IWC Schaffhausen Portugieser Perpetual Calendar Tourbillon

The IWC Portugieser Perpetual Calendar Tourbillon, reference IW504509, has a 45 mm platinum case. This watch is a limited edition of 50 pieces with a perpetual calendar and a flying minute tourbillon. The case measures 15.2 mm thick; self-winding calibre 51950 has a 168-hour power reserve and 54 jewels. The purple dial has a day and date display, a power reserve indicator and a moon phase display. The watch is on a black alligator leather strap by Santoni. The case carries a water-resistance rating of 30 metres. Arched-edge sapphire glass with antireflective coating on both sides covers the dial.