Blancpain Fifty Fathoms Flyback Chronograph Mens 5085F-3630-52. 18kt rose gold case with a black fabric bracelet. Unidirectional 18k rose gold/black PVD coated bezel. Black dial with gold-tone hands and indexes and Arabic numerals hour markers. Automatic movement. Caliber f185 (308 parts, 37 jewels) engine. Scratch resistant sapphire crystal. Screw-down crown. Sapphire transparent exhibition case back. Case diameter: 45mm. Case thickness: 15.5mm. Round case shape. Band width: 23mm. Band length: 8 inches. 18k rose gold tang clasp. Water resistant at 300 meters / 1000 feet. Functions: chronograph, date, hour, minute, second. Luxury watch.