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Sinn Watch U2 SDR - EZM 5 Silicone. The diving watch U2 is a professional mission timer which uses genuine German submarine steel, a material with extreme seawater resistance and the highest level of non magnetic properties. Sinns special oil and an adjusted position tolerance of the parts in the diving watch U2 series guarantee operation at temperatures ranging from minus 45.C to plus 80.C. And that's not all: with the diver's bezel, this diving watch is well equipped to measure the duration of a dive accurately. Fogging of the dial poses a safety risk when diving. To prevent this, we use EDR seals. This material, with its extreme chemical resistance and only a quarter of the gas permeability of conventional seals, prevents moisture from diffusing into the diving watch. The slightly domed, 4.2 mm thick scratch resistance anti reflective sapphire crystal glass withstands even the highest pressures. The case is filled with a protective gas, while three drying capsules keep the interior dry.
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