Meet Rolex Sea-Dweller (ref. 16660 Comex), a refined timepiece that blends thoughtful design with reliable performance. A study in proportion and durability: 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. The dial composition is deliberate and legible: a black tone with matte finish, framed by stick / dot hour markers, and mercedes hands. Among collectors, it is nicknamed "Comex". Beneath the caseback lies dependable performance: the 3035 caliber. Initial production year: 19801984. 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.