IWC · Portugieser

Strap for Portuguese Yacht Club Chronograph Volvo Ocean Race

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 diameter46 mm
ReferenceIW3902-12 (aka: 3902-12, IW390212)
FamilyPortugieser
MovementIWC caliber 89361 Hours, Minutes, Small Seconds | Date | Chronograph, Flyback
CaseTitanium

Spring bar

Swiss Standard universal spring bars

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

The Portugieser IW3902-12 (aka: 3902-12, IW390212), seen from the bench

The Portugieser IW3902-12 is equipped with the IWC 89361 automatic caliber with flyback chronograph, small seconds, and date indication functions. The watch features central hours, minutes, and chronograph with instantaneous resetting during operation. The movement offers the flyback complication, which allows restarting the chronograph measurement immediately.

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