18k white gold case with a black alligator leather strap. Fixed bezel. Slate grey dial with silver-toned hands and Arabic numeral hour markers. Minute markers around the outer rim. Dial Type: Analog. Perpetual calendar. Four Sub-dials - moonphase, month, combined day and 60 seconds, combined date and power reserve. Automatic movement. Scratch resistant sapphire crystal. Transparent case back. Case diameter: 44.2 mm. Case thickness: 15.3 mm. Round case shape. Water resistant at 30 meters / 100 feet. Functions: hour, minute, second, perpetual calendar, moonphase. Luxury watch style. Watch label: Swiss Made. IWC Portugeiser Perpetual Calendar Slate Grey Dial 18K White Gold Automatic Mens Watch IW503301.