Feel the power of a hydromechanical athlete. The bold S1 Titanium DLC Blue has a black DLC titanium case, retrograde blue fluidic hours inside a delicate borosilicate capillary tube above a white background, and white Super-LumiNova® on the large minute hand and the small hands indicating the seconds and the power reserve. There’s also luminous material on the indications and Arabic numerals on the black-coated, sand-blasted flange. 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 watch comes with a Pure Black rubber strap with a black DLC titanium buckle or a Pure Black Velcro strap with black DLC titanium hardware.