Strap for Big Pilot Red Gold / Silver / Tourneau

The IWC Big Pilot IW5004-25 features a lug width of 22mm. This dimension is specific to this model and cannot be substituted with other sizes (such as 20mm or 24mm) without compromising the watch's stability and wrist fit.

For the 46mm rose gold case, we recommend alligator in cognac or vegetable-tanned calf leather. Alligator offers sober elegance and visual contrast, whilst calf provides a patina that ages gracefully. Shell cordovan represents the choice for maximum longevity and structural resilience beyond 15 years.

Strap replacement on the Big Pilot requires extraction of the lateral lug bars using a dedicated tool. Due to the substantial rose gold case and prominent crown, we advise against DIY operation: entrust the task to a qualified watchmaker or Casati Milano atelier to ensure precision and protect the case finish.

Yes, a quality aftermarket strap in 22mm is compatible with the Big Pilot IW5004-25. It is essential to verify that the lug width is exactly 22mm and that the strap shoulders align perfectly with the case lugs without gaps or excessive tension.

A quality artisanal alligator or calf strap lasts 5–8 years with daily wear and regular maintenance (cleaning and conditioning). Shell cordovan and vegetable-tanned materials can exceed 15 years whilst maintaining structural integrity. Durability depends on humidity, sunlight exposure and frequency of use.