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Blackstorm
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jashkasper43
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leejc
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"And this is when some of the earlier, standard dive watches started to show problems ¡X not with the outside pressure that they were successfully built to withstand but, rather unexpectedly, with pressure from the inside of the watch case: the breathing gas mixture used contains helium (and yes, those divers do in fact speak in high, funny voices because of this) that seeps into the watch case as well. As the pressure is slowly reduced, and the diver adjusts to normal atmospheric conditions, it was discovered that the internal pressure in the watch builds up due to its effective sealing, and the watch's crystal would sometimes pop off." "But more importantly: Do you need a helium-release valve? It is, of course, extremely tempting to answer that with a ¡§no,¡¨ but on second thought, that may require you to question the ¡§need¡¨ for many of the other features and complications on mechanical watches. So maybe a better answer is, "Why not?" http://www.watchtime.com/blog/dive-watch-wednesday-saturation-diving-helium-valves-and-extreme-dive-watches/ _________________ |
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MustangRoy
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camino
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Aceman
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leejc
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leejc
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