Experience the craft of IWC in the Portugieser (ref. IW3940-09), a refined timepiece that blends thoughtful design with reliable performance. A study in proportion and durability: crafted in armor gold and measuring 44 mm in diameter, with a thickness of 17 mm, defined by a round silhouette. The caseback is open, and the crystal is sapphire, delivering water resistance to 3000 meters. The dial composition is deliberate and legible: a black tone with sunburst finish, framed by arabic numerals hour markers, and alpha hands. Among collectors, it is nicknamed "Obsidian". Beneath the caseback lies dependable performance: the 89900 caliber. Produced in limited numbers, appealing to focused collectors. Introduced in 2025. Comfort and balance define the wearing experience, making it an easy daily companion. Subtle transitions between textures elevate the overall impression. For buyers researching specifications and real-world impressions, this reference stands out for coherent design, dependable mechanics, and lasting relevance within modern horology.