IWC · Portofino

Strap for Portofino Automatic Moon Phase 37 Red Gold / Diamond / Silver

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
ReferenceIW4590-14 (aka: IW459014)
FamilyPortofino
MovementIWC caliber 35800 hours, minutes, seconds | moonphase
Year2021
CaseRed Gold

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Portofino IW4590-14 (aka: IW459014)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Portofino IW4590-14 (aka: IW459014), seen from the bench

The IWC Portofino IW459014 is an automatic dress watch featuring the IWC 35800 calibre movement with moon phase complication. The case is crafted in 18-carat red gold and measures 37 mm in diameter, with a silver dial variant. The lug width is 20 mm, allowing compatibility with quality straps proportionate to the watch's refinement and construction standards.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only