To start the watch after it stops completely, wind it up either by turning the crown or swinging it from side to side
until the seconds hand starts moving. Then, set the time and date before putting the watch on the wrist. To wind
up the watch, turn the crown clockwise slowly. The watch cannot be wound by turning the crown
counterclockwise. In this way, the watch can be wound up fully. Furthermore, turning the crown further will not
break the spring.
* For the watch with screw down crown, please unlock the crown before operating it and be sure to lock the
crown after operating it.
Wind the mainspring until the power reserve indicator shows a fully-wound state. Once the watch is wound up
fully, it operates for about 45 hours.
* To check the winding state of the mainspring, refer to “Power reserve indicator” P.13.
Crown
There are two types of crowns, a normal crown and a screw down crown. Please check the type of the crown of your
watch.
* By locking the crown by screw, a screw down crown can prevent malfunction and increase water resistance.
* Be careful not to screw the crown in by force as it may damage the slots of the crown.
* If the watch is used without being wound up fully, gain or loss of time may result. To avoid this, wear the watch for
more than 10 hours a day. If the watch is used without being worn on the wrist, be sure to wind it up fully every day
at a fixed time.
* If you use a watch that has stopped with the mainspring unwound, winding the mainspring with the crown will not
start the watch immediately. That is because the mainspring torque or force is low at the beginning of its winding due
to the characteristics of mechanical watches. The seconds hand will start to move when a certain degree of torque is
reached after the mainspring has been wound up. However, swinging the watch from side to side to forcibly turn the
balance can start the watch sooner.
Power reserve indicator
The power reserve indicator lets you know the winding state of the mainspring.
Before removing the watch from your wrist, observe the power reserve indicator to check if the watch has stored
enough power to keep running until the next time you wear it. If necessary, wind the mainspring. (To prevent the
watch from stopping, wind the mainspring to store the excess power that will allow the watch to run for extra
time.)
* The continuous operating time of the watch may vary depending on the conditions of your usage (such as the
number of hours you wear the watch or the extent of your movement while wearing it).
* In a case where you wear the watch for a short period of time each day, observe the power reserve indicator to
check the level of the remaining power. If necessary, manually wind the mainspring.
How to set the time and date
How to set the time and date
To set both time and date, set the 24-hour hand and minute hand first, and then set the date and the hour hand.
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