Feel the power of a hydromechanical athlete. The handsome S1 Titanium DLC Green comes in black DLC titanium. The dark green fluid marking the hours subtly contrasts with the black and gray setting of the watch’s case, movement, and indications. When darkness sets in, or the weather changes and thunderclouds chase away the light, the green fluid, in combination with glowing Super-LumiNova® on different markings and the large, open-worked central minutes hand, guarantees optimal readability. To ensure the S1’s lightness, HYT deploys titanium and leaves out a dial. The lack of a dial saves weight and reveals the sports watch's impressive and unique hydromechanical caliber 501-CM, featuring two small bellows on the lower half of the open-worked dial. The S1 Titanium DLC Green comes with a Pure Black rubber and Velcro strap with case color-matching hardware.