IWC · Portugieser
Strap for Portugieser Yacht Club Chronograph 43.5 Red Gold / Ardoise
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 diameter44 mm
ReferenceIW3905-05 (aka: IW390505)
FamilyPortugieser
MovementIWC caliber 89361
Hours, Minutes, Small Seconds | Date | Chronograph, Flyback
CaseRed Gold
The Portugieser IW3905-05 (aka: IW390505), seen from the bench
The Portugieser IW390505 is equipped with the automatic IWC 89361 caliber with flyback chronograph functions, small seconds and date. The movement provides indication of hours, minutes on separate counters and a flyback function for consecutive time measurements. The case features the characteristic design of the Portugieser collection with a clean dial and well-defined 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