IWC · Portugieser

Strap for Portugieser Hand-Wound Pure Classic Stainless Steel / Black

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 diameter42 mm
ReferenceIW5703-02
FamilyPortugieser
MovementIWC caliber 62060 Hours, Minutes
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Straps for the Portugieser IW5703-02

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Portugieser IW5703-02, seen from the bench

The Portugieser IW5703-02 is the contemporary evolution of an icon born in 1939 as a maritime navigation instrument. Featuring a 42mm stainless steel case, this model preserves the chronometric heritage of Schaffhausen through rigorous proportions and uncompromised legibility. The watch is powered by the proprietary IWC 62060 caliber, a manual-winding movement embodying Swiss manufacturing precision. The 20mm lug width is the spatial interface defining the relationship between the watch case and the wrist, engineered as a compromise between case presence and classical strap proportion.

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