RICHARD MILLE : A technical whirlwind

Tourbillon RM 51-02 Diamant Twister

CASE : steel entirely set with white diamonds and black saspphires, gemset dynamometric crown, 12 spline screws in grade 5 titanium, sapphire back, water-resistant to 50m

SIZE : 47.95 x 39.70mm

MOVEMENT : mechanical manual-winding (Caliber RM51-02, 48h power reserve) shock-absorbing device, nickel-free Chronifer barrel arbor, PVD coating apart from the black onyx mainplate, manual finishing

FUNCTIONS : hours, minutes, tourbillon, powerreserve display between 10 and 11 o’clock

DIAL : openworked white gold set with 270 diamonds

STRAP : alligator leather with gold pin buckle


Just as there are very few brands capable of successfully combining High Jewelry with hightech Fine Watchmaking, only a fortunate few will wear the Tourbillon RM 51-02 Diamant Twister. One cannot reduce the supreme sophistication of this Richard Mille limited edition to its 270 diamonds spiraling across the gold dial and titanium bridges, nor to the over 300 operations required to create the typical Richard Mille three-part case, whose rounded shape is accentuated by black sapphires on this model. Welcome to the micromechanical world of cutting, stamping, milling, polishing and satin-brushed, taken to extremes on this classic Richard Mille curving design that is extremely comfortable to wear but very complex to achieve. This pursuit of the exceptional is reflected in the black onyx mainplate visible through the back, which Richard Mille describes as “a stone that embodies balance and inspiration”. It is equally apparent in the manual finishing lavished on the movement, while fans of performance will appreciate the tourbillon, the variable inertia balance wheel, the balance wheel with progressive recoil – as well as the dynamometric crown set with precious stones that can be wound so as to display the maximum power reserve on a rotating disk between 10 and 11 o’clock. With Richard Mille, diamonds are not only forever, but also resolutely avant-garde.

Brice Lechevalier is editor-in-chief of GMT and Skippers, which he co-founded in 2000 and 2001 respectively. He has also been CEO of WorldTempus since it joined the GMT Publishing stable, of which he is director and joint shareholder. In 2012 he created the Geneva Watch Tour, and he has been an advisor to the Grand Prix d’Horlogerie de Genève since 2011. Also closely involved in sailing, he has published the magazine of the Société Nautique de Genève since 2003, and was one of the founders of the SUI Sailing Awards in 2009 and the Concours d’Elégance for motor boats at the Cannes Yachting Festival in 2015.

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