When it comes to watches without pressure in the water, there is no doubt that you will think about diving timepieces. Whenever there is 10 meters deeper under water, the atmosphere pressure will increase by one bar. That is to say, watch factories are generally test the waterproof function of watches with gauge.
So we will notice that there will be Bar or Atm logo on the Case to show its waterproof function. 1bar withstands the pressure of one kilogram per square centimeter. While the waterproof watch should be water resistant up to 100 m, in order to ensure it under best waterproof protection.
Rolex is the first watchmaker who invented diving watch. and it still keep the record for the deepest diving. Black Dial Rolex Deepsea 116660-98210 Copy Watches is an excellent diving watch in Rolex brand. Deepsea series is waterproof to a depth of over 3000 meters. Jacques Piccard once used this Rolex watch in a depth of over 3000 meters in the Mariana Trench, and magically the watch is still accurate performing. Therefore, Rolex has gained its popularity among a lot of extreme sports lovers.
Rolex Deepsea Series 116660-98210 Black Dial Replica Watches use automatic mechanical movement. Stainless steel with titanium case bottom collocates with 60 minutes scale unidirectional rotating bezel with anti-scratch ceramic Cerachrom word ring. Platinum coating digital and scale are on the dial. This watch is diameter 44 mm and waterproof to 3900 m.