Strap for Pilot's Watch Doppelchronograph Stainless Steel / Black / English / Strap

The IWC Pilot IW3711-03 features a lug width of 21mm. This measurement is specific to the model and is determined by the distance between the lateral lugs of the case. It is essential to verify this measurement before purchasing an aftermarket strap, as straps of different widths (such as 20mm or 22mm) will not fit correctly into the spring bars.

For the IW3711-03, straps in alligator or calf leather are recommended, as they enhance the sporty-elegant aesthetic of the chronograph. A valid alternative is the NATO strap in technical material, which emphasises the aviatory character of the watch. The choice depends on use: leather for formal contexts, NATO for daily wear and outdoor activities. Rubber straps with contrasting stitching also add a technical dimension to the wrist.

The strap is changed by removing the lateral spring bars of the case with a dedicated tool. It is advisable to proceed gently to avoid scratching the lugs. Some IWC cases feature fixed or protected bars: in such cases, a professional watchmaker guarantees the result without risk. Once the bars are removed, the old strap disengages, allowing the new one to be inserted at a total length of approximately 260mm (to be adjusted to the wrist).

Yes, provided that the lug width is exactly 21mm. Aftermarket straps of artisanal quality, made from alligator leather, shell cordovan or vegetable-tanned calf leather, are perfectly compatible and often offer greater customisation than OEM options. Milano Straps supplies selected 21mm straps, both ready for shipment online and personalised through the Casati Milano atelier by appointment.

A quality leather strap (calf, alligator, shell cordovan) can last 3 to 7 years of daily wear, depending on the frequency of use, sun exposure and humidity. Vegetable-tanned leathers age elegantly, developing a unique patina. Straps crafted by Casati Milano include an 18-month warranty, with the possibility of scheduled replacements and maintenance. Longevity also depends on proper storage and regular cleaning.