IWC · Portofino
Strap for Portofino Automatic 37 Net-A-Porter
Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
18mm
Lug width18 mm
Case diameter37 mm
ReferenceIW4581-20 (aka: IW458120)
FamilyPortofino
MovementIWC caliber 35111 hours, minutes, seconds | date
Year2021
CaseStainless Steel
Straps for the Portofino IW4581-20 (aka: IW458120)
Selected for the 18 mm lug width
Hammered Calfskin Strap Light Blue€98
Vintage Brown Calfskin Strap — Natural Patina€98
Hammered Pink Strap with Ecru Stitching€98
Hammered Yellow Strap with Ecru Stitching€98
Grey Hammered Leather Strap with Ecru Stitching€98
Swift Red Leather Strap€120
The Portofino IW4581-20 (aka: IW458120), seen from the bench
The Portofino represents the dress watch line of IWC characterized by classic design and essential functions. It is equipped with the IWC caliber 35111 with indication of hours, minutes, seconds and date. The reference IW458120 maintains the elegant proportions typical of the collection.
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