The Watch Encyclopedia
Helium escape valve
Also known as: HEV · helium release valve
A valve designed to release accumulated gas in particular saturation-diving conditions.
Good to know
It is not normally a requirement for ordinary recreational diving.
Watch library
Related watches

Linde Werdelin
oktopus-tattoo-auction
View watch ↗Tudor
m2543c1a7nu-0001
View watch ↗Tudor
m25600tb-0001
View watch ↗Tudor
m25600tn-0001
View watch ↗Tudor
m25610tnl-0001
View watch ↗Connections use recorded specifications. Features vary by reference.