Silver-tone stainless steel case with a black leather strap. Fixed stainless stee silver-tone stainless steel bezel. Silver dial with silver-toned hands and Arabic hour markers. Minute markers around the outer rim. Dial Type: Analog. Perpetual calendar. Four sub-dials displaying: moonphase, day of the week (60 second), month and date (power reserve). IWC Calibre 51613 Automatic movement, based upon IWC 51610, containing 62 Jewels, bitting at 21600 vph, and has a power reserve of approximately 168 hours. Scratch resistant sapphire crystal. Pull / push crown. Skeleton case back. Round case shape, case size: 44.2 mm, case thickness: 15.3 mm. Band width: 20 mm. Deployment with push button release clasp. Water resistant at 30 meters / 100 feet. Functions: perpetual calendar, moon phase, year, month, date, day, hour, minute, small second, power reserve indicator. Portuguese Perpetual Calendar Series. Luxury watch style. Watch label: Swiss Made. Pre-owned IWC Portuguese Perpetual Calendar Silver Dial Mens Watch IW502308.