The Ratio II FreeDiver is suitable for serious diving, with or without a breathing apparatus and is created to go for the max! Experience all the goodness of freediving and deep-sea diving without complicating it too much; without carrying complex instruments along with. It is one easily affordable dive watch that goes beyond the community swimming pools and recreational water sports when need be. | Ratio | | FreeDiver Helium Safe 1000M Stainless Steel Automatic 1066KE20-33VA-BLU Men's Watch | black and blue | Best Buy