Strap for Portofino Automatic Red Gold / Silver

The lug width of the IWC Portofino IW3565-04 is precisely 20mm, measured from the inner point of one lug to the inner point of the other. This standard dimension ensures compatibility with all certified artisanal straps designed for this specific size. Accurate measurement requires a digital calliper positioned parallel to the dial.

For the rose gold IW3565-04, we recommend an alligator strap in deep brown (Cognac tone) or a vegetable-tanned calf leather in burgundy. Alligator captures light beautifully through its natural grain pattern, whilst vegetable-tanned calf develops rich patina over time. For formal occasions, black shell cordovan creates a sophisticated, understated contrast.

Remove the strap by using a spring bar tool to gently compress the internal spring within each lug. Position the tool in the small notch beneath each pin, lift carefully, and extract the bar. Repeat on the opposite side. Align the new strap's holes with the lugs, reinsert the bars in the same orientation, and verify stability before wearing the watch.

Yes, the IW3565-04 is fully compatible with certified aftermarket straps featuring a precise 20mm lug width. Select manufacturers offering tight tolerances and stainless steel spring bars. Bespoke straps in alligator, calf, or shell cordovan provide superior versatility compared to the original strap, enabling seasonal and stylistic rotation.

A natural leather strap (alligator, calf, shell cordovan) typically lasts 18–36 months depending on usage frequency and humidity exposure. Vegetable-tanned leather develops visible patina after 6–12 months whilst maintaining structural integrity. To extend lifespan, avoid standing water, dry immediately after exposure to humidity, and consider rotating secondary straps. Casati Milano provides an 18-month warranty on all bespoke straps.