IW5034-04Ref

In 2015, IWC refreshed its Portugieser line for the 75th anniversary, introducing significant updates to the Perpetual Calendar model, including a new case, dial, and arched crystal. The movement features a 7-day power reserve, twin barrels, and the classic perpetual calendar module with a four-digit year display. This version, reference IW5034-04, pairs a red gold case with an ardoise dial and a black Santoni alligator strap.