IWC Schaffhausen Portugieser Perpetual Calendar Digital Date-Month Edition "75th Anniversary"

The IWC Portugieser Perpetual Calendar Digital Date-Month Edition "75th Anniversary", reference IW397203, is a chronograph with a 45 mm case in 18-carat 5N gold. This special edition has a perpetual calendar; the case is 16 mm thick. Self-winding calibre 89801 has a 68-hour power reserve and 51 jewels. The silver dial, covered by arched-edge sapphire glass, has a large double-digit date display, small hacking seconds and a flyback function. The watch is on a dark brown alligator leather strap by Santoni. The case's water-resistance rating is 30 metres. The calibre has an operating frequency of 28,800 vibrations per hour.