IWC Schaffhausen Portofino Chronograph

The IWC Schaffhausen Portofino Chronograph IW391029, a chronograph, has a stainless steel case measuring 42 mm across. The case has a thickness of 13.6 mm and a lug width of 20 mm. A black alligator leather strap is fitted to the watch. The self-winding movement is calibre 79320, giving 44 hours of power reserve. A convex sapphire crystal with antireflective coating on both sides covers the black dial. The dial shows small seconds, a date and a weekday display, along with chronograph counters for hours, minutes and seconds. Water resistance is rated to 30 metres.