This watch is hard as steel. The Rolex Milgauss is made of a robust stainless steel alloy that is otherwise only used in the aerospace and chemical industries. This stable housing makes the Rolex Milgauss particularly corrosion-resistant, withstands a pressure of 10 bar and is particularly easy to clean. This is how the Swiss company's watch model retains its elegance and functionality in extreme weather conditions. However, this is not yet the highlight of this luxury watch from Rolex: the movement of calibre 3131, which was specially manufactured by Rolex, even resists magnetism.