IWC · Portugieser

Strap for Portuguese Chrono-Rattrapante Boutique Geneve

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 diameter41 mm
ReferenceIW3712-21 (aka: IW371221)
FamilyPortugieser
MovementIWC caliber 76240 Hours, Minutes | Chronograph, Rattrapante
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 IW3712-21 (aka: IW371221)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Portugieser IW3712-21 (aka: IW371221), seen from the bench

The Portugieser IW371221 features the IWC caliber 76240 with chronograph and split-seconds (rattrapante) functions. The movement offers hour and minute indication as well as the chronograph complication. The case presents the classic design of the Portugieser collection with a clean dial and well-balanced counters.

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