IWC Schaffhausen Portugieser Perpetual Calendar Edition "Arije"

The IWC Portugieser Perpetual Calendar Edition "Arije", reference IW502310, has a 44.2 mm case in white gold. This special edition has a perpetual calendar; case thickness is 15.5 mm. Calibre 51613 is self-winding and has a 168-hour power reserve and 62 jewels. Convex sapphire glass covers the brown dial with a day and date display, small hacking seconds, a power reserve indicator and a moon phase display. The watch has a dark brown alligator leather strap. Water resistance is rated to 30 metres. Côtes de Genève and perlage are among the movement's finishes.