How to wind the mainspring
This watch is a manual winding type.
In order to wind it up completely, please refer to the following table;
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In case the watch is supposed to be wound up every day. |
About 20 turns of the crown will wind up the watch fully. |
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In case the watch was not wound up more than three days. |
About 60 turns of the crown will wind up the watch fully. |
For Cal. 9S63 models, look at the power reserve indicator to check the winding state (remaining power).
From the state of the mainspring being sufficiently wound, it continuously operates for approximately 72 hours or more.
If the mainspring is not wound up sufficiently, the watch may lose or gain time. To attain a high accuracy, we suggest that the mainspring is wound up fully once a day at a fixed time.
Generally speaking, the crown of the manual winding mechanical watch cannot be turned further when it is wound up fully. However, the crown of the Cal. 9S64 and 9S63 can be turned endlessly even after the watch is fully wound up. If you keep turning the crown, that gives no effect to winding, but the watch is so designed as to make the winding a little tighter and not to damage the watch. However, please refrain from excessive operation.
When the watch is used from a state in which the mainspring is unwound to a stop, it does not move immediately even if the mainspring is wound with the winding crown. This is because of the mechanical watch’s feature that the mainspring torque (force) is weak at the beginning of mainspring winding. The seconds hand starts moving when the mainspring is wound to reach a certain degree of torque strength, while the watch can be made to move advance by shaking it to rotate the balance wheel forcibly.
Do not pull out the crown.
(If the watch is equipped with the screw down crown, unscrew the crown.)
Slowly turn the crown clockwise (12 o’clock direction) to wind the mainspring.
CAUTION
For models with a screw down crown, remember to screw the crown in.
How to set the time
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Pull out the crown when the seconds hand is at the 12 o’clock position. (The seconds hand stops.)
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Push the crown back in to the normal position in accordance with a time signal. The watch starts operating.
Turn the crown to set the hour and minute hands to the desired time.
First click position
The orientation and design of the display may vary depending on the model.
Tips for more accurate time setting (For Cal. 9S63)
To ensure effective operation of the 9S63 mechanism, observe the following instructions when you set the time.
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Pull out the crown to the first click when the seconds hand is at the 12 o’clock position. (The seconds hand stops.)
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Turn the crown counterclockwise (6 o’clock direction) and stop when the minute hand is about one fourth of the way between the minute you want to set and the next minute.
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Turn the crown clockwise (12 o’clock direction) to return the minute hand to the desired time.
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Gently push the crown back in to the normal position.
