Strap for Portofino Automatic Red Gold / Blue

The lug width of the IWC Portofino IW3565-22 is exactly 20mm. This measurement refers to the internal distance between the two lugs protruding from the case. To verify this accurately, use a digital calliper positioned perpendicularly between the internal point of one lug and the internal point of the other. Precise measurement is essential for selecting compatible straps without risk of movement or misalignment.

For the Portofino in red gold, alligator represents the classical choice: its natural grain reflects light harmoniously with the case, creating aesthetic continuity. Alligator offers natural flexibility and superior durability. Alternatively, shell cordovan subjected to vegetable tanning develops burgundy-brown tones that accord magnificently with red gold patina. Italian calf leather with fine grain ensures tactile softness, whilst FKM rubber remains a modern solution without compromising the formal elegance of the timepiece.

Strap replacement requires a dedicated tool called a spring bar tool. Position the watch on a stable surface, insert the tool inside the lug to release the spring bar, then gently extract the bar from the case. Repeat the operation on the second lug. Subsequently, align the bars of the new strap with the holes in the case (ensuring the lug width is identical at 20mm) and reinsert the bars until they click into position. Verify that the strap is symmetrically aligned with the case before wearing the watch.

Yes, any strap with a 20mm lug width is completely compatible with the Portofino IW3565-22, provided the bars are the same diameter (typically 1.8mm). Compatibility depends solely on lug width measurement. Artisanal Italian straps made from premium leathers (alligator, shell cordovan, calf) maintain integral mechanical functionality and formal aesthetics of the timepiece. Caution: always verify that the strap does not interfere with the screw-down crown during wear.

The lifespan of a leather strap depends on material type and frequency of use. Quality alligator can last 5-7 years of daily wear, developing natural patina over time. Shell cordovan, thanks to its superior fibre density and vegetable tanning, achieves 7-10 years of useful life with proper maintenance. Italian calf leather, more sensitive to moisture and perspiration, maintains optimal performance for 3-5 years. Regular maintenance (gentle cleaning, air exposure, avoiding immersion) significantly extends strap lifespan. A deteriorated strap can be restored by specialists or replaced whilst retaining the original bars.