Screw-Lock Type Crown - Seiko ASTRON User Manual

7
TO PRESERVE THE QUALITY OF YOUR WATCH

Screw-lock type crown

The screw-lock type crown features a mechanism that can securely lock the crown when they are not
being operated in order to prevent any operational errors and to improve its water resistant property.
● It is necessary to unlock the screw-lock type crown before operating it.
● Once you have finished operating the crown, make sure to relock it.
[ To unlock the crown ]
Turn the crown counterclockwise
(downward) to unscrew it. Now the
crown can be operated.
Unlock the crown
before operating it.
Unscrew
 When locking the crown, turn it slowly with care, ensuring that the screw is properly engaged.
Be careful not to forcibly push it in, as doing so may damage the screw hole in the case.
[ To lock the crown ]
Turn the crown clockwise (upward)
while gently pressing it in toward
the watch body until it stops.
Crown locked Crown unlocked
34
ASTRON 7X52 GPS SOLAR
After operating the
crown, lock it.
While pressing
the crown in
Screw