Rolex | Submariner, Reference 16800, A stainless steel wristwatch with date and bracelet, Circa 1982 | 勞力士 | Submariner 型號16800 精鋼鏈帶腕錶，備日期顯示，1982年製

Enhancing the efficiency and functionality of their watches, Rolex continues to strive for technicality upgrades of its movement, and the reference 16800 is a proud example of their innovation. The reference 16800 was first launched in the 1970s with a quick date change through the crown that was never seen before. With a redesigned bezel and replaced sapphire crystal, the new submariner improves its depth rating from the original 200 meters to a remarkable 300 meters.