Introducing Oris BC4 (ref. 01 645 7617 4174-07 8 22 58), a contemporary classic shaped by careful watchmaking know-how. The exterior is thoughtfully executed: crafted in stainless steel and measuring 42.7 mm in diameter, defined by a cushion silhouette. The caseback is open, and the crystal is sapphire, delivering water resistance to 10000 meters. At a glance, the dial balances texture and clarity: a black tone with matte finish, framed by mixed hour markers, and alpha hands. At its heart beats a proven engine: the Oris 645 caliber. With considered ergonomics, it feels composed during extended wear. Brushed and polished elements play with light to emphasize crisp geometry. For buyers researching specifications and real-world impressions, this reference stands out for coherent design, dependable mechanics, and lasting relevance within modern horology.