62
63
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 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, 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.
64
65
■HOW TO SET THE TIME AND CALENDAR
To set the time and calendar, set the 24-hour hand and minute hand first,
and then set the hour hand and calendar.
●How to set the time
1. Make sure that the mainspring is sufficiently 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 position. 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 slowly
advance it to the desired time.
※ Only the 24-hour and minute hands are to be set first.
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.
Pull the crown
out to the first
click.
Small second hand is pointing at
the " 0 " second position.
Pull out the
crown to the
second click.
5. Push the crown back in simultaneously
with the time signal
.
※ The setting of the 24-hour,
minute and small second
hands to the current time
is now completed.
Push the crown back in simul-
taneously with the time signal.
6. To move on to the hour hand and cal-
endar setting, pull the crown out to
the first click.
Set the
24-hour
hand and
minute hand
by rotating
them clock-
wise.
Summary of Contents for Spring Drive Chronograph 9R86
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