IWC Schaffhausen Portugieser Grande Complication

The IWC Portugieser Grande Complication, reference IW377401, is a chronograph with a 45 mm platinum case. The watch has a perpetual calendar and a minute repeater. The watch's case has a thickness of 16.5 mm. Self-winding calibre 79091 has a 44-hour power reserve and 75 jewels. Behind arched-edge sapphire glass, the silver dial has a day and date display, small hacking seconds and a moon phase display. A black alligator leather strap is on the watch. The case carries a water-resistance rating of 30 metres. Côtes de Genève, perlage and polishing are among the movement's finishes.