Seiko 9R86 User manual

本 社 東京都港区芝浦 1 丁目 2 番 1 号 〒 105-8467 http://www.seiko-watch.co.jp
BS9R86G-0704

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51
How to set the calendar …………………………………………………… 68
How to use the 24-hour hand …………………………………………… 71
■TIME DIFFERENCE ADJUSTMENT FUNCTION ………………… 72
How to use the time di󱐯erence adjustment function …………………… 72
List of time zone di󱐯erences in major regions of the world ………… 76
■CHRONOGRAPH ………………………………………………………… 78
How to use the chronograph (stopwatch) ………………………………… 80
Accumulated elapsed time measurement ………………………………… 82
■SPECIFICATIONS ……………………………………………………… 85
■REMARKS ON AFTER-SALES SERVICING ……………………… 86
■REMARKS ON REPLACEMENT PARTS …………………………… 87
■TO PRESERVE THE QUALITY OF YOUR WATCH ……………… 88
■TROUBLESHOOTING …………………………………………………… 96
CONTENTS
■CHARACTERISTICS …………………………………………………… 53
■NAMES OF THE PARTS AND THEIR FUNCTION ………………… 54
■SCREW LOCK TYPE CROWN AND BUTTON ……………………… 56
How to use the screw lock type crown …………………………………… 57
How to use the screw lock type button …………………………………… 59
■HOW TO WIND THE MAINSPRING …………………………………… 60
Guide for winding state of the mainspring ……………………………… 60
How to manually wind the mainspring by turning the crown …………… 61
■POWER RESERVE INDICATOR ……………………………………… 62
How to read the power reserve indicator ………………………………… 63
■HOW TO SET THE TIME AND CALENDAR ………………………… 64
How to set the time ………………………………………………………… 64
Tips for more accurate time setting ……………………………………… 67
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■CHARACTERISTICS
Spring Drive, the unique mechanism made available only by SEIKO technology, ensures
quartz accuracy while using the mainspring as its sole power source.
With Spring Drive as its basic structure, the Spring Drive Chronograph features the
world's rst center chronograph second hand which works in a perfectly smooth movement.
In addition to the self-winding mechanism, which uses the natural motion of the wearer's
arm as a power source to wind its mainspring, the watch is equipped with the manual wind-
ing mechanism, which is convenient to wind the mainspring when you start using the watch.
The watch keeps working for approximately 72 hours (three days) when the mainspring is
fully wound.
The watch features the power reserve indicator to show the winding state of the mainspring.
The glide-motion small second hand that moves in a perfectly smooth movement is one of the
remarkable features of this watch.
The watch is also equipped with a 24-hour hand, o󱐯ering a time di󱐯erence adjustment func-
tion, which works in conjunction with the calendar.
Spring Drive works by the power provided by the mainspring. Remember to check the power re-
serve indicator and keep the mainspring of the watch su󱐰ciently wound while using the watch.
Refer to "POWER RESERVE INDICATOR" on page 62.
You are now the proud owner of a Grand Seiko watch.
Grand Seiko watches are designed and manufactured to op-
erate with extremely high accuracy by taking advantage of
SEIKO's more than 100 years of experience in watchmaking
and the advanced technology that SEIKO can boast to the
world.
To preserve the highest quality of your Grand Seiko watch,
please read the instructions in this booklet carefully for its
proper use and care, and keep this booklet for ready reference.
※ For the details of the Spring Drive mechanism, refer to the separate volume "Spring Drive Handbook".
CAUTION

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■NAMES OF THE PARTS AND THEIR FUNCTION
※ The orientation and design of the display may vary depending on the model.
※ Some models may have screw lock type crown and button(s).
Refer to "SCREW LOCK TYPE CROWN AND BUTTON" on page 56.
●The mechanism of the crown
●Basic mechanism
Hour hand
Center chronograph
second hand
Calendar
Crown
Small second hand
Power reserve
indicator
Chronograph
hour hand
Chronograph
minute hand
START/STOP
button
RESET
button
Minute hand
24-hour hand
Screw lock type crown
Before operating the screw lock type crown, it is necessary to unlock it.
In order to prevent any operational errors, once you have nished operating the crown, make
sure to relock it.
Refer to "SCREW LOCK TYPE CROWN" on the following page 56.
L ０ １ ２
L: Screw lock type crown is at the locked position.
0: Screw lock type crown is at the unlocked position: the
mainspring can be manually wound.
1: Screw lock type crown is positioned for calendar set-
ting. (time di󱐯erence adjustment.)
2: Screw lock type crown is positioned for time setting.
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■SCREW LOCK TYPE CROWN AND BUTTON ●How to use the screw lock type crown
The watch features a screw-lock mechanism that can securely lock the crown and but-
tons to prevent any operational errors when they are not being operated.
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.
●Screw lock type crown
Turn the crown while pressing it in.
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.
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.
CAUTION

