MB&F Horological Machine No. 2 Diamond-Set

About this reference

The MB&F Horological Machine No. 2 (HM2) Diamond-Set 20 was released circa 2009 as a limited edition of 20 pieces. This reference features a modular case construction combining 18k white gold and titanium, measuring 59mm x 38mm x 13mm. It utilizes the Girard-Perregaux based HM2 engine, a Jean-Marc Wiederrecht-designed movement featuring the first mechanical movement to offer instantaneous jumping hours, concentric retrograde minutes, retrograde date, and a bi-hemisphere moon phase. The "Diamond-Set" designation refers to the 20 diamonds totaling 0.54 carats set into the case. Collectors value the HM2 as the brand’s second-ever release, representing the early architectural era of Max Büsser’s designs. On the secondary market, this specific reference typically trades in the $60,000 to $90,000 range. A notable production detail is that the HM2 series was officially retired in 2011 with the final "Black Box" edition.