IWC Schaffhausen Portugieser Perpetual Calendar

The IWC Portugieser Perpetual Calendar, reference IW502306, has a 44.2 mm case in 18-carat 5N gold. The watch has a perpetual calendar; the case has a thickness of 15.5 mm. Self-winding calibre 51613 has a 168-hour power reserve and 62 jewels. The silver dial has a day and date display, small hacking seconds, a power reserve indicator and a moon phase display. A dark brown alligator leather strap is on the watch. A water-resistance rating of 30 metres applies to the case. The dial is covered by convex sapphire glass with antireflective coating on both sides.