About watch waterproof performance, national standards and international standards have clear rules: all watches indicated the waterproof, they must stand 2 atmospheric pressure for the minimum, namely won’t enter water under 20 meters. 30 meters waterproof watches can tolerate three atmospheric pressure, and so on. This standard is under the precondition of testing at the laboratory conditions: temperature kept at 20 to 25 degrees Celsius, and watches and water are been stationary state. In this case if the watch can be waterproof, it is qualified.

ROLEX-DEEPSEA 116660-98210 black mechanical men watches

When it comes to the waterproof watches, how can we ignore the rolex look alike watches? Rolex is the world's first waterproof watch brand, as well as the world record holder of diving watches so far. The ROLEX-DEEPSEA 116660-98210 black mechanical men watches feature the arch blue crystal glass mirror of 5 mm thickness which has been dealt with high purity aluminum oxide, and it is able to withstand the pressure of up to 3 tons at the depth of 3900 meters; the fantastic and cool watch dial design uses high performance light material to make the zero mark and the pointers of the outer bezel send out the intoxicating blue light; Inside the watch case there installed with extremely strong nitrogen alloy stainless steel circle, which can bear the immense pressure that will damage a submarine; To prevent deep-sea pressure damage of the wrist watch, this ROLEX-DEEPSEA 116660-98210 is equipped with special line of nitrogen valve made of Nitrogen stainless steel alloy, so as to make the nitrogen inside the watch can be released, and then relieve stress. The design and function of this Rolex watch is extremely powerful to make it the dragon of water and king of the deep, and who can appreciate it must also be special characters.