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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.
●How to use the 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.
How to unlock the screw lock type button How to lock the screw lock type button
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.
Turn the button ring clockwise (upward)
until it stops.
Now the screw lock type button is com-
pletely locked.
Once you have nished operating the but-
ton, make sure that you relock it.
Guide line
●Screw lock type button
Screw lock type button is locked.
Button ring Button ring ※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.
Turn the button ring until it stops. Turn the button ring until it stops.
Slide cover
CAUTION
Screw lock type button is unlocked.
To loosen To fasten
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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
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.
※ 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 62.
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 nish 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.

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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 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.
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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 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 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.
Pull the crown
out to the rst
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 rst click.
Set the
24-hour
hand and
minute hand
by rotating
them clock-
wise.

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8. Push the crown back in t o complet e the time setting.
Relock the crown.
Refer to "How to use the screw lock type crown" on page 57.
●Tips for more accurate time setting
Keep in mind the following points in order to set the time more accurately.
1. Before setting the time, wind the mainspring su󱐰ciently.
(Ensure that the power reserve indicator is showing a full-wound state.)
2. When starting to use a watch after it stops, wind the mainspring suf-
ciently. To set the time after that, wait for approximately 30 seconds
after the small second hand starts to move, then pull the crown out to the
second click.
3. The small second hand will stop moving while the crown is at the second
click. Do not stop the small second hand movement for longer than 30
minutes. If the stoppage of the small second hand movement exceeds 30
minutes, push the crown back in, and wait for at least 30 seconds after the
small second hand restarts moving, and then continue the time setting.
4. To set the time during any time between 9:00 P.M. and 1:00 A.M., tempo-
rarily set the hour hand back to 8:00 P.M., and then set the time.
(This procedure is required to ensure the proper engagement of the calen-
dar driving wheel.)
7. Turn the crown to set the hour hand.
While turning the crown, the moment the
date changes is midnight. When setting
the hour hand, be sure that AM/PM is set
correctly.
Adjust the calendar also at this point
if necessary.
※ The crown can be turned in either direction
to adjust the date, however, it is recommend-
ed to turn the crown in the direction which
enables you to set the date with a smaller
adjustment.
※ Turn the crown slowly, checking that the
hour hand moves in one-hour increments.
※ When adjusting the hour hand, the other
hands may move slightly. However, this is not
a malfunction.
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●How to set the calendar
Two full rotations of the hour hand will change the date for one day.
The date advances one day by turning the hour hand two full rotations clockwise (for
24 hours), while the date is set back one day by turning the hour hand two full rota-
tions counterclockwise.
Manual date adjustment is required on the rst day after a month that has less than
31 days: February, April, June, September and November.
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.
4. Each time the hour hand makes two full rotations by turning the crown, the date
is adjusted one day. While turning the crown, the moment the date changes is mid-
night. When setting the hour hand, be sure that AM/PM is set correctly.
3. Pull out the crown to the rst click.
Pull out the crown
to the rst click.
2. Unlock the crown.
Refer to "How to use the screw lock type
crown" on page 57.
※ The crown can be turned in either direction to
adjust the date, however, it is recommended to
turn the crown in the direction which enables you
to set the date with a smaller adjustment.
※ Turn the crown slowly.
※ When adjusting the hour hand, the other hands
may move slightly. However, this is not a malfunc-
tion.
Turning the crown clockwise (upward): Each
time the hour hand makes two full rotations, the
date is set back one day.
Turning the crown counterclockwise (downward):
Each time the hour hand makes two full rota-
tions, the date is advanced one day.
Before
date
adjustment

