Ratio FreeDiver Helium-Safe 1000M Sapphire Automatic 1068HA96-34VA-BLU Men's Watch Not a big brand name, but the Ratio freediving watch has a reputation about its performance and longevity. It has a very masculine sophistication about it; wieldy and fits a wide range of wrist sizes. Eminently affordable, it’s quite a beast of a watch. The dark dial colour and an all-steel built makes it a fashionable street wear that you can wear everywhere, even with light formal clothing.