IWC DA VINCI KURT KLAUS CHRONOGRAPH QUANTIEME PERPETUEL LIMITED EDITION 50EX Reference: 3762-01. Serial number: 42/50 - 3299395. Platinum case. Light grey dial with four counters (seconds - days, date, hours - months and moon phase - minutes). Automatic mechanical movement (calibre 79261). Leather strap with platinum folding clasp signed IWC. Sapphire crystal. Circa 2010. Diameter: 43 mm. Gross weight: 228.59 g. A platinum wristwatch automatic movement, by IWC. Circa 2010.