IW3513-39

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. It's case, in yellow gold or stainless steel, measured 34mm across, housing the automatic caliber 37521 movement. Reference IW3513-39 has a Stainless Steel case and a White Railroad-style dial.