Strap for Portofino Pointer Date 39 Stainless Steel / Silver

The Portofino IW3592-01 features an 18-millimetre lug width. This measurement represents the distance between the extremities of the metal spring bars and determines compatibility with aftermarket straps. To verify correct measurement, position a digital calliper across the inner ends of the lugs, ensuring the strap inserts without forcing.

For the Portofino IW3592-01 in stainless steel, we recommend fine-grain alligator (which reflects the model's classical elegance) or calf leather subjected to vegetable tanning for those who appreciate colour evolution over time. Shell cordovan represents the discreet luxury option, whilst fabric NATO straps are ideal for a more casual approach. Selection depends on intended use and season.

Strap replacement requires a spring bar tool and a few minutes of careful attention. Position the watch on a soft, flat surface and identify the metal spring bars at the extremities of the lugs. Use the tool to gently compress the spring bar and extract it from its seat. Insert the new strap, aligning the holes with the spring bar positions, and release the tool. Verify that the strap is firmly anchored before wearing the watch.

Yes, any strap designed for an 18-millimetre lug width is compatible with the Portofino IW3592-01. However, we recommend selecting models of elevated construction quality: the leather must be sufficiently robust to withstand the casing's weight, and stitching must be executed with quality thread and correct technique. Straps crafted at the Casati Milano atelier are specifically calibrated for this reference.

Leather strap longevity depends on daily use, sun exposure and humidity. A superior-quality alligator strap worn daily maintains structural integrity for 4–6 years; vegetable-tanned calf resists for 3–5 years; shell cordovan reaches 5–7 years. Natural tanning and cotton or linen thread extend these periods compared to chemical finishes. Regular maintenance (cleaning, occasional conditioning and rest periods) significantly increases longevity.