Marathon GSAR Manuel page 10

1 2 3
The crown must be screwed down in position 1 for optimal
water-resistance.
LOCKING THE CROWN
4
From position 2, push the crown into position 1 and rotate clockwise to lock the
crown back into place.
NOTE: The GSAR was designed to automatically hand-wind the watch while
screwing in the crown. Avoid hand-winding where necessary as this could cause
damage to the movement.