Strap for Pilot's Watch Chronograph Stainless Steel / Black / Cathay Pacific

The IWC Pilot IW3706-31 features a 20-millimetre lug width. This measurement represents the internal distance between the two lugs that secure the strap to the case. Confirming this dimension is essential to ensure full compatibility with aftermarket straps.

The IW3706-31 pairs optimally with straps in alligator or shell cordovan with vegetable tanning, which develop patina whilst maintaining formality. For practical aviator use, calf leather is a versatile alternative. Canvas NATO or synthetic rubber straps represent contemporary, functional solutions for those seeking practicality.

Strap replacement requires extraction of the pin connecting the strap to the case lugs. Use a dedicated spring bar tool to disengage the old strap, then insert the new one by aligning the pins with the lugs. The procedure is straightforward but requires care to avoid scratching the case. We recommend a tutorial or assistance from a specialist watchmaker on first attempt.

Yes, provided the lug width is 20 millimetres. MilanoStraps artisanal straps are designed and tested for this dimension. Always verify that the strap is not elastically too tight (risking laceration) nor too loose (potentially slipping). Stitching quality is determinative for long-term durability.

Longevity depends on intensity of use, climate, and maintenance. With natural vegetable-tanned leather, worn regularly (5-7 days weekly), average durability is 2-4 years before replacement is necessary. Alligator tends toward 3-4 years, shell cordovan toward 2-3 years. Minimal maintenance (gentle cleaning, annual conditioning) significantly extends service life.