Grey niobium-titanium case with a black alligator leather strap. Fixed grey titanium bezel. Slate guilloche dial with blued-steel sword-shaped hands and Roman numeral hour markers. Minute markers around an inner ring. Dial Type: Analog. One subdial displaying: tourbillon. Cartier Calibre 9800 MC Automatic movement, containing 43 Jewels, composed of 281 parts, bitting at 21600 vph, and has a power reserve of approximately 54 hours. Scratch resistant sapphire crystal. Titanium crown set with a sapphire cabochon crown. Skeleton case back. Round case shape, case size: 50 mm, case thickness: 18 mm. 18 kt white gold deployment with push button clasp. Water resistant at 30 meters / 100 feet. Functions: tourbillon, hour, minute. Additional Info: oscillating weight bearing the escapement. Rotonde De Cartier Series. Luxury watch style. Watch label: Swiss Made. Cartier Rotonde de Cartier Astroregulateur Titanium Men's Watch W1556211.