The IWC Portofino 3513 is a classical gentleman’s watch with self-winding movement that was available from the late 1980’s to the early 2000’s. Its case, in yellow gold or stainless steel, measured 34mm across, housing the automatic caliber 37521 movement.The Portofino ref. 3513-017 has a stainless steel case and a silver dial with Breguet numerals.
