How long does the Matrix dive comp run in watch mode?

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If I want to wear my Matrix dive computer as a dry land watch, how long will the battery charge last?

 

[Token]

Found my own answer.... From the Manual PDF...

A full charge allows you
to do up to 15 hours of diving, depending on
the usage of the backlight and the temperature
of the water. When used only as a watch, the
battery lasts approximately two weeks. As
a rule of thumb, Matrix uses about 5-6% of
battery per day as a watch and 4-5% for each
hour diving.