Not the minute or hour hand.
When the minute hands has reached the alarm time, it rings.
An example:
You start your dive at 16.00.
You want to start your ascent at 16.30 and want to be warned.
You set your Alarm to 16.30 with the upper crown.
Et voilà.
Best,
Nicolas
This message has been edited by amanico on 2011-01-13 07:44:21