For Cal. 9S64 - Seiko Cal. 9S85 Operating Instructions Manual

HOW TO USE

(FOR CAL. 9S64)

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 ;
In case the watch is supposed
to be wound up every day.
In case the watch was not wound
up more than three days.
○ 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 Cal. 9S64 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.
How to wind the mainspring
※ 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 second 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 lock type crown,
unscrew the crown before
pulling it out.)
CAUTION
For models with a screw lock type crown, remember to screw the crown in.
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About 20 turns of the crown will wind up
the watch fully.
About 60 turns of the crown will wind up
the watch fully.
Slowly turn the crown
clockwise (12 o'clock
direction) to wind the
mainspring.
① Pull out the crown when the
second hand is at the 12 o'clock
position.
(The second hand stops.)
Turn the crown to set the current
time.
② Push the crown back in to the
normal position in accordance
with a time signal.
The watch starts operating.
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HOW TO USE (For Cal. 9S64)