IWC · Portofino
Strap for Portofino Automatic 37 Red Gold / Diamond / Ardoise
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
20mm
Lug width20 mm
Case diameter37 mm
ReferenceIW4581-08 (aka: 4581-08, IW458108)
FamilyPortofino
MovementIWC caliber 35111 hours, minutes, seconds | date
CaseRed Gold
Straps for the Portofino IW4581-08 (aka: 4581-08, IW458108)
Selected for the 20 mm lug width · workshop selection
Green Rubberized Alligator Strap with Ecru Tribal Stitching€149
Millennium Green Alligator Strap€195
Black Rubberized Alligator Strap with Red Tribal Stitching€185
Vintage Olive Green Calf Leather Watch Strap€80
Italian Calfskin Rally Strap in Cognac€110
The Portofino IW4581-08 (aka: 4581-08, IW458108), seen from the bench
The Portofino represents IWC's classic watch line, characterized by an essential design and basic functions. It is equipped with the IWC caliber 35111, indicating hours, minutes, seconds and date. The collection maintains contained proportions with a minimalist aesthetic typical of dress watches.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only