18kt white gold case with a black alligator leather strap. Fixed 18kt white gold bezel. Slate guilloche dial with blued-steel sword-shaped hands and black Roman numeral hour markers. Minute markers around an inner ring. Dial Type: Analog. One subdial displaying: tourbillion. Cartier Calibre 9452 MC Hand Wind movement, containing 19 Jewels, composed of 142 parts, bitting at 21600 vph, and has a power reserve of approximately 50 hours. Scratch resistant sapphire crystal. 18 kt white gold set with sapphire cabochon crown. Skeleton case back. Round case shape, case size: 46 mm, case thickness: 12.9 mm. Deployment with push button release clasp. Water resistant at 30 meters / 100 feet. Functions: tourbillion , hour, minute. Additional Info: tourbillon. Ballon Bleu De Cartier Series. Luxury watch style. Watch label: Swiss Made. Cartier Ballon Bleu Flying Tourbillon XL 18 kt White Gold Men's Watch W6920021.