Strap for Big Pilot Perpetual Calendar White Gold / Ardoise

The IWC Big Pilot IW5026-03 has a lug width of exactly 22 mm. This measurement is specific to the model and preserves the original design proportions. Before purchasing a compatible strap, always verify the measurement by positioning a calliper or flexible ruler perpendicular to the lugs, measuring from inner edge to inner edge.

For a white gold Big Pilot, alligator is the most refined choice: its pronounced grain creates an elegant contrast with the precious metal and ages in harmony with the natural patina of white gold. Alternatively, high-grade calfskin offers chromatic versatility (blacks, burgundies, greys), whilst shell cordovan ensures legendary durability. NATO straps in fabric echo the model's aviatory heritage.

To change the strap on the Big Pilot IW5026-03, you will need a spring bar removal tool. Position the tool in the lateral slots beneath the lugs, apply gentle downward pressure and the spring bar will retract, freeing the old strap. Insert the new strap by aligning its ends with the spring bars and the mechanism will reactivate automatically. For maximum security, consult a qualified professional.

Yes, any strap with a 22 mm lug width is physically compatible with the Big Pilot IW5026-03. However, construction quality influences durability and final aesthetics. Milano Straps offers straps in fine leather (alligator, calfskin, shell cordovan) crafted artisanally and customisable, plus bespoke services from Casati Milano atelier for complete customisation.

A high-quality leather strap has an average lifespan of 3-5 years with daily wear, depending on exposure to moisture, perspiration and UV light. Alligator and shell cordovan are among the most durable materials. Regular maintenance—cleaning with a soft cloth and periodic conditioning with specific products—substantially extends service life. Artisanal straps from Milano Straps include an 18-month guarantee and can be restored or regenerated by the Casati Milano atelier.