IWC Big Pilot's Watch Perpetual Calendar automatic blue dial blue leather strap 46 mm

Where an icon meets haute horlogerie

The Big Pilot's Watch Perpetual Calendar represents one of the finest expressions of IWC Schaffhausen's watchmaking expertise. It combines the unmistakable design of the Big Pilot—its oversized conical crown, exceptional legibility and commanding presence—with the celebrated perpetual calendar developed by Kurt Klaus in the 1980s. This ingenious mechanism automatically recognises the different lengths of the months and leap years, requiring virtually no adjustment until the year 2100, provided the watch remains running.

A beautifully balanced sunray blue dial

The elegant sunray blue dial showcases the perpetual calendar indications in a remarkably harmonious layout. Dedicated sub-dials display the day, date, month and leap year, while the perpetual moon phase completes the sophisticated composition. Despite the wealth of information, readability remains intuitive thanks to a perfectly balanced design that stays true to the functional philosophy of IWC pilot's watches. The 46.2 mm stainless steel case is paired with a blue calfskin strap featuring the EasX-CHANGE® quick-release system.

The in-house calibre 52616

Visible through the sapphire case back, the IWC-manufactured calibre 52616 is equipped with the renowned Pellaton winding system incorporating highly wear-resistant ceramic components. The movement delivers an impressive seven-day (168-hour) power reserve, while all perpetual calendar indications are mechanically synchronised and adjusted exclusively via the crown—one of the defining features of IWC's perpetual calendar mechanism.

The pinnacle of IWC watchmaking

Water-resistant to 100 metres, the Big Pilot's Watch Perpetual Calendar IW503605 goes beyond the concept of a pilot's watch to become a true haute horlogerie masterpiece. Combining one of watchmaking's most prestigious complications with outstanding mechanical performance and iconic design, it stands among the most accomplished creations ever produced by IWC Schaffhausen.