L.U.C Skull One Technical Specifications Ref. 161950-5001 – Eight-piece limited edition in beadblasted ethical 18-carat rose gold Functions and displays Central display of the hours and minutes Movement Mechanical self-winding L.U.C 96.53-L Number of components 172 Total diameter 27.4 mm Thickness 3.30 mm Number of jewels 27 Frequency 28,800 vph (4 Hz) Power reserve 58 hours Two barrels – Chopard Twin technology Winding via a tungsten alloy micro-rotor Balance-spring with flat terminal curve Bridges adorned with Côtes de Genève motif Case Beadblasted ethical 18-carat rose gold Total diameter 40.00 mm Thickness 7.20 mm Water resistance 30 metres Crown in beadblasted ethical 18-carat rose gold 5.00 mm Glare-proofed sapphire crystal Exhibition case-back – tinted glass Dial and hands Dial in a black colour obtained by galvanic treatment, sunburst satin-brushed, with calavera motif Lacquered finish Gilt Arabic numerals and hour-markers Gilt Dauphine-type hours and minutes hands Strap and buckle Brown calfskin leather strap with tone on tone stitching and lining Pin buckle in beadblasted ethical 18-carat rose gold