Cartier Calibre de Cartier Chronograph Watch - 42 mm Steel Case - Silver Dial - Black Alligator Strap - W7100046

42 mm by 12.6 mm thick stainless steel case, heptagonal crown set with a sapphire, stainless steel bezel with rail track, sapphire crystal, silver dial with partly snailed opaline, silver finish chamfers and luminescent sword shaped black oxidized steel hands, caliber 1904-CH MC automatic movement with chronograph and calendar aperture at 6 o'clock, black alligator strap, stainless steel buckle double deployant. Water resistant to 30 meters.