Strap for Big Pilot Edition Muhammad Ali White Gold

The lug width of the IWC Big Pilot IW5004-35 is 22mm. This measurement represents the distance between the two lugs of the case where the strap is inserted. It is essential to measure this value accurately before purchasing a replacement strap, as an incorrect measurement compromises mechanical compatibility and the aesthetics of the watch.

For the Big Pilot IW5004-35, we recommend vegetable-tanned leather straps, which develop a natural patina consistent with the aviator style of the model. Alternatively, high-quality alligator offers formal elegance, whilst FKM rubber or Cordura canvas NATO straps maintain authentic military aesthetics. Your choice depends on intended use: formal, sportive, or tactical.

The strap is changed by removing the spring bars (pins) that secure the strap terminals to the case lugs. A dedicated spring bar removal tool is required to prevent lug damage. We recommend having this operation performed by a specialised watchmaker or at the Casati Milano atelier, which offers a change service with a guarantee on every operation.

Yes, provided the strap has a certified lug width of 22mm. Milano Straps offers a collection of aftermarket straps crafted from premium leathers and compatible with the IW5004-35 and other 22mm cases. Each strap can be personalised in length and stitching thread to ensure a perfect fit on your wrist.

A premium leather strap, with vegetable tanning or alligator construction, has an average lifespan of 3–5 years with moderate daily use, extending to 7–10 years with regular maintenance (cleaning with a damp cloth, protection from humidity and direct sunlight). FKM rubber offers superior longevity (10+ years) but less aesthetic appeal. Milano Straps provides an 18-month warranty on all straps made in-house.