Hanhart PRIMUS Mode D'emploi Et Garantie page 13

Using the unidirectional rotating bezel
(Primus Diver)
The unidirectional rotating bezel on your Primus
Diver, with its precision ratchet, is for the meas-
urement of dive time. For safety, the bezel can
only turn counter-clockwise. If it is accidentally
moved, it will indicate a longer elapsed dive
time. At the start of a dive, turn the bezel so that
the zero mark is in front of the minute hand (V1).
The minute hand will always show the number
of minutes that have elapsed since the dive
started (V2). 30 minutes have elapsed since the
start of the dive.
Important point
The Primus Diver is not a diver's watch for
scuba diving. You should not wear the Primus
Diver for scuba diving unless you use a profes-
sional diving computer at the same time.
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