Rolex Sea-Dweller

Helium Valves, Saturation Diving & “Extreme” Dive Watches

Helium Valves, Saturation Diving & “Extreme” Dive Watches

In another installment in our series on the basics of divers’ watches, we explains why some dive watches have  built-in helium-release valves and why others don’t. We also explain why each type is perfectly OK, according to the type of diving you do.