Kindly unscrew the crown (position A) before any manipulation and screw
it back in once the watch has been adjusted.
The two-position crown
Position A
when the crown is unscrewed, it is in the manual winding
position.
Position B
when the crown is pulled out, it is in the time-setting position.
This position enables simultaneous setting of the hours hand,
minutes hand and dive-time hand.
Push the crown back into position A after setting the time, then screw it in.
Unidirectional rotating bezel graduated from 0 to 3 hours
Before starting a dive, turn the bezel to match the diamond-shaped marker
(
) with the elapsed-time hand. This enables the hand to indicate the time
directly on the bezel.
Semi-automatic helium valve
During a hyperbaric saturation in a chamber, helium manages to seep into the
watch. During the decompression phase, unscrewing the semi-automatic valve
facilitates the evacuation of the helium.
Screw the valve back in after use.
Opening the helium valve does not affect the water resistance of the watch.
* Patent jointly filed by Marc A. Hayek, President & CEO of Blancpain, certified professional diver, and
Laurent Ballesta, diver, biologist and underwater photographer, founder of the Gombessa expeditions.
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