IWC Portugieser Automatic 42mm 18-Carat 5N Rose Gold, Ref. IW501707 with B&P

IWC Portugieser Automatic 42mm 18-Carat 5N Rose Gold, Ref. IW501707 with B&P

Condition: Very good, pre-owned condition and running strong. Under two year factory warranty with available extension to 8 years.

Contents: Double-boxed, booklet, screwdriver, 2025 card and upgraded bespoke Jean Rousseau black alligator strap.

A Rare Opportunity to Own One of IWC’s Most Refined Dress Watches, Elevated with a Bespoke Jean Rousseau Strap

The Portugieser Automatic 18-carat 5N rose gold is one of the most architecturally disciplined dress watches in modern Swiss horology. The Portugieser lineage traces back to the late 1930s, when IWC Schaffhausen built a distinctively large wristwatch around a high-precision pocket watch movement, delivering chronometer-grade accuracy in a wristwatch form. The IW501707 presents a polished 42.4mm 18-carat 5N gold case housing an Obsidian black dial with gold-plated hands and individually hand-mounted gold appliques, manufactured through a complex 60-step process with 15 layers of transparent lacquer for extraordinary optical depth. The movement is IWC Calibre 52011, beating at 28,800 vph with 31 jewels and delivering a 168-hour, seven-day power reserve displayed via a dedicated indicator on the dial, complemented by a small seconds sub-dial at 9 o’clock and a date window at 6 o’clock. This example has been further distinguished by the previous owner with a Jean Rousseau black alligator strap, one of the most respected independent strap houses in the world, representing an upgrade that meaningfully exceeds the factory Santoni configuration in both material quality and exclusivity. The watch is presented in exceptional condition with minimal wear, full box and papers, and a 2025 warranty card confirming recent provenance.

For the collector who demands both horological substance and visual authority, this rose gold Portugieser with a bespoke Jean Rousseau strap is a ready-to-wear statement that cannot be assembled new.