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MB&F

Maximilian Busser and Friends - the creative laboratory Max Busser founded in 2005 after leaving Harry Winston Rare Timepieces. MB&F produces two parallel lines: the sculptural Horological Machines (HM series), which treat the watch as a three-dimensional object, and the round Legacy Machines (LM series), which reinterpret classical horological architecture.

Founded2005
HeadquartersGeneva, Switzerland
FounderMaximilian Busser
ParentIndependent
WristBuzz Articles413
MB&F

Photo: Time+Tide · 6 days ago

2005Founded
HM seriesSculptural
LM seriesClassical
BusserMax
413WristBuzz Articles

The MB&F Story

Maximilian Busser was managing director of Harry Winston Rare Timepieces from 1998, where he conceived the Opus series - an annual collaboration between Harry Winston and an independent watchmaker (F.P. Journe, Antoine Preziuso, Vianney Halter, Christophe Claret). The Opus series became one of the defining creative projects of 2000s haute horlogerie and established Busser's reputation as a curator and collaborator. In 2005 he left Harry Winston to found MB&F - Maximilian Busser and Friends, a new creative house structured around the same collaborative philosophy.

The MB&F model treats each watch as a collaboration between Busser, an invited independent watchmaker, and a network of component specialists. The first piece - HM1 (Horological Machine No. 1) in 2007 - set the programme's identity: treat the watch as a three-dimensional sculptural object rather than a flat circular dial. Subsequent Horological Machines (HM2-HM11) have used animal shapes (frog, spider, octopus), vehicle references (rocket, helicopter), and abstract geometric forms, with hours and minutes read off rotating discs, domes, or cones rather than conventional hands.

In 2011 MB&F launched the parallel Legacy Machines (LM) line, using conventional round 40-44mm cases but with radically reinterpreted movement architecture - typically with a large suspended balance wheel visible dial-side above the plate. LM1 (2011) and LM101 (2014) established this language; LM Perpetual (2015), LM Thunderdome (2019), and LM Split Escapement (2019) extended it to complications. MB&F remains independently owned, produces around 200-300 watches per year total, and operates from a Geneva workshop together with the MAD Gallery exhibition space.

Iconic Collections

Since 2007
Horological Machines (HM)
The sculptural series. Each reference is a distinct 3D object - HM1 (tubes), HM2 (retrograde), HM3 Frog (domes), HM6 Space Pirate (bulbous), HM9 Flow (car/plane), HM10 Bulldog (animal). Hours and minutes typically on rotating discs or domes.
Since 2011
Legacy Machines (LM)
The round-case series. 40-44mm cases with large suspended balance wheels visible dial-side, three-dimensional dial architecture, classical movement finishing. LM1 through LM Sequential EVO currently in production.
Since 2020
LMX
The 10-year-anniversary LM. Dual time zones displayed on two independent dials, 44mm case, hand-finished movement. Marked the 10-year anniversary of the Legacy Machines line.
Since 2015
LM Perpetual
The perpetual calendar Legacy Machine. Stephen McDonnell-designed perpetual calendar mechanism with instantaneous switching and no reset risk. A reference complication in modern independent watchmaking.
Since 2017
LM Split Escapement / Thunderdome
The technical Legacy Machines. Split-escapement layout (Thomas Mercier and Kari Voutilainen); Thunderdome uses a triple-axis tourbillon with 8-second full-rotation period.
Since 2009
HM Performance Art / Only Watch / Limited Editions
The small-series and one-off programme. Includes the HM11 Architect and the HM4 Thunderbolt variants, many produced in runs of 8-33 pieces. The Only Watch charity auction contribution pieces are also in this category.

Heritage Timeline

1998-2005
Maximilian Busser leads Harry Winston Rare Timepieces and conceives the Opus series of collaborations with independent watchmakers.
2005
Busser leaves Harry Winston to found MB&F in Geneva, structured around the Friends collaborative model.
2007
HM1 (Horological Machine No. 1) launches, establishing the sculptural 3D object approach to watchmaking.
2011
Legacy Machine LM1 launches, opening the parallel round-case classical-architecture series.
2015
LM Perpetual debuts with the Stephen McDonnell-designed perpetual calendar mechanism, a reference complication in independent watchmaking.
2019
LM Thunderdome (triple-axis tourbillon) and LM Split Escapement consolidate the technical position of the Legacy Machines line.

Latest MB&F News

New releases from MB&F;, Hanhart, Angelus and more
Time+Tide
New releases from MB&F;, Hanhart, Angelus and more
6 days ago
Max Maertens Dishes on His Creative Process in Designing the New MB&F; HM12
Worn & Wound
Max Maertens Dishes on His Creative Process in Designing the New MB&F; HM12
Jun 10, 2026
First Look – The New MB&F; HM12 The Guardian, A Sci-Fi Horological Machine with a Robot Companion
Monochrome
First Look – The New MB&F; HM12 The Guardian, A Sci-Fi Horological Machine with a Robot Companion
Jun 10, 2026
Guardian of the MB&F; Galaxy: HM12 The Guardian
Revolution
Guardian of the MB&F; Galaxy: HM12 The Guardian
Jun 10, 2026
MB&F; spent years developing its new HM12 ‘The Guardian’ and once all 36 pieces are sold it is gone for good
Time+Tide
MB&F; spent years developing its new HM12 ‘The Guardian’ and once all 36 pieces are sold it is gone for good
Jun 10, 2026
Max-imum cool: MB&F; HM12 “The Guardian”
SJX Watches
Max-imum cool: MB&F; HM12 “The Guardian”
Jun 10, 2026
MAXimum Cool: MB&F; HM12 “The Guardian” is a Robot Watch-Clock
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MAXimum Cool: MB&F; HM12 “The Guardian” is a Robot Watch-Clock
Jun 10, 2026
Introducing: The MB&F; Horological Machine HM12 'The Guardian' Is The Robot And Watch Combo Of Your Dreams (Live Pics)
Hodinkee
Introducing: The MB&F; Horological Machine HM12 'The Guardian' Is The Robot And Watch Combo Of Your Dreams (Live Pics)
Jun 10, 2026
New and reviewed: MB&F; HM12 The Guardian
Deployant
New and reviewed: MB&F; HM12 The Guardian
Jun 10, 2026
New releases from Jaeger-LeCoultre, Armin Strom, MB&F; and more
Time+Tide
New releases from Jaeger-LeCoultre, Armin Strom, MB&F; and more
May 23, 2026
Introducing – The Gem-Set Trilogy of MB&F; LM Perpetual Chromatic Editions
Monochrome
Introducing – The Gem-Set Trilogy of MB&F; LM Perpetual Chromatic Editions
May 22, 2026
Chromatic and Dramatic: MB&F; Debuts Coloured Gems for the LM Perpetual
SJX Watches
Chromatic and Dramatic: MB&F; Debuts Coloured Gems for the LM Perpetual
May 22, 2026
View all 413 articles

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