Strap for Portofino Automatic Stainless Steel / White / Strap

The lug width of the IWC Portofino IW3513-24 is 18 millimetres. This dimension represents the width of the space between the case attachment pins and must be measured with precision perpendicular to the case. Every aftermarket strap intended for this watch must respect exactly 18mm to ensure a secure and rattle-free attachment.

For the Portofino 34mm, alligator in dark brown with vegetable tanning represents the ultimate formal solution, intensifying the watch's gravitas. Shell cordovan in deep black offers total formal elegance, whilst grained calfskin in neutral tones (black, brown, grey taupe) provides daily practicality whilst maintaining sophistication. For sporting use, high-grade FKM rubber in black or navy ensures absolute reliability in aquatic environments.

The strap is changed by removing the attachment pins (also called spring bars) using a dedicated tool or fine screwdriver. Position the pin above the case pin and press gently until the internal spring compresses, allowing extraction. Reverse the operation to install the new strap, verifying that the pin clicks securely in both case seats.

Absolutely. The Portofino IW3513-24 accepts any strap in 18mm lug width. High-grade artisanal straps in alligator, shell cordovan or premium calfskin significantly transform the wearing experience, developing natural patina over time and adding personal character. Aftermarket strap quality conditions daily comfort and overall watch longevity, making it advisable to invest in superior materials and craftsmanship.

The lifespan of a leather strap varies according to material, frequency of wear and environmental conditions. A high-quality alligator or shell cordovan strap with vegetable tanning typically lasts 3-5 years with moderate daily wear. Delicate calfskin resists 2-3 years. Exposure to excessive humidity, perspiration and UV rays reduces longevity; regular maintenance with appropriate creams significantly extends the strap's service life.