Fully screwed-down crown.  In this position the Datejust chronometer is warranted pressure-proof to a depth of 330 feet (100 meters).  The watch is ready to be worn.

Crown unscrewed to the point where it is free of the screw threads.  Watch is in position for hand winding if necessary.

Crown pulled out to the first notch.  Turning the crown clockwise advances the date rapidly which is particularly useful at the end of a month of less than 31 days. (Turning the crown counter-clockwise has no effect).  During these operations, the watch movement continues to function normally.

Crown pulled out to the last notch.  Position for resetting the hands either clockwise or counter-clockwise.  The second hand is stopped automatically and will not advance again until the crown is pushed back to Position 2.  Screw the crown down fully to make the watch pressure-proof once again.

The crown is fully screwed down.  In this position the Day-Date chronometer is pressure-proof to a depth of 330 feet (100 meters).

The Crown is unscrewed to the point where it is free of the screw threads.  Watch is in position for hand winding if necessary.

Crown pulled out to the first notch.  Turning the crown clockwise advances the date rapidly which is particularly useful at the end of a month of less than 31 days. (Turning the crown counter-clockwise has no effect).  During these operations, the watch movement continues to function normally.

To Set the Day:  Pull the crown to the last notch.  Turn the hands counter-clockwise.  Once the correct day is reached, turn the hands backwards 12 hours if you are setting your Rolex in the morning.

To Set the Time:  Crown pulled out to the last notch.  Position for resetting the hands either clockwise or counter-clockwise.  The second hand is stopped automatically and will not advance again until the crown is pushed back to Position 2.  Screw the crown down fully to make the watch pressure-proof once again.

The crown is fully screwed down.  In this position the Day-Date chronometer is pressure-proof to a depth of 330 feet (100 meters).

The Crown is unscrewed to the point where it is free of the screw threads.  Watch is in position for hand winding if necessary.

Crown pulled out to the first notch.  Turning the crown clockwise advances the date rapidly which is particularly useful at the end of a month of less than 31 days. (Turning the crown counter-clockwise has no effect).  During these operations, the watch movement continues to function normally.

Crown pulled out to the last notch.  Position for resetting the hands either clockwise or counter-clockwise.  The second hand is stopped automatically and will not advance again until the crown is pushed back to Position 2.  Screw the crown down fully to make the watch pressure-proof once again.