The Ocean Star 600 Chronometer is a superlative diving watch that embodies the wealth of MIDO technological expertise. The COSC-certified Caliber 80 Si combines an exceptional autonomy of up to 80 hours of power reserve with extraordinary accuracy and shock-resistance thanks to its silicon balance-spring. Equipped with a helium valve, this diving watch withstands a pressure of up to 60 bar (600 m/1,968 ft). The ceramic bezel ring features numerals with Super-LumiNova Grade X®, offering ultra-powerful and long-lasting luminescence to ensure perfect readability in the ocean’s depths.