The Rolex Submariner reference 16800 marks a pivotal era in the evolution of the Submariner line, bridging classic vintage details and the arrival of modern features. Produced between roughly 1979 and 1987, this generation was the first to incorporate a sapphire crystal in place of the earlier acrylic, boosting scratch resistance and durability. The cal. 3035 automatic movement, with its quickset date function, delivered improved functionality for daily wear. A hallmark of the 16800 is the unidirectional rotating bezel, an important upgrade for diver safety. The case remains the robust 40mm stainless steel construction, water resistant to 300 meters, consistent with professional diving heritage. This particular example features a Rolex service gloss black dial, lume, bezel insert, and crown, indicating a sympathetic restoration using genuine manufacturer parts. While some purists seek original matte dials, the service gloss configuration offers enhanced legibility and luminous performance, appealing to both daily users and collectors seeking authenticity and longevity. Its transitional status—bridging vintage charm and modern utility—makes the 16800 a perennial favorite for Submariner enthusiasts and marks it as a significant chapter in Rolex's tool watch evolution. Its presence in the secondary market reflects enduring interest, especially for those craving both historic significance and reliable performance in a single package. (Circa. 1987). Excellent Condition with Rolex box, anchor, booklets and papers dated 1987.