How does the helium release valve on my Seamaster work? Can I open it on land?
The helium release valve works by letting helium out of your watch, and nothing else in. This only comes in handy when you are in a helium-saturated environment such as a dive bell. You can open it on land, but make sure you screw it back down before you submerge it in water. Leaving it open while the watch is under water can let water into the watch. Note: This system is consistant with the Seamaster Professional Chronograph – Chronometer as well…
