The IWC Portofino 3513 is a timeless watch for sophisticated gentlemen. It was popular in the late 1980s and early 2000s and features a self-winding movement. The case, available in yellow gold or stainless steel, has a diameter of 34mm and houses the automatic caliber 37521 movement. The reference IW3513-40 has a clean white dial with classic Roman numerals. It comes with a stylish stainless steel bracelet.