Strap for Portofino Automatic / Stainless Steel / White / Strap

The IWC Portofino IWC3533-01 features a lug width of 20 millimetres. This specification is deliberate, chosen to maintain visual proportions between the 38mm case and the minimalist dial. Verify the measurement directly on the watch using a flexible ruler, measuring the internal distance between the two lugs.

For the classical aesthetic of the Portofino, we recommend polished black alligator with black stitching for formal contexts, or vegetable-tanned calf in cognac brown for a warmer tone. Shell cordovan in dark brown represents the most exclusive tactile option. Your choice should consider the dial colour (silver, black, or blue) and primary use.

Remove the strap by extracting the lug pins (springbars) using a dedicated tool (strap removal tool). Apply gentle leverage beneath the pin to release it from its seat, then insert it into the new strap. We recommend having a specialist watchmaker assist you to avoid case scratching.

Yes, any aftermarket 20mm strap is physically compatible. However, we recommend brands offering comparable construction quality (selected leather, precise stitching, stainless steel hardware). Bespoke straps with lug shaping mirrored to the IWC case deliver superior aesthetic results.

Durability depends on material and usage patterns. A vegetable-tanned alligator properly maintained (dried after rain, kept away from intense heat sources) lasts 4-7 years with daily wear. Shell cordovan, being more durable, can exceed 10 years. Casati Milano straps include 18-month warranty and restoration support.