IWC · Portugieser
Strap for Portugieser Yacht Club Chronograph Orlebar Brown
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 diameter45 mm
ReferenceIW3907-04 (aka: IW390704)
FamilyPortugieser
MovementIWC caliber 89361 hours, minutes, small seconds | date | Chronograph, Flyback
Year2020
CaseStainless Steel
Straps for the Portugieser IW3907-04 (aka: IW390704)
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 IW3907-04 (aka: IW390704), seen from the bench
The Portugieser Chronograph IW3907-04 features a 44.60mm stainless steel 316L case with 60-meter water resistance. Powered by the in-house IWC 89361 caliber, it offers chronograph with flyback function, hours, minutes, small seconds, and date. The 20mm lug width balances the generous case diameter while maintaining elegant proportions suitable for both sports and formal wear.
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