Specifications

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57
■ SCREW LOCK TYPE CROWN
● How to use the screw lock type crown
The watch features a screw-lock mechanism that can securely lock the
crown to prevent any operational errors when it is not being operated.
Screw lock type crown
It is necessary to unlock the screw lock type crown before operating it.
Once you have nished operating the crown, make sure to relock it.
How to unlock the screw lock type crown How to lock the screw lock type crown
Turn the crown counterclockwise
(downward) to unscrew it.
Now the crown can be operated.
To loosen
Turn the crown clockwise (upward)
while gently pressing it in toward
the watch body until it stops.
Screw lock type crown is locked.
Screw lock type crown is unlocked.
※ Once the crown is unlocked, you can pull it out.
Turn the crown while pressing it in.
When locking the crown, turn it slowly with care, ensuring that the
screw is properly engaged. Be careful not to forcibly push it in, as doing so may
damage the screw hole in the case.
CAUTION
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■ 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.
● How to manually wind the mainspring by turning the crown
※ 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.
● Guide for winding state of the mainspring
Self-winding : The mainspring of the watch is designed to be fully wound when it is
worn for twelve hours per day for three to ve 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 60.
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 reserve indicator shows
a full-wound state. Immediately, the
small second hand starts moving.
３． Once you nish winding the main
-
spring, make sure you relock the
crown.
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” on page 62, and “How to set the calendar” on page 66.
⇒ ● Refer to “How to use the screw lock type
crown” on page 57.
⇒ ● Refer to “How to read the power reserve
indicator” on page 61.
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Power
Reserve
Indicator
Winding
state of the
mainspring
Fully wound Half wound Unwound
Number of
hours the
watch can run
Approximately 72
hours (3 days)
Approximately 36
hours (1.5 days)
The watch either
stops or is running
down.
■ POWER RESERVE INDICATOR
※ 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.
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.)
● How to read the power reserve indicator
※ The continuous operable time of the watch may vary depending on actual use conditions, such as the num-
ber 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 indica
-
tor to check the level of the remaining power. If necessary, manually wind the mainspring.
Power reserve indicator
The power reserve indicator lets you know the winding state of the main-
spring.
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■ HOW TO SET THE TIME AND CALENDAR
To set the time and calendar, set the 24-hour hand and minute hand rst,
and then set the hour hand and calendar.
● How to set the time
１． Make sure that the mainspring is su󰮐ciently wound and the watch is
working.
※ When setting the date and time, ensure that the watch is working.
３． Pull out the crown to the second
click when the small second hand is
pointing at the “ 0 ” second posi-
tion. The small second hand will
stop on the spot.
４． Turn the crown to rotate the 24-hour
hand and minute hand clockwise and set
them to the current time. While doing
so, set the minute hand a few minutes
behind the correct time, and then slow-
ly advance it to the exact minute(s).
※ Only the 24-hour and minute hands are to be set
rst. Even if the hour hand is indicating incorrect
time, or the date may be altered depending on the
position of the hour hand, it is not necessary to make
an adjustment at this stage.
２．Unlock the crown.
⇒ ● Refer to “How to use the screw lock
type crown” on page 57.
５． Push the crown back in simultane-
ously with the time signal.
※ T he se t t i n g o f t h e
24-hou r, minute and
small second hands to
the current time is now
completed.
Pull out the
crown to
the second
click.
Small second hand is
pointing at the “ 0 ”
second position.
６． To move on to the hour hand
and calendar setting, pull the
crown out to
the rst click.
Pull the crown out
to the rst click.
Push the crown back
in simultaneously with
the time signal.
Set the 24-hour
hand and minute
hand by rotating
them clockwise.