As far as dive watches go, the Rolex Oyster Perpetual Submariner, with waterproofness to a depth of 300 metres, will technically be more than enough for the average diver. However, if you are looking for a dive watch that was specifically designed for the deep, then the new 2018 Rolex Deepsea will exceed your most exacting demands. Where the Rolex Submariner and Rolex Sea-Dweller will reach a depth of 300m and 1220m, respectively, the Rolex Deepsea, with its gorgeous D-blue dial, will withstand a depth of 3,900m. At this depth, the pressure is a massive 390 times greater than at the surface, illustrating the supremacy of Rolex in mastering waterproofness.
THE CASE OF THE OYSTER
It is well-known that the Oyster case from Rolex was indeed designed to withstand water pressure but, at 3,900m, you can bet that the brand had to employ other modern innovations to ensure that the watch not only stays dry at that depth but remains functional. First is the Rolex-patented Ringlock System that is composed of three elements: a domed 5.5mm-thick sapphire crystal, a high performance nitrogen-alloyed stainless steel ring, positioned inside the middle case of the watch, and a case back in Oystersteel and grade 5 titanium. Next, the Triplock winding crown is equipped with three seals, screwed down securely against the case, completing the waterproofness system and guaranteeing watertight security akin to a submarine’s hatch.
Once a dive watch surpass