18kt white gold case with a black alligator leather strap. Fixed 18kt white gold bezel. Black dial with index hour markers. Dial Type: Analog. Perpetual calendar - day and date display above center dial. Date / moonphase sub-dial subdials. Girard Perregaux Calibre GP033M0 automatic movement with a 46-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Transparent case back. Round case shape, case size: 40 mm, case thickness: 10.7 mm. Tang clasp. Water resistant at 30 meters / 100 feet. Functions: month, date, day, hour, minute, second, moonphases. Luxury watch style. Watch label: Swiss Made. Girard Perregaux 1966 FULL CALENDAR Watch 49535-53-651-BK6A.