Strap for Portugieser Chronograph Stainless Steel / Dune

The lug width of the IWC Portugieser IW3716-24 is 20 millimetres. This width is measured between the centres of the spring bars and ensures a perfect fit into the case lugs. Always verify this measurement before purchasing a strap using a digital calliper or by checking the marking on the original spring bars.

For the IW3716-24, we recommend alligator in dark shades (black, chocolate brown) or shell cordovan. These materials honour the chronograph's instrumental heritage and develop a natural patina over time. Satin calf leather is ideal for those seeking daily comfort, whilst NATO and rubber straps remain valid for sporting contexts.

To change the strap, you must remove the spring bars that secure the original strap to the case lugs. Use a dedicated spring bar removal tool to gently push the bar inward and release the strap. Then insert the new strap by aligning the spring bars and pushing until they click into place. Ensure the lug width is exactly 20mm.

Yes, absolutely. Any strap with a 20mm lug width is compatible with the IWC Portugieser IW3716-24. Quality artisanal straps allow you to customise the chronograph according to context and aesthetic preferences, whilst maintaining original functionality and protecting the case from wear due to frequent changes.

Durability depends on the material and usage. Alligator and shell cordovan subjected to vegetable tanning guarantee 5-7 years of daily wear if exposed to normal humidity. Vegetable-tanned calf has similar longevity. Prolonged exposure to water, salt sweat, and direct sunlight reduces strap lifespan. We recommend rotating between multiple straps to distribute wear and ensure longevity.