Problemet skjer i trykk kammeret.
Når He trenger seg inn i klokken, bygger seg trykket inni kassen og glasset popper ut når kammerets trykket senker seg.
Det skjer ikke med Ploprof eller Seiko sin 1000m: fordi He trenger seg ikke inn i kassen.
"These underwater habitats were pressurized living quarters for divers, providing a mix of breathing gas composed mainly of oxygen, nitrogen, and helium. The Sealabs included a sleeping area, bathroom, and living area and ensured that divers could spend multiple days at a time underwater performing all necessary tasks without having to make time-consuming, dangerous ascents on a regular basis."
"During ascents in diving chambers, it was noted that from time to time the crystal from one of the divers’ watches would pop off with a loud bang.
This was attributed to helium buildup in the case, which makes its way in via diffusion by penetrating the rubber gaskets.
As the diver ascends in the chamber, the gas pressure outside of the watch decreases, with the pressure inside of the watch remaining higher. Once the difference is too great, the pressure buildup causes the crystal to pop off the watch because crystals were generally simply friction fitted on dive watches of the 1960s."
Humans have long had a fascination with the depths of the ocean, striving to go ever deeper, ever further, and ever faster by pushing the limits of the human body, technology, and advancing modern science. But like all things, we are often faced with limits. Enter the helium escape valve.
quillandpad.com