IWC Schaffhausen Portugieser Perpetual Calendar Edition "Boutique Shanghai"

The IWC Portugieser Perpetual Calendar Edition "Boutique Shanghai", reference IW503307, has a 44.2 mm steel case. This special edition has a perpetual calendar; the watch's case has a thickness of 14.9 mm. Self-winding calibre 52610 has a 168-hour power reserve and 54 jewels. Behind arched-edge sapphire glass, the silver dial has a day and date display, small hacking seconds, a power reserve indicator and a moon phase display. The watch has a water-resistance rating of 30 metres. A see-through case back displays the movement. A dark brown alligator leather strap by Santoni measures 22 mm wide.