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●Screw lock type button
It is necessary to unlock the screw lock type button before operating it.
※ Turn the button all the way until the slide cover descends and the button ring can no longer be
turned. Once you finish turning the button completely, the button becomes fully unlocked.
CAUTION
Make sure that you turn the button ring all the way until it stops, even
after you can see the guide line. Failing to do so can cause operational failure.
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Screw lock type button is locked.
Slide cover
Button ring
■HOW TO WIND THE MAINSPRING
This watch is a self-winding watch equipped with a manual winding mechanism. When
the watch is worn on the wrist, the motion of the wearer's arm winds the mainspring
of the watch.
When first using a stopped watch, it is recommended that you manually wind the
mainspring by turning the crown.
●Guide for winding state of the mainspring
Self-winding: ：
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The mainspring of the watch is designed to be fully wound when it is worn for twelve hours per day
for three to five consecutive days.
Manual winding:
Five full rotations of the crown will provide the power to run the watch for approximately ten
hours.
Observe the power reserve indicator to check the level of the remaining power.
Refer to "POWER RESERVE INDICATOR" on page 62.
※ The watch employs a device to prevent overwinding of the mainspring. Once the mainspring is fully
wound, the mainspring slips inside, disengaging the winding mechanism. When this happens, you can
still turn the crown without damaging the watch, however, please refrain from excessive operation of the
mainspring.
※ Under a low-temperature condition (below 0℃), always keep at least one-sixth of the watch power shown
by the power reserve indicator.
Screw lock type button is unlocked.
Guide line
Button ring
●How to use the screw lock type button
How to unlock the screw lock type button
To loosen
Turn the button ring until it stops.
Turn the button ring counterclockwise (down-
ward) to lower the slide cover gradually.
Turn the button ring further until you can
clearly see the guide line and the button ring
can no longer be turned. Now the screw lock
type button is unlocked and can be operated.
※Foreign particles and contamination can cause operational failure of the screw and/or button(s).
Refer to "TO PRESERVE THE QUALITY OF YOUR WATCH" on page 88.
●How to manually wind the mainspring by turning the crown
1. Unlock the crown.
2. Slowly turn the crown clockwise (upward) to wind the mainspring with
extra care not to press it in. Wind the mainspring until the power re-
serve indicator shows a full-wound state. The small second hand starts
moving.
3. Once you finish winding the mainspring,
make sure you relock the crown.
※ Refer to "How to use the screw lock type crown" on page 57.
※ Refer to "How to read the power reserve indicator" on page 63.
In order to set the time and calendar after winding
the mainspring manually, do not relock the crown but
continue the procedures.
※ Refer to "How to set the time and calendar" on page 64.
How to lock the screw lock type button
To fasten
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Turn the button ring until it stops.
Turn the button ring clockwise (upward)
until it stops.
Now the screw lock type button is com-
pletely locked.
Once you have finished operating the but-
ton, make sure that you relock it.
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