Strap for Portofino Automatic / Stainless Steel / White / Strap

The lug width of the IWC Portofino IW3514-01 is 18 millimetres. This measurement represents the distance between the two inner lugs of the case and determines the mechanical compatibility of any aftermarket strap. All 18mm straps are interchangeable with this model.

For a Portofino IW3514-01, straps in alligator (for timeless elegance), vegetable-tanned calf leather (versatility and personalised patina) or shell cordovan (maximum durability) are recommended. If you seek a technical solution, a high-quality synthetic rubber strap is compatible and offers excellent environmental resistance. Your choice depends on intended usage and personal aesthetic preference.

The strap is changed by extracting the pins that secure the lugs in position. Use a dedicated tool (spring bar tool) to gently lift the passant of the retaining spring. Once the pins are extracted, the strap disengages. Repeat on the opposite side. Installation of the new strap follows the reverse procedure: insert the pins into their seats, ensuring the retaining spring is properly positioned within the case lugs.

Yes, any original IWC strap with an 18mm lug width is mechanically compatible. However, many collectors choose aftermarket straps from specialist artisans to obtain greater customisation in leather, colour and finishes. The compatible 18mm straps from milanostraps.it offer artisanal quality and customisation options unavailable in original straps.

The lifespan of a leather strap varies depending on material and usage. A quality alligator strap lasts 5-7 years of daily wear. Vegetable-tanned calf leather has a similar lifespan, approximately 4-6 years. Shell cordovan, being denser leather, can exceed 10 years. Synthetic rubber reaches 8-10 years. Regular maintenance (cleaning and conditioning with specific creams) significantly extends the life of the strap.