Strap for Portofino 34 Red Gold / Green / Santoni

The lug width of the Portofino IW3574-09 is 16 mm. This measurement represents the distance between the two case lugs where the strap attaches. It is a distinctive construction feature that reflects the compact design of this 34 mm diameter case and requires specialized straps, not standard 18 or 20 mm sizes.

For the Portofino IW3574-09 in 18-karat rose gold, premium alligator leather is the reference choice: its natural texture creates a sophisticated contrast with the Red Gold. Alternatively, vegetable-tanned calf leather in cognac or tobacco tones amplifies the chromatic harmony of the case while maintaining everyday versatility. Every choice must respect the principle of understated elegance that characterizes the original design.

Changing the strap on the Portofino IW3574-09 involves removing the spring bars from the lugs, a procedure that requires a specific tool (spring bar tool) and care to avoid scratching the rose gold. It is recommended to entrust this operation to an authorized IWC service center or a specialist craftsman in luxury watches. Casati Milano offers this service at its atelier by appointment, guaranteeing precision and care.

Yes, any strap with a 16 mm lug width is compatible with the Portofino IW3574-09. It is essential to verify this measurement before purchase, as the 16 mm size of this model excludes standard 18 or 20 mm straps. Milano Straps offers a collection of artisanal 16 mm leather straps, customizable in leather type, color, and stitching details.

A quality artisanal leather strap has an average lifespan of 3-5 years with daily use, depending on the leather type and care. Alligator and vegetable-tanned calf leather age better, developing a patina that enhances their aesthetic value over time. Casati Milano guarantees 18 months on the invoice for bespoke straps, with the possibility of maintenance and renewal of the buckle or loops over the years.