How to use (For Cal. 7R31)

1. Make sure that the watch is operating.
   To carry out the procedure, please make sure that the watch is in working state.

Please wind the mainspring when the watch is not working.
How to wind the mainspring (7R series)

2. Pull out the crown when the seconds hand is at the 12 o’clock position. (The seconds hand stops.)

(If the watch is equipped with the screw down crown, unscrew the crown before pulling it out.)



3. Turn the crown counterclockwise (6 o’clock direction) to advance the hands to set the current time.



4. Push the crown back into the normal position in accordance with a time signal.

(If the crown of your watch is a screw lock type, lock the crown.)

To ensure effective operation of the Spring Drive mechanism, observe the following instructions when you set the time.

1. Before setting the time, make sure to wind the mainspring sufficiently.

(Ensure that the power reserve indicator is showing a fully wound state.)

2. When starting to use a watch after it stops, wind the mainspring sufficiently. To set the time after that, wait for approximately 30 seconds after the seconds hand starts moving, then pull the crown out to the first click.

3. The seconds hand will stop moving when the crown is pulled out to the first click. Do not stop the movement of the seconds hand for longer than 30 minutes. If the stoppage of the seconds hand movement exceeds 30 minutes, push the crown back in, and wait for approximately 30 seconds after the seconds hand restarts moving, and then set the time.