The Hydro Challenger was designed to withstand the most demanding deep-sea diving conditions. Hyperbaric chamber tests have proved the watch's resistance to a pressure of 1,110 Atm, equivalent to a depth of 11,100 meters. This amazing performance is due to a major technical innovation: the watchcase is filled with liquid silicone. This incompressible liquid guaranties absolute water-resistance and incomparable readability. It also provides highly reliable and silent operation.
Movement quartz with analog display, Long-lasting battery (7 years), Case mat stainless steel filled with liquid silicone, Special screw-down back to compensate for liquid expansion due to temperature increase, Functions: hours, minutes and seconds, Date, Rotating bezel Unidirectional with 60 minute graduations, Dial mat black with anti-U.V. treatment, Numeral indices, Fluorescent hands and indices, Crystal anti-glare sapphire, Water resistance record holder at 11,100 meters, Screw-down crown and back, Bracelet mat stainless steel or synthetic.