Founded in 2005, MB&F redefined the boundaries of watchmaking by creating the world’s first horological concept laboratory. Under the visionary direction of Maximilian Büsser, Founder and Creative Director, the brand transforms traditional craftsmanship into dynamic three-dimensional kinetic art. With nearly 20 calibers forming the foundation of its celebrated Horological and Legacy Machines, MB&F continues to shape a new era of imaginative precision.

MB&F Legacy Machine No. 1 Longhorn Piece Timepiece

A Decade of Innovation and Legacy

To celebrate its 10th anniversary, MB&F will auction one of the original Legacy Machine No.1 (LM1) prototypes—an extraordinary opportunity for collectors. The debut LM1 collection first appeared in 2011, marking a milestone in the brand’s creative evolution. Its final edition, released in 2017 with just 18 pieces, closed a defining chapter and opened new pathways for horological exploration.

Since every LM1 edition has long sold out, this auction presents the only remaining chance to own a true part of MB&F’s heritage. As one of the few Pièces Uniques ever produced, this prototype embodies rarity and artistry at their purest.

MB&F Legacy Machine No. 1 Longhorn Piece Timepiece

The LM1 Longhorn: A Singular Masterpiece

Following the success of the HM4 Thunderbolt prototype, which found its way into a private collection, MB&F is offering the LM1 Longhorn under more inclusive terms. To ensure fairness among global enthusiasts, Maximilian Büsser announced that the watch will go to auction on 7 November in Geneva, hosted by Phillips in Association with Bacs & Russo.

Unlike conventional sales, this event carries a philanthropic spirit — a significant portion of the proceeds will benefit Save the Rhino International, a charity dedicated to wildlife conservation. This gesture mirrors MB&F’s belief that true luxury should create lasting impact beyond craftsmanship.

MB&F Legacy Machine No. 1 Longhorn Piece Timepiece

A Collector’s Moment

The LM1 Longhorn Pièce Unique will cross the block the day after the prestigious Only Watch Auction, where MB&F will unveil another bespoke creation, the HM10 Panda. Together, these releases underscore the maison’s commitment to creativity, rarity, and purpose.

MB&F Legacy Machine No. 1 Longhorn Piece Timepiece

For connoisseurs of design and detail, this is not merely an auction — it is a moment in horological history. For more information about Save the Rhino International, visit www.savetherhino.org.