Strap for Pilot's Watch Chronograph Antoine de Saint Exupéry Rose Gold

The lug width of the IWC Pilot IW3717-11 is 21 millimetres. This specific dimension defines the width of the space between the lugs where the strap must be inserted. To verify it, simply measure with a digital calliper the internal space between the two lug pins, without including the lug case itself. All compatible straps for this model must have a width of exactly 21mm.

For the Pilot IW3717-11 in rose gold, the most sophisticated material is alligator in cognac or dark brown shades, which enhances the warm reflections of gold and dialogues magnificently with the patina that develops over time. An excellent alternative is shell cordovan, which develops progressive natural lustre. Vegetable-tanned calfskin represents the lighter choice for daily wear. To preserve the leather, one can alternate with structured rubber or NATO fabric straps, keeping the watch in operational use without aesthetic compromise.

Changing the strap on an IWC Pilot IW3717-11 requires a specific tool (spring bar tool) to eject the connection pins between the lugs and the strap. Position the watch with the upper lug facing upwards, insert the tip of the spring bar tool into the lateral cavity of the pin, apply gentle pressure to release it, then extract the pin. Repeat from the other side. Insert the new strap by aligning the holes with the pins, push until the closure clicks. For operations on high-value chronographs, it is advisable to entrust the task to an expert to avoid damage to the case.

Yes, numerous aftermarket straps compatible with the IWC Pilot IW3717-11 in 21mm size are available. Online you will find straps in alligator, cordovan, calfskin and rubber from specialised retailers such as milanostraps.it, where customisable versions are also available with choice of leathers, colours, initials and stitching thread variants. For a complete bespoke experience, the Casati Milano atelier creates custom-made straps with an 18-month warranty, allowing personal selection of leathers and direct updates.

The lifespan of a leather strap depends on the material, usage and care. A quality alligator strap, exposed to moderate use, maintains structural integrity for 5-8 years. Shell cordovan, thanks to its structural compactness, can exceed 10 years. Vegetable-tanned calfskin tends to last 3-5 years under regular use conditions. Determining factors are exposure to moisture, perspiration, UV rays and frequency of use. Storing the strap away from direct light and periodically hydrating the leather with specific products significantly extends its useful life. For intensive use, alternating with rubber straps preserves the main leather strap.