The IWC Portugieser Hand-Wound Tourbillon Day & Night (Ref. IW545901) is a masterpiece that epitomizes the art of haute horology. Encased in luxurious 18-carat Armor Gold, this 42.4mm timepiece exudes refinement, with its rich obsidian lacquered dial accentuated by gold-plated hands and applied markers. A tourbillon at 6 o’clock takes center stage, delivering unmatched precision, while the captivating day-and-night globe at 9 o’clock enhances its visual and functional appeal.

At its heart is the hand-wound IWC Caliber 81925, meticulously engineered to offer an impressive 84-hour power reserve. The watch is protected by anti-reflective sapphire crystals and features a transparent case back to showcase its intricate movement. Paired with a Santoni black alligator leather strap and a matching 18-carat Armor Gold® folding clasp, this timepiece is a harmonious blend of elegance and innovation. Water-resistant up to 6 bar, it is designed for those who appreciate timeless sophistication and exceptional craftsmanship.