* To adjust the date only on a day such as the next day after the completion of a month that has less than 31 days
(February, April, June, September and November), please refer to “Date adjustment at the end of the month” P.19.
First, set the 24-hour hand and the minute hand.
1 Make sure that the watch is working.
* 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.
2 Pull out the crown to the second click when the seconds hand is pointing at the 0 second position. The
seconds hand stops moving.
* For models with screw down crown, please unlock the crown before operating it.
Pull out the crown to the second click when the seconds hand is pointing at the 0 second position.
How to read the power reserve indicator
As shown in the diagram below, when the indicator is pointing near 45 or F on the scale, it is fully wound. As the
mainspring unwinds, the indicator will move toward 0 or E. * The accuracy of a mechanical watch is affected by
the winding amount of the mainspring. If the watch is used for a long time when the winding amount is 20 hours
or less, stable accuracy may not be obtained. Therefore, it is recommended that the winding amount be
between 20 hours and full winding when you use the watch.
* Once the mainspring is fully wound, it will slip if you wind it further, so there is no chance of the mainspring breaking
even if it is over wound.
* The indicator may move beyond 0 or E, but this is not a malfunction.
The Power
Reserve Indicator
The winding state
of the mainspring
Fully wound Half wound Unwound
The number of
hours the watch
can run
Approximately 45
hours
Approximately 20
hours
The watch either
stops or is running
down.
* Designs vary depending on the model. Refer to the above diagram to read the approximate continuous operating
time.
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