Iconic dive watch designed in Italy to venture into the deepest depths
Stainless Steel Case with PU Strap
Japanese Automatic Movement with Caliber NH35
Sapphire Crystal
Luminous Hands And Markers
Ratio FreeDiver Helium Safe 1000M Stainless Steel Automatic 1066KE20-33VA-GRN Men's Watch
The Ratio FreeDiver Helium Safe 1000M Green Dial Stainless Steel Automatic 1066KE20-33VA-GRN is for them who love to explore! 
The Ratio FreeDiver Helium Safe 1000M Green Dial Stainless Steel Automatic 1066KE20-33VA-GRN is a heavy watch. The heavy-gauge surgical steel construction (case, screw-down crown, engraved case-back w/image of a free diver and the deployment clasp) gives it the weight. It pleasantly assures its presence with its heft while increasing the momentum of your hand’s movements, rather than tying you down with its weight. The thick gauge, surgical-grade stainless steel and the sapphire crystal offers high resistance against tremendous water pressure; physical impacts and violent tugs. The crystal, the case and the case back protect the Japanese mechanical movement (with its own shock/magnetism resistant features) within entirely against knocks, bumps and drops. 
The serrated bezel, the grooved crown and the knurled helium-valve cover – All facilitate a firm grip with wet fingers, with or without the diving gloves on. It is advised not to operate the crowns under wet conditions. Note: You’ll need the helium valve in your watch for times when you are in a chamber filled with breathing mixture; not necessarily diving bells. You open the valve to let the trapped helium out, which got past the gaskets and seals due to their very fine dimensions. A decreasing external/environmental pressure would make the helium to expand fast and damage the seals, crystal and gaskets in an attempt to escape. The helium valve provides an outlet for the built up pressure to escape.