IWC Portugieser Hand-Wound Tourbillon Watch – 13th Anniversary Edition

IWC Portugieser Hand-Wound Tourbillon — a true flying minute tourbillon with constant-force mechanism and manual winding. Seamlessly integrates the timeless modern design of the Portugieser collection with a flying minute tourbillon positioned at 6 o’clock. Gilt Arabic numerals and gold leaf-shaped hands harmonize elegantly with the silver-plated dial.
1. Exclusively developed Calibre 81905 movement, offering an impressive 72-hour power reserve and faithfully replicating the three core functions of the genuine timepiece.
2. Case: Precisely reverse-engineered from the original — a perfect 1:1 replica of the three-piece case construction. Both front and back profiles, side contours, and brushed finishing (including curved brushing) match the authentic piece exactly; diameter: 42 mm, thickness: 11 mm.
3. Crystal: Domed sapphire crystal.
4. Hands: Meticulously crafted — from initial design and mold-making to repeated prototyping and precision inspection — to achieve identical three-dimensional form and finish as the original.
5. Strap: Genuine Italian calf leather strap with crocodile-embossed texture, hand-stitched with refined attention to detail; paired with an IWC-branded folding clasp replicating the original’s exact font, engraving depth, and craftsmanship.