Cartier Style No: W1556239 Cartier Rotonde de Cartier Chronograph Watch

40mm 18K white gold case, 12.15mm thick, sapphire back, beaded 18K white gold crown set with a sapphire cabochon, sapphire crystal, blue guilloché dial with silvered counters, rhodiumized steel apple-shaped hands and blued-steel sword-shaped counter hands, caliber 1904-CH MC self-winding movement with calendar aperture at 6 o'clock, dark blue semi-matte alligator skin strap, double adjustable folding 18K whte gold buckle. Water resistant to 30 meters.