Strap for Portofino Automatic Yellow Gold / White / Bracelet

The IWC Portofino IW9261-05 has a lug width of 18 millimetres. This measurement is verified by measuring the internal space where the spring bar is inserted. It is important to confirm this dimension before ordering a strap, as 18 mm is a specific size that is not compatible with 20 mm or 16 mm straps.

For the 34 mm IWC Portofino IW9261-05 in yellow gold, the most appropriate materials are alligator in brown tones (cognac, chocolate, burgundy), vegetable-tanned calfskin, and shell cordovan. Alligator is the most classic choice for dress watches in gold, with a natural texture that interacts beautifully with light. Avoid rigid NATO straps and rubber, which are anachronistic on this reference.

Changing the strap on a watch with a spring bar requires a specific tool: a spring bar tool. Gently insert the pointed tip under the spring bar from one side, push toward the centre of the case to release it, then slide off the old strap. Repeat on the other side. To fit the new strap, align the holes and press gently until the spring bar clicks into position. Never force it: 18 mm lugs are precise and delicate.

Yes, any strap with an 18 millimetre lug width is compatible. However, the quality of the aesthetic pairing depends on the manufacturer. Custom bespoke straps offer superior finishing and optimal proportions compared to standard commercial straps. Always verify that the strap allows natural rotation of the spring bar without obstruction.

A high-quality leather strap (alligator, calfskin, shell cordovan) worn daily with normal care lasts an average of 3–5 years. Durability depends on sun exposure, humidity, sweat, and cleaning frequency. Vegetable-tanned straps tend to age more nobly, developing patina and character. The standard warranty is usually 18 months. Avoid prolonged water immersion and dry quickly after accidental contact with water.