The winding barrel and the tourbillon are both placed in the central depth of this aerodynamic structure, balancing on light and airy bridges with four arms on two sides. A function selector, a power reserve and torque indicators help the user to master perfectly the performance of the RM 21-02 Tourbillon Aerodyne. The whole system is maintained with grade 5 titanium, black and grey PVD treated bridges. The complex structure of the RM 21-02 case mixes 3 different materials. The bezel is in green Quartz TPT® and Carbon TPT®, a material also used for the pillars, integrated into the titanium caseband. #RichardMille #RM2102