IWC Schaffhausen Portugieser Perpetual Calendar

The IWC Portugieser Perpetual Calendar, reference IW502305, has a 44.2 mm platinum case. The watch has a perpetual calendar; the case is 15.5 mm thick. Calibre 51613 is self-winding and has a 168-hour power reserve and 62 jewels. The silver dial, covered by convex sapphire glass, has a day and date display, small hacking seconds, a power reserve indicator and a moon phase display. The case's water-resistance rating is 30 metres. The rotor has an 18-carat gold medallion. The movement has Côtes de Genève and perlage decoration. A black alligator leather strap is on the watch.