IWC · Big Pilot
Strap for Big Pilot's Watch IWC Racing Works
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 IW5010-19 (aka: IW501019)
Selected for the 22 mm lug width · workshop selection
Novonappa Black Military Style Strap for IWC Pilot€142
Hammered calfskin strap in cuoio€98
Hammered Yellow Strap with Ecru Stitching€98
Black Calfskin Rally Watch Strap – Handmade in Milan€110
Millenium Cognac Alligator Strap€195
The Big Pilot IW5010-19 (aka: IW501019), seen from the bench
Frequently asked questions
What is the exact lug width of the IWC Big Pilot IW5010-19?
The lug width of the IWC Big Pilot IW5010-19 is 22mm. This dimension corresponds to the width between the spring bar pins that attach the strap to the watch case lugs. To verify compatibility, measure with a calliper the distance between the two pins: it must be exactly 22mm.
Which strap pairs best with the Big Pilot IW5010-19?
For the Big Pilot IW5010-19, we recommend an alligator strap with natural grain, which enhances the technical aesthetic of the titanium case through organic visual contrast. Alternatively, vegetable-tanned calf leather with patina that develops over time, or a NATO fabric strap for sporting contexts. The choice depends on intended use: formal daily wear, aviation, or recreational.
How do I change the strap on the IWC Big Pilot IW5010-19?
Position the watch on a flat surface. Locate the spring bar pins on both sides of the case. Using a spring bar tool, insert the tip into the pin slot and press gently downward to release the spring. Once the spring bar is extracted, the old strap detaches. Repeat the reverse operation with the new strap.
Can I use an aftermarket quality strap on the IW5010-19?
Yes. Any strap with compatible 22mm lug width can be mounted on the Big Pilot IW5010-19. We recommend choosing high-quality leathers and specialised brands that guarantee durability and finish consistent with the watch's value. Always verify that the spring bar pins fit perfectly into the new strap.
How long does a natural leather strap last on a Big Pilot?
A high-quality leather strap (alligator, calf, shell cordovan) typically lasts 3-5 years with daily wear. Longevity depends on exposure to moisture, perspiration, and frequency of use. Regular maintenance—gentle cleaning and seasonal conditioning—significantly extends the leather's lifespan.
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
