Introducing IWC Ingenieur (ref. IW3521-01), an elegant watch engineered for daily versatility and long-term reliability. From profile to crystal, the architecture convinces: crafted in stainless steel and measuring 34 mm in diameter, with a thickness of 8.8 mm, defined by a round silhouette. The caseback is closed, and the crystal is sapphire, delivering water resistance to 12000 meters. Up close, the dial rewards inspection: a white tone, framed by stick / dot hour markers, and stick hands. Inside, precision takes center stage: the 8872 caliber. Introduced in 19932000. Designed for real-world wear, the watch transitions smoothly from tailored looks to casual settings. Manufacturing tolerances and surface treatment highlight consistent quality control. For buyers researching specifications and real-world impressions, this reference stands out for coherent design, dependable mechanics, and lasting relevance within modern horology.