IWC · Portugieser
Strap for Portugieser Tourbillon Hand-Wound F.A. Jones White 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 diameter43 mm
ReferenceIW5447-03 (aka: IW544703)
FamilyPortugieser
MovementIWC caliber 98900 hours, minutes, small seconds | tourbillon escapement
Year2010 - 2012
CaseWhite Gold
Straps for the Portugieser IW5447-03 (aka: IW544703)
Selected for the 18 mm lug width
Vintage Brown Calfskin Strap — Natural Patina€98
Hammered Pink Strap with Ecru Stitching€98
Hammered Yellow Strap with Ecru Stitching€98
Grey Hammered Leather Strap with Ecru Stitching€98
Swift Red Leather Strap€120
Hammered calfskin strap in cuoio€98
The Portugieser IW5447-03 (aka: IW544703), seen from the bench
The IWC Portugieser IW5447-03 is a 43.10mm white gold watch from the Portugieser collection, featuring the IWC caliber 98900 manual-wound movement with tourbillon escapement, hours, minutes and small seconds. The case diameter is 43mm with an 18mm lug width, requiring specific straps to ensure aesthetic harmony between case and bracelet. This contemporary evolution of an icon born in 1939 combines refined understatement with functional design principles.
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