MB&F X Alain Silberstein - The Geneva Watch Auction: XVIII Geneva Friday, November 3, 2023 | Phillips
  • Manufacturer: MB&F X Alain Silberstein
    Year: 2010
    Case No: Caseback engraved "Unique Piece"
    Model Name: Horological Machine 2.2 "Chocolate Box" Unique Piece
    Material: Silicium PVD coated titanium
    Calibre: Automatic, cal. HM2, 44 jewels
    Bracelet/Strap: Leather
    Clasp/Buckle: Titanium MB&F/Silberstein deployant clasp
    Dimensions: 59mm width x 38mm length
    Signed: Case and buckle signed MB&F /Alain Silberstein, dial and movement signed MB&F
    Accessories: Accompanied by MB&F fitted box, International Guarantee dated 27 July, 2020, product literature, setting pin and outer packaging.

  • Catalogue Essay

    Launched in 2008 the Horological Machine 2 was as much UFO as it was a kinetic wrist sculpture.

    Staying true to Maximilian Büsser’s unique interpretation of independent watchmaking, the HM2 is the world’s first mechanical engine to offer an instantaneous jumping hour, concentric retrograde minutes and date, bi-hemisphere moon phase with automatic winding movement.

    Shortly after Max Büsser contacted Alain Silberstein, the genius designer/watchmaker best known for his playful and colorful designs to reinterpret the HM2 in the “Silberstein way” (and this is years before Silberstein became the designer so many brands wanted to work with).

    The result was the Horological Machine 2.2 made in only 8 pieces, where Silberstein didn’t just add his touches of color but completely redesigned the watch.

    While the twin porthole dials are still the focal point – though now with the jumping hours in an aperture for the first time – the watch’s personality has changed completely - gone is the science-fiction look of the original. Silberstein says that his aim was for Horological Machine N°2.2 to combine the pure geometry of the Bauhaus with the user-friendliness of the miniature box cameras of the 1940s.

    The jumping hours, on the right-hand dial, are presented in an aperture, which is framed by the concentric retrograde minutes. The left-hand dial presents the retrograde date and the moon phase.

    The present example of the Horological Machine 2.2 is the rarest one as it is a unique piece with chocolate colored PVD coating (whereas the limited edition pieces were black), explaining its nickname "Chocolate Box" and giving the watch incredible appeal.

    Please note that MB&F generously offers a complementary servicing of the watch to the winning bidder within a period of 6 months after the sale.


A unique and unusual brown colored silicium PVD coated titanium jump hour wristwatch with retrograde minutes, date, bi-hemisphere moon phases box and guarantee

59mm width x 38mm length
Case and buckle signed MB&F /Alain Silberstein, dial and movement signed MB&F

CHF25,000 - 50,000 

Sold for CHF304,800

Contact Specialist

Alexandre Ghotbi
Deputy Chairman, Watches, Head of Watches, Europe, and Middle East

+41 79 637 17 24

Tiffany To
Head of Sale, Geneva

+41 79 460 55 88


The Geneva Watch Auction: XVIII

Geneva Auction 3 - 4 November 2023