IWC · Portugieser
Strap for Portugieser Chronograph Classic Stainless Steel / Blue
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
ReferenceIW3903-03 (aka: IW390303)
FamilyPortugieser
MovementIWC caliber 89361 hours, minutes, small seconds | date | Chronograph, Flyback
Year2017
CaseStainless Steel
Straps for the Portugieser IW3903-03 (aka: IW390303)
Selected for the 20 mm lug width · workshop selection
Green Rubberized Alligator Strap with Ecru Tribal Stitching€149
Millennium Green Alligator Strap€195
Black Rubberized Alligator Strap with Red Tribal Stitching€185
Vintage Olive Green Calf Leather Watch Strap€80
Italian Calfskin Rally Strap in Cognac€110
The Portugieser IW3903-03 (aka: IW390303), seen from the bench
The Portugieser IW390303 is powered by the IWC caliber 89361 with hours, minutes, small seconds, date, and flyback chronograph functions. The movement offers the possibility to instantly reset and restart the chronograph measurement without stopping the mechanism. The reference features the distinctive Portugieser design with a clean dial and well-balanced chronograph 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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only