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Discussion Starter · #1 ·
Seems like every description of a watch with a rotating bezel lists it as uni-directional. Does anybody make a watch with a bi-directional bezel? And what is so bad about the bezel being able to turn both ways? Seems like that could be an advantage: if you turn it a click or two too far, you can just go back that number of clicks, instead of all the way around again.
 

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Agreed, it would be advantageous...except for divers with limited oxygen. For practicality resons where the bezel is actually important, stick with a uni. But in today's world, there are wrist-worn dive computers anyway.

There was a bi-directional piece that JS reviewed on Sunday night, can't remember which one. Sorry.
 

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The reason for the uni-directional bezel is dive related.
If it inadvertently gets bumped or moved it will only be in the direction that will indicate less,rather than more dive time remaining.

It wouldn't bode well to be underwater and thinking that you had 10 minutes of air left when you only have 2 minutes left.
 

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Yep...

Divers should be one direction so any inadvertant bump or movement will give you less time showing (err on the good side).

However, all GMT bezels should turn both ways since you travel in both directions across time zones..
 

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Yes, there are lots of companies that make bi-directional rotating bezel. One watch in particular is the Brequet Transatlantic Type XX. This is a pilots watch based on the watches sold to the French naval airforce by Breguet in WWII. This watch having a bi-directional bezel has to to with pilot stuff.
 

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I've got a couple of divers with bi-directional bezels buts thats because the bezels were too **** tight and wouldnt turn properly and I popped them off and removed the springs/wires.
Now they turn easily---in both directions
 

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:biggrin:

someone said most divers have computers (as I do) but the watch is how I was trained, and the computer is the "back up" for me.

time measured cannot exceed your dive plan and pressure group as calculated by the dive tables. if you stay longer than planned you may exceed your ability to "off gas" the excess nitrogen you hadn't planned on taking in so you could bump your bezel the wrong way stay down too long and have to make a trip to the re-compression chamber or worse. most dive outfits gauge sets have a tank pressure valve to tell you how much air you have or don't have. accurate timing bezels used to be even more important before the dive tables were made more conservative, the line was too fine due to each individuals physiology..

sorry, the instructor coming out.. bezels are/were important,


diver88:):)
 
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