Strap for Portugieser Chronograph Year of the Dragon

The IWC Portugieser IW3716-29 uses a lug width of 20mm. This width is standard for IWC chronographs of this generation and is crucial for maintaining visual balance between the 41mm case and the strap. It is important to always verify manufacturing tolerances (±0.2mm) by personally measuring the lug width with a digital caliper.

For the IW3716-29 in brushed steel, fine-grained alligator represents the most natural choice, amplifying the case's sobriety. Shell cordovan offers absolute durability and develops a dark patina over time. For those preferring everyday versatility, vegetable-tanned calf balances elegance and longevity (8-10 years). FKM rubber is ideal for environments with frequent perspiration, while canvas NATO remains the pure minimalist solution.

Strap change on the IW3716-29 is accomplished by removing the spring bar located inside each lug. Position the watch on a soft surface, use a dedicated lever (strap removal tool) to extract the spring bar by gently pushing from below. Once the spring bar is removed, the old strap will slide out. Reinsert the new strap and push the spring bar until you hear a click. Delicate operation: if inexperienced, consult an expert to avoid damaging the lugs.

Yes. Any 20mm strap is compatible with the IW3716-29. On milanostraps.it you will find a selection of artisanal straps in various materials (alligator, cordovan, calf, rubber) specifically made for this lug width. Artisanal quality guarantees construction precision that industrial standards often fail to achieve. Alternatively, the Casati Milano atelier creates custom solutions with complete personalization.

A quality alligator strap reaches 6-8 years of regular use (5-6 days per week). Shell cordovan, thanks to the superior density of the hide, extends this lifespan to 10-12 years. Vegetable-tanned calf averages around 8-10 years. Lifespan depends on environmental humidity, cleaning frequency, and personal perspiration. Protective treatment (vegetable wax) every 6 months significantly extends useful life.