The IWC Portugieser ref: IW545901 features a 42mm case crafted from rose gold. This timepiece is powered by the manual winding IWC caliber 81925 and includes a day/night indication. The black dial provides a striking contrast to the rose gold, enhancing readability. Additionally, the watch is equipped with a tourbillon, showcasing its intricate mechanics. Released in 2024, this model combines traditional watchmaking with modern design elements, making it a noteworthy addition to any collection.