Originally, Tudor was able to achieve this by using Rolex cases fitted with third-party movements, which allowed its watches to offer all of the same water resistance as their Rolex siblings.
The Tudor Submariner is a great example of the brand’s ongoing commitment to offering high-quality alternatives to Rolex’s products, and for almost as long as Rolex has been selling dive watches, Tudor has also been creating timepieces specifically for scuba divers and the underwater world.
The Tudor Submariner reference 7928 could essentially be seen as the Tudor equivalent of either a reference 5512 or 5513 Rolex Submariner.
Just like the Rolex ref. 5512, the Tudor Submariner 7928 arrived in 1959 and introduced a larger case with crown guards to Tudor’s dive watch collection. It was the first model to be designed with protective crown guards which went through a lot of variation. It was the first Tudor “Submariner” with water-resistance to 200 m / 660 ft. The first models were fitted with square crown guards and gilt dial with chapter ring, an extremely rare feature you will find on this sub with the rare "exclamation point" dot on the dial.