IWC Portugieser Tourbillon - Yellow Gold - 42.4 MM - Black Dial - IW545901

The Portugieser Hand-Wound Tourbillon Day & Night features an 18-carat Armor Gold® case, 42.4 millimeters in diameter, with an Obsidian lacquered dial and gold-plated hands. Renowned for its durability, Armor Gold® enhances wear-resistance. The watch boasts a flying minute tourbillon at 6 o’clock, with silicone components coated in Diamond Shell® for reduced friction and improved energy flow. With an 84-hour power reserve, it includes an innovative day and night display at 9 o’clock. The hand-wound IWC-manufactured 81925 caliber powers this masterpiece, adorned with circular Geneva stripes and a skeletonized base plate. Completing the ensemble is a black alligator leather strap from Santoni with an 18-carat Armor Gold® folding clasp.