Strap for Big Pilot Perpetual Calendar Stainless Steel / Black / Association Monegasque Contre Myopathie

The lug width of the IWC Big Pilot IW5026-02 is 22mm. This dimension is determined by the distance between the two lugs that connect the strap to the case. To verify it, measure with a digital calliper the distance between the lug holes on the case: it should be exactly 22mm. Any strap with this specification will be perfectly compatible.

The choice depends on your usage context. Alligator with fine grain offers formal elegance through microreflections that catch light. Calf leather with vegetable tanning develops a natural patina over time, creating a sophisticated vintage appearance. NATO cordura maintains the watch's authentic military character. FKM rubber is ideal for professional environments or high-humidity conditions, being water-resistant and durable long-term.

Strap changing requires a specific tool called a spring bar tool (lug extractor). Open the spring bar tool, insert the thin blade into the lateral hole of the lug, rotate slightly to expand the internal spring, and gently pull the lug towards you. The old strap will detach. To mount the new one, align the holes and reintroduce the lug. If you're not experienced, Casati Milano atelier offers this service with warranty coverage.

Yes, absolutely. Any quality artisanal strap with a 22mm lug width is perfectly compatible. Always verify that the lug width corresponds exactly to 22mm. Straps sold on Milano Straps are tested and designed specifically for this watch class, guaranteeing precise fitting and absence of lateral play.

Leather strap longevity varies depending on material and frequency of use. Alligator and quality calf last typically 5-8 years with daily wear, thanks to their density and resistance. Shell cordovan can last 10+ years. Wear is natural and progressive: the strap develops patina and tone over time, but the structure remains intact. Casati Milano atelier provides an 18-month warranty on all custom-made straps, covering any manufacturing defects.