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Originally Posted by Mr. P |
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Quite the contrary. A watch is a life-critical device, because tanks have varying air characteristics at different depths, such as tank time. Also, if you go deep, then you Must know exactly how many minutes to hover at a given depth, in order to have enough time to breath out the nitrogen that collects in your blood. Cutting that short can equal death by the "bends". Nobody who dives seriously will entrust their life to a cheap watch, therefore most will go for the real deal, the kind that has the clamp gasket at the winder to screw down for a very tight seal, and the extra thick glass.
The only way to follow the US Navy dive tables is to know how much time you hover at a given depth, and how long you are down at a given depth before coming up for your decompression stops.
Mr. p
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