Unworn IWC Big Pilot's Watch Perpetual Calendar, Stainless Steel, 46,2mm, Ref# IW503608, box and papers

Introducing the unworn IWC Big Pilot's Watch Perpetual Calendar, Ref# IW503608 – a commanding aviation timepiece engineered for mechanical depth and visual clarity. The substantial 46.2mm stainless steel case, finished with a combination of brushed and polished surfaces, measures 15.4mm in thickness and projects unmistakable presence on the wrist. Its green sunray dial provides a striking yet highly legible backdrop for the watch’s extensive complications. The expansive layout allows each calendar display to breathe; ensuring information is read at a glance. Luminous, polished rhodium-plated silver-tone hands sweep across white rhodium-plated Arabic numeral hour markers, while bold luminous index markers punctuate every five-minute interval along the outer minute track. A luminous small second’s sub-dial is positioned at 9 o’clock, with the date displayed at 3 o’clock alongside the power reserve indicator. This perpetual calendar integrates displays for the date, day, month, and four-digit year, complemented by a double moonphase calibrated for both the northern and southern hemispheres—an exceptional demonstration of astronomical precision. At its core beats the manufacture IWC Calibre 52616, operating at 28,800 vibrations per hour (4 Hz). Comprising 54 jewels, the movement delivers an impressive seven-day (168-hour) power reserve. The elaborately decorated mechanism is visible through the sapphire glass case back. The convex sapphire crystal features anti-reflective coating on both sides and is secured against displacement in the event of a sudden drop in air pressure—an engineering detail aligned with the Big Pilot lineage. A screw-in stainless steel crown with the original oversized profile reinforces its aviation heritage. Completing the watch is a sporty green rubber strap accented by four rivets and secured with a stainless steel deployant buckle. The integrated EasX-CHANGE® system allows straps to be swapped quickly and effortlessly without tools. With water resistance rated to 60 meters (6 ATM / 200 feet), this Big Pilot’s Watch Perpetual Calendar merges technical mastery, durability, and bold contemporary aesthetics.

• Make: IWC
• Model: Big Pilot’s Watch Perpetual Calendar
• Reference: IW503608
• Diameter: 46,2mm
• Case material: Brushed and polished Stainless Steel
• Dial color: Green with a fine sunray finish
• Bezel Type: Fixed
• Bezel Color: Silver
• Bezel Material: Stainless Steel
• Crystal: Scratch-resistant sapphire convex, antireflective coating on both sides
• Movement: Automatic movement
• Bracelet Type: Sporty Strap
• Bracelet Material: Green Rubber
• Clasp: Stainless Steel Deployant Buckle
• Functions: Date, Power Reserve, Hour, Minute, Second, Moonphase, Day, Centre hours, minutes and hacking seconds, EasX-CHANGE system
• Water resistance: Up to a 60m/200ft (6 ATM)
• Warranty: Balance of IWC 2 years International Warranty

The watch is unworn and comes complete with full set of original accessories, such as watch box, warranty card dated recently, booklets and manuals.

All Pre-Owned Rolex watches are guaranteed to be 100% genuine and certified authentic. Certificates are issued by Watch CSA, the industry's leading independent authority on watch authentication.

All orders are prepared and fulfilled only after payment has been received and fully processed. Once confirmed, orders are typically shipped within 1–3 business days (for models that require sourcing, this timeframe might be longer).

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We offer a 3-day return period on eligible watches, starting from the date of delivery. To qualify, the watch must be returned in the same condition as received—unworn, unaltered, and with all original packaging, tags, and accessories included.

All returns must be approved in advance. Once received and inspected, refunds are processed promptly back to the original payment method.

For full details on eligibility, conditions, and the return process, please refer to our Return Policy.