10
USING
YOUR WATCH
ROLEX
SERVICE
THE HEART OF THE
GMT-MASTER II MODEL
Screwed-down position (position 0)
The crown is completely screwed down
against the case. When the crown
is in this position, the Oyster Perpetual
GMT-Master II is guaranteed waterproof
to a depth of 100 metres (330 feet).
Manual winding (position 1)
The crown is unscrewed. To wind
the watch manually, turn the crown
clockwise. (Turning in the other direction
has no effect.) When setting the watch
for the first time or after the watch
has stopped, complete a minimum of
25turns for partial winding.
SETTING THE WATCH