After
link its introduction in 1998, there's a reason IWC left the Portugieser Chronograph unchanged for the next two decades: don't mess with success. Sure, it's large – a 41mm diameter and
link slim bezel mean it wears big – but the minimal design and relatively thin case (12.5mm) make it completely balanced. Inside, the
link Valjoux 7750 ticks reliably.