Concord MARINER SL Bedienungsanleitung Seite 10

IMPORTANT
Water-resistance:
once the time/date setting is finished, you must screw the crown back
again in order to guarantee perfect water-resistance. To do this, push the
crown in to position 0 and turn it in a clockwise direction.
It is recommended that the crown and pushers not be handled under water.
QUARTZ 10