Richard Mille RM055 BUBBA WATSON

Calibre RMUL2

Manual winding skeletonised movement with hours, minutes and seconds.

The RM 055 Bubba Watson is inspired by the RM 038 Bubba Watson tourbillon watch presented in 2011. Its mechanical movement in grade 5 titanium displays extreme skeletonization, with a PVD- and Titalyt® treated baseplate and bridges. This combination provides the whole structure with optimum rigidity and excellent surface flatness and finish, essential aspects for the perfect functioning of the gear train. The caliber RMUL2 is thus capable of withstanding accelerations of over 500 g’s.

The movement is equipped with a variable-inertia balance wheel, which ensures reliability in the event of impacts and during assembly and dismantling, thus improving the long-term accuracy of the timepiece. The regulator index is eliminated, and a more accurate and repeatable inertia adjustment is possible thanks to four small adjustable weights located directly on the balance wheel. The doublebarrel mechanism helps to improve and equalize long-term torque stability: This is achieved by dispersing the stored energy within two winding barrels, equalizing torque as well as reducing pressure and friction on the bearings and pivots, resulting in improved long-term performance.