IWC Schaffhausen Portofino Automatic Day & Night 34

The IWC Schaffhausen Portofino Automatic Day & Night 34, reference IW659802, has an 18 ct 5N gold case measuring 34 mm across. The case stands 8.9 mm thick and carries a convex sapphire crystal treated with antireflective coating on both sides. The self-winding calibre 35180 runs at 28,800 vibrations per hour and holds a power reserve of 50 hours. The silver plated dial carries a central seconds display along with a day and night indication. A taupe calfskin strap with a quick-change system is fitted to the watch, sized to a 16 mm lug width. Water resistance is rated to 50 metres. The movement holds 24 jewels.