Platinum case with a black alligator leather strap. Fixed platinum bezel. Silver dial with silver-tone hands and Arabic numeral hour markers. Minute markers around the outer rim. Dial Type: Analog. Perpetual calendar with month, day of the week and date sub-dials. Year display between the 7 and 8 o'clock positions. Small seconds sub-dial and power reserve indicator. Automatic movement with seven day power reserve. Caliber 51613 engine. Scratch resistant sapphire crystal. Pull / push crown. Skeleton case back. Case diameter: 44.2 mm. Case thickness: 15.5 mm. Round case shape. Deployment clasp with push button. Water resistant at 30 meters / 100 feet. Functions: chronograph, year, month, day, date, hour, minute, second, moonphase. Luxury watch style. Watch label: Swiss Made. IWC Portuguese Perpetual Calendar Automatic Platinum Men's Watch IW502305.