Strap for Big Pilot's Watch Perpetual Calendar Spitfire Bronze / Green

The lug width of the IWC Big Pilot IW5036-01 is 22mm. This dimension is determined by the proportions of the 46.2mm case and the oversized crown. To verify compatibility, measure the distance between the metal lugs: it must be exactly 22mm on both sides (crown and opposite end).

We recommend alligator leather in vegetable tanning for elegance and durability, Tuscan calf for a naturally aged patina, or fluoroelastomeric rubber for sportive practicality. The choice depends on your intended use: formal, versatile daily wear, or extreme conditions. The colour should complement the dark dial (brown, black, smoke grey) or harmonise with the case's bronze (cognac, tobacco).

Remove the lateral pins using a spring bar tool or consult a qualified watchmaker. Place the watch on a soft surface, gently extract the pin from the side opposite the crown, and slide out the strap. Insert the new strap in the reverse direction, ensuring the pins are properly seated in both lugs. If the strap features a deployante buckle, verify that it closes fully.

Yes, provided the lug width is 22mm. Milano Straps offers bespoke-crafted straps in various materials and colours. Always verify that the strap thickness is proportioned to the case (not less than 4mm for this size) and that finishing quality aligns with the watch's level. A titanium deployante maximises aesthetic harmony.

A quality leather strap (alligator, calf, Tuscan leather) mounted on a 46.2mm Big Pilot lasts on average 4–6 years of regular daily use, accounting for tool weight and natural wear. Vegetable-tanned leather tends to outlast chemical tinting (up to 7–8 years) as it contains no synthetic plasticisers. We recommend annual light maintenance and rotation with alternative straps to extend useful life.