Experience the craft of IWC in the Ingenieur (ref. IW3505-07), a refined timepiece that blends thoughtful design with reliable performance. A study in proportion and durability: measuring 34 mm in diameter, with a thickness of 8.6 mm, defined by a round silhouette. The caseback is closed, and the crystal is sapphire, delivering water resistance to 12000 meters. The dial composition is deliberate and legible: a black tone, framed by stick / dot hour markers, and stick hands. Beneath the caseback lies dependable performance: the 375 caliber. Initial production year: 19831990. 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.