From Rolex, presenting the Sea-Dweller (ref. 16660 Matte MK1), a contemporary classic shaped by careful watchmaking know-how. The exterior is thoughtfully executed: crafted in stainless steel and measuring 40 mm in diameter, with a thickness of 14.8 mm, defined by a round silhouette, paired with a rotating, 0-60 (dive) bezel. The caseback is closed, and the crystal is sapphire, delivering water resistance to 122000 meters. At a glance, the dial balances texture and clarity: a black tone with matte finish, framed by stick / dot hour markers, and mercedes hands. Among collectors, it is nicknamed "Mark 1". At its heart beats a proven engine: the 3035 caliber. First released in 19801988. 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.