Citizen Eco-Drive B872 - How to use Rotating bezel

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If your watch is a diver's watch
[2] How to use Rotating bezel
e rotating bezel is a convenient way to keep track of diving time, permitting
the indication of the elapsed and remaining times.
* Turn the rotating bezel counterclockwise, while pushing it. It is locked under
normal conditions to prevent free rotation, and cannot be turned in the
reverse direction for safety reasons.
*Determinationofelapsedtime:Alignthe▼ mark on the rotating bezel with
the minute hand. e elapsed time is shown by the rotating bezel scale.
*Determinationofremainingtime:Alignthe▼ mark on the rotating bezel to
a certain required time. e remaining time is read with the ring scale.