You would understand why the bezel on most dive watches is arranged in the same general fashion. The first 15 minutes have hash marks to help the diver track what is known as an "emergency decompression stop," or sometimes known as a "safety stop." If at any time you deviate from your dive plan and dive below a depth which will increase your risk of decompression sickness, it is highly recommended that you ascend to aproximately 15 fsw and remain at that depth for 5 to 15 minutes. Your watch cannot track the amount of air you have left in your tanks because this can vary with the amount of effort you exert on a dive. Your gauges track the amount of air that you have remaining and even if you are using a dive computer, you should have planned this. Your watch can track your bottom time but that "safety stop" can be crucial if you don't want to come down with DCS.
: Hi! Although Iīm not diving I am A bit
: disturbed about the bezel design of my
: 2054.50 . itīs just that it doesnīt really
: make sense to me althouh any other divers
: watches have the same design too. What are
: the distinguished marks after the spot for?
: Arenīt the last minutes of the diving
: session more important than the first? If
: you have enough oxygen for twenty minutes
: you put the marker to the minute hand and
: then you have to get out before itīs on the
: 20. Am I right, please correct me? Wouldnīt
: it be easier putting the 20 to the minute
: hand and dive until it reaches the marker if
: the bezel was designed for this. You could
: even find it in darkness, the last minutes
: are better readable...?? I have posted a
: manipulated photo in the yahoo-group called
: "watchout" in case the link
: doesnīt work. Whatīs your opinion? I am
: excited to know what you think. Ooops onthe
: photo in the club the 50 is obviously in
: wrong place (could be fatal either) but I
: hope you know what I mean...
