IWC · Portugieser
Strap for Portuguese Yacht Club Chronograph 43.5 Stainless Steel / Ardoise
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 diameter44 mm
ReferenceIW3905-03 (aka: 3905-03, IW390503)
FamilyPortugieser
MovementIWC caliber 89361
Hours, Minutes, Small Seconds | Date | Chronograph, Flyback
CaseStainless Steel
Straps for the Portugieser IW3905-03 (aka: 3905-03, IW390503)
Selected for the 20 mm lug width · workshop selection
Green Rubberized Alligator Strap with Ecru Tribal Stitching€185
Novonappa Black Strap — IWC Pilot Style€149
Black Alligator Strap with Light Blue Edges€210
Black Alligator Strap with White Edges€210
Millenium Cognac Alligator Strap€270
The Portugieser IW3905-03 (aka: 3905-03, IW390503), seen from the bench
The Portugieser IW3905-03 features the IWC caliber 89361 automatic movement with flyback chronograph, small seconds and date indication functions. The movement offers hours, minutes, small seconds and chronograph with a flyback mechanism for instant reset. The reference belongs to the Portugieser collection of IWC, characterized by the classic design with a clean and legible dial.
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