Dievas Focal 500 Meter Dive Watch with 6Steel Case, Sapphire Crystal and Rotating Diver Bezel - New-in-Box! The Focal point of this watch is the 6STEEL watch case. The design is based on a special 3 piece case construction, fabricated with high grade 316L stainless steel using the latest CNC technology. The well defined edges of the 45mm case are the result of the highest quality machining. Each case is further refined by hand to attain that brilliance and sharpness usually associated with only the best. The case is then put through another QC check to eradicate the smallest of imperfections before going for the Dievas 6STEEL treatment. 6STEEL is the hardening of the actual steel and not merely a foreign coating. Firstly, the premium 316L CNC watch case is heated in a mixture of carbon gases at a precise low temperature to allow diffusion of atoms. This intricate process is duplicated repeatedly over long hours to superimpose super saturation and the concentration of carbon. The sudden and immense energy from the carbon atoms accumulation results in a 30µm layered hardening of the case to 1300 Hv on the Vickers scale. That makes it 6 times the hardness of normal stainless steel. The toughened case is then put through a vacuum chamber for plasma coating to elevate corrosion resistance, particularly sea water and sweat immunity. This multi-layering is done to the whole watch including the caseback. Nothing is left to chance to create that robust watch we want. Each Focal watch sits for at least 2 weeks in the hardening chambers. Then it goes through another QC check before being sent to watchmakers for assembly. The case is then fitted with a 60 minute timing bezel for professional diving use. The enlarged unidirectional bezel with distinct gear-edged pattern is chosen for easy rotations when wearing diving gloves. Each click is engaged with precision and authority. There is absolutely no play between clicks. The Focal is conservatively rated at 500 meters water resistance. A double O-ring, 8mm screw down crown occupies the lower left hand corner for easy time adjustments. The surface is sealed with a 4mm thick blemish-free Swiss grade dome sapphire crystal that is treated with military grade anti-reflective coating for improved readability. A screw-down case back ensures that the watch is watertight. The watch is powered by a reliable and proven Swiss ETA-2824-2 automatic 28,000bhp automatic movement. It has been modified to Dievas s