IWC · Big Pilot
Strap for Big Pilot Heritage Titanium
Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Big Pilot IW5010-04 (aka: IW501004)
Selected for the 22 mm lug width · workshop selection
Novonappa Black Military Style Strap for IWC Pilot€155
Novonappa Brown Military Style IWC Pilot Strap€155
Natural Calfskin NATO Strap€80
Black Calfskin NATO Strap 20mm€80
Grand Cavalier Military Brown Leather Strap€120
The Big Pilot IW5010-04 (aka: IW501004), seen from the bench
Frequently asked questions
What is the lug width of the IWC Big Pilot IW5010-04?
The IWC Big Pilot IW5010-04 has a lug width of 22mm. This measurement is proportioned to the 46.2mm case diameter and ensures correct visual balance. It is measured as the distance between the two pins connecting the strap to the case lugs.
What is the best strap for the IWC Big Pilot IW5010-04?
For the IWC Big Pilot, we recommend a vegetable-tanned Tuscan leather strap with pronounced texture: vegetable tannin reflects traditional aviator aesthetics and develops a rich patina over time. Tobacco brown represents the natural chromatic pairing with the white dial. Valid alternatives include dark shell cordovan or aged bourbon leather.
How do you change the strap on the IWC Big Pilot IW5010-04?
To change the strap, you will need a spring bar removal tool. Insert the forked end of the tool into the small lateral hole of the pin and gently lift to compress the internal spring, then remove the pin. Repeat for both sides. Install the new strap by reversing the process. If you lack experience, Casati Milano provides strap change service by appointment.
Is an aftermarket strap compatible with the IWC Big Pilot IW5010-04?
Yes, any strap with a 22mm lug width is compatible with the Big Pilot. Always verify that the space between the lugs measures exactly 22 millimetres before purchase. Artisanal milanostraps.it straps are specifically crafted for this measurement with complete personalisation options.
How long does a leather strap last on the IWC Big Pilot?
The lifespan of a vegetable-tanned Tuscan leather strap depends on usage and environmental conditions. With moderate use, a quality artisanal strap resists wear for 3–5 years before replacement is needed. Vegetable-tanned leather, thanks to natural tannins, ages elegantly by developing patina. Casati Milano guarantees 18 months of coverage on bespoke custom straps.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
