The Richard Mille RM 52-06 Tourbillon Mask is a limited-edition timepiece that reimagines the brand's iconic skull design into a captivating mask motif. This avant-garde watch features a PVD-treated grade 5 titanium or white gold mask, seamlessly integrated into the movement to serve as both a wheel train and tourbillon bridge. The case measures 49.94 mm x 42 mm x 16.15 mm and is available in four limited editions, each limited to 18 pieces: Carbon TPT®, Quartz TPT®, blue and white Quartz TPT®, and red and white Quartz TPT®.