This manual winding Richard Mille RM 52-01 "Skull" is a rare limited edition piece. Featuring the iconic skull design which has become a recogonisable symbol of the Richard Mille brand. Its tonneau shaped case is constructed from rose gold and ceramic and measures 50 mm x 42 mm. The upper and lower jaws hold the ruby of the tourbillon cage. The back of the skull is actually the movement’s center bridge. The power behind this skull is the Calibre RM 52-01 a manual winding tourbillon movement offering hours and minutes. The case is water resistant to 50 meters and it has a power reserve up to 48 hours. Complimented by a white rubber vented strap and secured with a rose gold buckle.