IWC Big Pilot’s Watch Perpetual Calendar
IW503605
2-year warranty, extendable to 8 years. Register here
*Available On Special Order
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The IWC Big Pilot’s Watch Perpetual Calendar combines iconic design with sophisticated engineering. Housed in a stainless steel case, this 46mm watch features a deep blue dial with rhodium-plated hands and a matching blue calfskin strap. The perpetual calendar, developed by IWC’s Kurt Klaus, is a hallmark of the model, automatically adjusting for month lengths and leap years, requiring no manual correction until 2100. Powered by the IWC-manufactured 52615 calibre, this timepiece includes a robust Pellaton winding system with ceramic components for durability and a seven-day power reserve. The intricate movement is visible through a sapphire glass case back, showcasing its meticulous craftsmanship.
Full Specification
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Brand IWCCollectionPilot’s WatchesSeriesClassicModel NoIW503605
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MovementFeatures Day-Date, Moon Phase, Perpetual Calendar, Power Reserve IndicatorMovement AutomaticCalibre 52615CaseCase Size 46.2 mmCase Shape RoundCase Material SteelGlass Material Sapphire CrystalDialDial Colour BlueStrapStrap Material LeatherStrap Colour BlueOtherGender MenWater Resistance (M) 60Warranty Period 2-year warranty, extendable to 8 years. Register hereCountry of Origin Switzerland
Collection Video Discover the Pilot’s Watches Collection
About the IWC Pilot’s Watches Collection
The IWC Pilot's Watches is a collection of dependable timepieces designed for the cockpit. However, with an ultra-chic aesthetic, it is no surprise that it ventured out of the aviation world and landed on the wrists of watch collectors around the globe. Its journey began in 1936 with the Special Pilot's Watch and progressed into the 1940s with iconic models like the Big Pilot's Watch Calibre 52, designed for the German military and the Navigator's Wristwatch Mark 11 for the British Royal Air Force. These watches became a top choice amongst the best militaries in the world primarily due to IWC being an early adopter of innovative materials, mechanisms, and functionality. And it's this spirit that has made the Pilot's Watches one of the most sought-after timepieces throughout watchmaking history and even more today.
Design And Features
With a form aimed at achieving functionality, IWC Pilot's Watches bring the best of both worlds. These watches gained early attention for their large round case and bold sans-serif Arabic numeral hour markers, choices that delivered high legibility. Throughout the journey of over 80 years, the design signatures of the Pilot's Watches have remained unchanged. An IWC Pilot's Watch is easily recognisable by its distinctive onion-shaped crown, unique 12 o'clock marker, and minimalist dial. Modern Pilot's Watches have enhanced their functional aspects by incorporating additional complications such as perpetual calendars, minute repeaters, tourbillons, and more. Also mechanically, Pilot's watches have always run on robust movements, which IWC are renowned for, offering high precision and excellent details like a whopping seven-day power reserve.
Iterations
The large and versatile family of Pilot's Watches include many well-known designs of the horological world. Watches like Big Pilot's Watch, TOP GUN, Spitfire, and the Mark Series are highly popular among serious watch enthusiasts, collectors, and even in pop culture. Each of these timepieces carries the original spirit of the collection and demonstrates the brand's passion for ingenuity. The current line-up of IWC Pilot's Watches is home to many handsome-looking timepieces featuring unique colour combinations and the use of innovative materials. It's a wholesome collection where functionality is unparalleled and style is aplenty.

ABOUT THE MOVEMENT
The calibre 52615 is powered by the automatic IWC 52010 base movement, which is rhodium-plated and visible through a sapphire crystal case/back. It has 54 jewels and a seven-day power reserve, driven by the Pellaton automatic winding system with two mainspring barrels. It powers a perpetual calendar with date, day, month, and year indicators, along with a moon phase display. The movement consists of 386 components, engineered for precision and durability, using ceramic parts in high-stress areas to reduce wear. The calibre 52615 drives the calendar module with a single nightly switching impulse, ensuring reliable and accurate performance.

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- Brand IWC
- Reference 52615
- Movement Automatic
- Display Analog
- Power Reserve approx. 168 hours
- Jewels 54
- Frequency 28800 bph
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