18kt white gold case. Black hand-sewn full grain alligator strap. Guilloche silvered dial with central rose motif. 8-day power reserve. Large date and small second complications. 18kt white gold octagonal crown set with a faceted sapphire. 18kt white gold adjustable deployment buckle. Mechanical movement with manual winding. Scratch resistant sapphire crystal. Transparent caseback. Case diameter 32mm. Case thickness 5.3mm. Water resistant at 30 meters (100 feet). Cartier Tortue 8-Day Power Reserve 18kt White Gold Mens Watch W1545951 