Strap for Big Pilot Shock Absorber XPL

The lug width of the IWC Big Pilot IW3572-01 is 22mm. This measurement represents the distance between the horizontal pins that connect the strap to the case. To verify the compatibility of an aftermarket strap, measure the internal opening between the lugs with a digital calliper at the deepest point. IWC accepts manufacturing tolerances that vary between 21.8mm and 22.2mm, ensuring moderate compatibility with specialised strap brands.

The best strap depends on the context of use. For formal and daily wear, we recommend vegetable-tanned Tuscan leather or Vachetta calf in dark brown tones, which develop a natural patina complementary to the Ceratanium. For genuine aviation use, a grey anthracite NATO fabric strap restores the military genealogy of the instrument. If you use the watch in marine environments or under high thermal-humidity stress, a high-quality natural or synthetic rubber strap offers superior durability and breathability. Alligator remains the most exclusive material, with scaled texture that elegantly contrasts with the functional brutality of the case.

To change the strap, you will need a spring bar tool. Position the watch on a soft and secure surface. Locate the horizontal pin connecting the strap to the upper lug. Insert the flat tip of the extractor into the small hole on the side of the pin, applying gentle inward pressure until the pin compresses slightly. Remove the old strap and insert the new one, aligning the holes. Press the pin into its natural seat. Repeat the operation on the lower lug. If you lack experience, we recommend entrusting the task to a professional watchmaker to avoid damage.

Yes, there are quality aftermarket straps compatible with the IWC Big Pilot IW3572-01. The standardised 22mm lug width allows the use of straps produced by specialised manufacturers such as Milano Straps, which offer vegetable-tanned leather, shell cordovan, alligator and rubber in various colours. High-quality aftermarket straps can offer superior value for money compared to original IWC straps, as well as greater customisation. Always verify that the strap respects the 21.8-22.2mm tolerance and that the pins are easily interchangeable.

The lifespan of a leather strap depends on construction quality and usage. A vegetable-tanned Tuscan leather strap of adequate thickness (1.4-1.6mm) typically lasts 3-5 years of daily wear, developing visible patina whilst maintaining structural integrity. Shell cordovan straps have superior longevity, typically 5-7 years, thanks to fibre density. Prolonged exposure to humidity, perspiration and sunlight accelerates ageing. A well-maintained strap with periodic protective treatments (creams specific to vegetable-tanned leather) can remain functional beyond a decade. Milano Straps offers an 18-month warranty on straps produced in-house.