The IWC Portugieser Perpetual Calendar 42 (ref. IW344202) refines a signature complication within the brand’s most classical line. Released in 2020, this version blends a silver dial with a 42.4mm red-gold case – a size and tone that modernise the iconic Portugieser profile while preserving its nautical-inspired elegance.

Powering the watch is IWC’s in-house calibre 82650, an automatic movement from the 82000 family featuring central seconds, a moon phase display, and a perpetual calendar that accounts for leap years and month-end variations indefinitely with no manual correction needed. The Pellaton winding system delivers a 60-hour power reserve, while the watch maintains water-resistance to 50m.

With its restrained 42.4mm proportion – notably smaller than historical predecessors – ref. IW344202 caters to collectors seeking both mechanical depth and refined wearability. The symmetrical layout and tone-on-tone warmth of the red gold and silver dial reinforce the timeless appeal of IWC’s most enduring calendar complication.