Certina DS Action Diver Powermatic 80 automatic watch.With its 300m water resistance and ISO 6425: 2018 certification, this model meets the highest standards for professional dive watches. The DS Action Diver 40. 5 mm also marks a milestone as the first Certina watch to feature the next evolution of the DS system: the New DS Concept Extreme Shock Resistance Brand : Certina Watch Collection : DS Action Diver Movement : Automatic Movement : Swiss Watch Case width (mm) : 40. 50 Watch Dial Colour : Black