Created to celebrate IWC’s 150th anniversary, the Big Pilot’s Watch Big Date Edition “150 Years” IW510503 is a rare and highly collectible model produced in a strictly limited series. This exceptional timepiece showcases the bold character of the Big Pilot’s line, enhanced by unique anniversary design elements that make it truly stand out.

The watch features an impressive 46.2mm stainless-steel case, offering the commanding wrist presence that the Big Pilot family is known for. Its clean white lacquered dial, black Arabic numerals, and stark contrast ensure excellent legibility in all conditions. The defining feature—the big date display at 12 o’clock—adds both practicality and visual appeal, giving the piece a contemporary edge while staying rooted in pilot-watch tradition.

At its heart lies the IWC Calibre 59235, a finely crafted hand-wound movement with an impressive 192-hour (8-day) power reserve accompanied by a power-reserve indicator on the back. The sapphire caseback provides a clear view of the movement’s meticulous finishing, reflecting IWC’s dedication to mechanical excellence.

Paired with a high-quality leather strap, this anniversary edition blends durability, sophistication, and historical significance. Limited in production and rich in character, the IW510503 is a remarkable collector’s piece for enthusiasts drawn to pilot-watch heritage and exceptional horological craftsmanship.

Key Features

• Exclusive Anniversary Edition – Limited “150 Years” model featuring a striking white lacquered dial and signature big date display.

• Imposing 46.2mm Case – Classic Big Pilot stainless-steel construction with bold Arabic numerals for superior readability.

• High-Performance Hand-Wound Movement – IWC Calibre 59235 with an extraordinary 8-day power reserve and exhibition caseback.

This timepiece has undergone a thorough inspection of water resistance, accuracy, functionality and condition to determine the level of reconditioning required to meet our strict standards. It has also been referenced against technical documents and manufacturer records where available to ensure authenticity and a clean history.

Topwatch 12 Month Warranty Included.

Orders are dispatched from Topwatch during normal South African business hours, which are 08:00 to 17:00.

For our customers, we only accept the lowest cost and safest delivery procedures possible. All packages shipped via Topwatch are fully insured against loss, theft & damage during transit at no extra cost to you.

Due to the valuable nature of Topwatch products, we require a signature from an authorised person for your delivery at your nominated delivery address. Products will be deemed received by you, if accepted by a person at your nominated delivery address.

Insurance applies until the order is delivered to your nominated address. Delivery details must include a daytime contact telephone number. *Post Office boxes cannot be used for deliveries by our Couriers.

Overseas deliveries may be subject to import charges and other local taxes. Any such charges are the responsibility of the customer. Customs restrictions may also apply.