 18k yellow gold (Frost editions), platinum 950, palladium 950 (2019), stainless steel (2021 editions), titanium (LM101 EVO, 2025)
CrystalHigh-domed sapphire on top plus box sapphire display back, anti-reflective coating on both faces
CaliberManufacture LM101 caliber, manual wind, single mainspring barrel; first movement developed entirely in-house at MB&F
Components And Jewels229 components, 23 jewels set in gold chatons with polished countersinks
Balance WheelBespoke 14mm suspended balance wheel floating above the dial with four traditional regulating screws
HairspringTraditional Breguet overcoil with mobile stud holder on the classic LM101; Straumann double hairspring on the LM101 EVO
Frequency18,000 vph (2.5 Hz)
Power Reserve60 hours (MB&F current spec; some early 2014 press cited 45 hours)
FunctionsHours and minutes at 12 o'clock, power reserve indicator at 6 o'clock, suspended balance wheel display
FinishingMovement aesthetic and finishing specified by Kari Voutilainen: Geneva stripes, hand-bevelled curved bridges with large anglage, hand engraving
Water ResistanceSplash resistant on the classic LM101 (a dress piece, not a diver); 80m on the LM101 EVO with screw-down crown
CrownCrown at 4 o'clock on the classic LM101; screw-down crown on the EVO
Year Introduced2014 (LM101 EVO introduced 2025 for MB&F's 20th anniversary)

History

Iconic References

Buying Guide

Pricing & Market Data

Cultural Significance

Collector's Lore

The through-line of the LM101 is Maximilian Busser's own story. He ran the Opus collaboration series at Harry Winston, the program that put independent watchmakers in front of a big-brand audience, before founding MB&F in 2005 to build under his own name. The 'F' in MB&F stands for Friends, and the friend who shaped the LM101 was Kari Voutilainen, brought in to set the movement's finishing brief, which is why the anglage and the frosted dials on the Frost editions look like they belong on a watch costing far more. Collectors prize the suspended balance wheel not just for the look but because floating it above the dial on its own bridge is genuinely harder to engineer and regulate than tucking it under the movement. The Frost dial finish is a direct nod to 18th century Breguet pocket watches, where frosting the plates was standard practice. And the name itself, Legacy Machine, is the joke that carries the whole line: a machine built as the legacy of a great watchmaker who never existed, imagined as what he would have made if he had been born a hundred years later and lived to see the Horological Machines.

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