The RM 055 Bubba Watson Boutique Edition has an upper bezel created using shot-blasted titanium carbide. Titanium carbide (TiC) is a titanium and carbon alloy with a hardness of 1450 Vickers, it was first used by Richard Mille in the creation of the armoured case of the Tourbillon RM 053 Pablo Mac Donough. Its hardness enables it to withstand extremes and therefore ensures outstanding durability.
The caseband and caseback are made using shot-blasted titanium. The manufacturing process involves shot-blasting the grade 5 titanium case with miniscule glass beads at a low pressure to ensure an even finish and thus creating the ‘all grey’ effect. The caseback includes the limited edition number engraved at the 6 o’clock position.
The manual winding caliber RMUL2 in grade 5 titanium displays extreme skeletonisation, 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.
Originally designed in collaboration with Bubba Watson, one of the most powerful hitters on the PGA Tour, the caliber RMUL2 is capable of withstanding accelerations of over 500-G’s.