18kt yellow gold case, fixed fluted ring bezel. Champagne dial with luminous yellow gold-tone hands and index hour markers including minute indicators around the outer rim. Date display at the 3 o'clock position, analog dial type, and a 24-hour sub-dial visible through apertures in the sapphire crystal. Screw down crown, solid case back. Automatic movement (calibre 9001) with approximately 72 hours power reserve, beating at 28800 vph, powered by 40 jewels and containing 380 parts. Sapphire crystal lens resistant to scratches. Water resistant up to 100 meters / 330 feet. Annual calendar function (including month leap automatically), GMT hand with 24-hour indicator via sub-dial or second time zone bezel, date complication visible at the 3 o'clock position, hour and minute hands, luminous markers for night readability, seconds function indicated by a sweep second hand.