IWC Big Pilot's Watch Perpetual Calendar Ceramic — Racing Green Dial | Ref. IW503005

Produced in a strictly limited edition of 250 pieces, reference IW503005 takes the most technically ambitious variant of the Big Pilot's Watch and clothes it in the material and colour language of the racing world. The 46.5 mm ceramic case — matte black, dimensionally stable across extremes of temperature, and impervious to the superficial scratching that afflicts conventional metals — frames a deep racing green dial of immediate visual authority. It is a combination that channels the cockpit instruments of mid-century competition aircraft while remaining unmistakably contemporary in execution.

Calibre 52615 drives a perpetual calendar display of comprehensive scope: date, day, month, year indicator, moonphase, and a power reserve indicator capable of quantifying the movement's extraordinary 168-hour reserve — seven full days powered by the Pellaton winding system, IWC's tribological masterwork involving ceramic pawl wheels operating against a hardened cam. The screw-in crown and water resistance to 6 bar reinforce the instrument-watch credentials of the architecture, while the see-through sapphire caseback exposes the movement for those who understand what they are viewing. Convex sapphire crystal with anti-reflective coating on both surfaces maintains clarity across the complex sub-dial arrangement.

A black calfskin strap with contrast stitching maintains the motorsport register of the limited edition's aesthetic concept. At $31,450, this reference commands a premium that the rarity of its production run, the cost of the ceramic case, and the perpetual calendar complication with seven-day reserve collectively justify. It stands as one of the most distinctive expressions of IWC's Probus Scafusia ethos applied to a collector-grade pilot's instrument.