Richard Mille presents the Tourbillon RM 51-02 Diamante Twister. As the name suggests, the watch is embellished with a cascade of diamonds formed by the 14 arcs placed, like a spiral, around the tourbillon at 6 o'clock on the dial. Diamonds are also on the crown; the same goes for the case, with the addition of black and white sapphires. The hand-wound RM51-02 calibre is fitted with a black onyx plate. The bevels, as well as the mirror polish on the entire movement, are obtained by manual finishing operations. An additional safety mechanism, consisting of the dynamometric crown, prevents over-winding, which could damage the winding system or exert too much pressure on the barrel spring. The watch will be available in a limited edition of 30 pieces.