Strap for Pilot's Watch Doppelchronograph Yellow Gold / Black / English

The lug width of the IWC Pilot IW3713-15 is precisely 21 millimetres. This dimension is specific to this generation of the Pilot collection and is incompatible with standard 20mm straps. To verify compatibility, measure the distance between the inner attachment points of the case using a flexible ruler or digital calliper, ensuring the spring bar contact point aligns exactly at 21mm.

For the IW3713-15 in yellow gold, we recommend noble leathers in vegetable tannage: alligator in brown or black for maximum chromatic contrast and natural grain texture; Scottish grain or box calf vitello for smooth elegance and subtle patina development; cognac shell cordovan for owners who appreciate visible maturation over time. Avoid synthetic leather straps, as yellow gold deserves first-quality materials that age with dignity.

Remove the watch from your wrist and place it face-up on a soft surface. Locate the spring bar retention mechanisms at the lugs (small lateral metal levers). Using a dedicated spring bar tool, gently lift one latch at a time, sliding the old strap outward. Insert the new strap by aligning the lug width with the attachment points and press until you hear a distinct click. Verify that the strap is uniformly secured on both sides before wearing the watch.

Yes, provided the lug width is rigorously 21 millimetres. Quality aftermarket straps in alligator, vitello, shell cordovan or NATO are fully compatible with the IW3713-15 and offer personalisation benefits: colour selection, custom length, thickness variation. Source from specialist artisanal strap manufacturers that guarantee construction precision and verified materials, avoiding generic market options where quality control is insufficient.

A premium-quality leather strap (alligator, shell cordovan, vegetable-tanned vitello) typically lasts 5–8 years with daily wear, depending on frequency of use, climate conditions and maintenance habits. Leather gradually thins in the bend zone and stitching may weaken over time. Shell cordovan and alligator are more durable than vitello. Extend strap lifespan by keeping leather dry, protecting it from prolonged water immersion, and having stitching checked periodically. Atelier Casati Milano offers restitching and regeneration services for worn straps.