77301bc.zz.d301cr.01. 18kt white gold oval case (size: 39.5mm). Alligator leather strap in blue fixed via screw-down 18kt white gold buckle set with cabochon-cut sapphire stone and surrounded by a bezel set with 62 diamonds (.62 carats). Mother of pearl dial featuring luminous hour/minute/second hands and blue hour markers. Analog dial displaying hours, minutes, seconds. Powered by an Audemars Piguet Calibre 2325 automatic movement (32 jewels) operating at a frequency of 28800 vph with approximately 38-hour power reserve. Protected by scratch-resistant anti-reflective sapphire crystal glass. Solid screw-down case back. Water resistant to 100 feet / 30 meters depth. Swiss Made luxury watch.