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5. Upon completion of setting, make sure that the time indicated is correct,
and then push the crown back in. The calendar setting is now completed.
Relock the crown.
Refer to "How to use the screw lock type crown" on page 57.
※ The calendar is designed to work in conjunction with the movement of the hour hand, therefore,
incorrect setting of AM/PM will cause the date to change at noon.
※ The crown can be turned in either direction to adjust the date, however, it is recommended to
turn the crown in the direction which enables you to set the date with a smaller adjustment.
※ Turn the crown slowly, checking that the hour hand moves in one-hour increments.
※ When adjusting the hour hand, the other hands may move slightly. However, this is not a mal-
function.
●How to use the 24-hour hand
This watch has two di󱐯erent types of 24-hour hand usage.
<Type 1>
24-hour hand as an AM/PM indicator
Simply using the 24-hour hand to show the
24-hour time as an AM/PM indicator.
(This is the standard usage type for the
24-hour hand.)
<Type 2>
24-hour hand as a dual time indicator
Using the time di󱐯erence adjustment function, set the 24-hour
hand to indicate a time di󱐯erent from the time that the hour and
minute hand indicate, which is of a place in a di󱐯erent time zone
area with at least one hour of time di󱐯erence from where you are.
Refer to "How to use the time di󱐯erence adjustment function"
on page 72.
Both the hour
hand and the
24-hour hand are
indicating the
Japan time 10:00
A.M.
Hour hand: Japan
time 10:00 A.M
24-hour hand: New
York time 8:00
PM
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■TIME DIFFERENCE ADJUSTMENT FUNCTION
For example, while traveling abroad and staying in a place with a di󱐯erent time from where you
live, you can conveniently set the watch to indicate the local time in the di󱐯erent time zone area
without stopping the watch.
The hour hand indicates the time of the place where you currently are, while the 24-hour hand in-
dicates the time of the place of origin.
The calendar works in conjunction with the movement of the hour hand. If the time di󱐯erence is
correctly adjusted, the watch displays the correct date of the place where you are staying.
※ The crown can be turned in either direction to adjust the date, however, it is recommended to turn the crown in the
direction which enables you to set the date with a smaller adjustment.
※ Turn the crown slowly, checking that the hour hand moves in one-hour increments.
※ While turning the crown, the moment the date changes is midnight.
※ When adjusting the hour hand, the other hands may move slightly. However, this is not a malfunction.
3. Pull out the crown to the rst click.
Pull out the crown to
the rst click.
2. Unlock the crown.
Refer to "How to use the screw lock type
crown" on page 57.
●How to use the time difference adjustment function
4. Turn the crown to set the hour hand to indicate the time of the place where you are
staying. Make sure that AM/PM is correctly set.
※ The calendar is designed to work in conjunction with the movement of the hour hand,
therefore, incorrect setting of AM/PM will cause the date to change at noon.
Refer to "List of time zone di󱐯erences in major regions of the world" on page 76.
Turning the
crown clockwise
(upward): The
hour hand is set
back one hour.
Turning the
crown counter-
clockwise (down-
ward): The hour
hand is advanced
one hour.
1. Make sure that the mainspring is su󱐰ciently wound and the watch is working.
※ When setting the hour hand to use the time di󱐯erence
adjustment function, ensure that the watch is working.

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5. Upon completion of setting, make sure that the time indicated is correct, and then
push the crown back in. The setting procedure is now completed. Relock the crown.
Refer to "How to use the screw lock type crown" on page 57.
If you set the time during any time between 9:00 P.M. and 1:00 A.M., temporarily set the hour
hand back to 8:00 P.M., and then set the time.
Example 1
Hour hand and calendar: Area A (Japan)
24-hour hand: Area B (New York)
●Selectable display mode
With the time di󱐯erence adjustment function, the watch features a dual time display
which shows time in two di󱐯erent time zones. It o󱐯ers two display modes which you
can select to suit your needs and preference.
Set the 24-hour hand rst, and then set the hour hand.
Example 2
Hour hand and calendar: Area B (New York)
24-hour hand: Area A (Japan)
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Names of the cities Time difference from
Japan Time difference from UTC Other cities
Paris ★ - 8 hours + 1 hour Rome ★ , Amsterdam ★
London ★ - 9 hours ± 0 Casablanca
Azores ★ - 10 hours - 1 hour
Rio de Janeiro ★ - 12hours - 3 hours
Caracas - 13 hours - 4 hours Santiago ★
New York ★ - 14 hours - 5 hours Washington★, Montreal★
Chicago ★ - 15 hours - 6 hours Mexico City ★
Denver ★ - 16 hours - 7 hours Edmonton ★
Los Angels ★ - 17 hours - 8 hours San Francisco ★
Anchorage ★ - 18 hours - 9 hours
Honolulu - 19 hours - 10 hours
Midway Islands - 20 hours - 11 hours
There are time zone differences based on time offsets from Coordinated Universal Time (UTC), which has
been internationally adopted. The world is divided into 24 time zones, and neighboring time zones have a
one-hour time difference, so that they correspond to the rotation of the earth which makes one full rotation
in 24 hours (1 day). In some regions of the world, daylight saving time is individually observed.
Daylight saving time is a system that advances the official local time by one hour during the summer to take
advantage of longer daylight hours.
●List of time zone differences in major regions of the world
The time differences and use of daylight saving time in each region are subject to change according
to the governments of the respective countries or regions.
Refer to "How to use the time di󱐯erence adjustment function" on page 72.
Names of the cities Time difference from
Japan Time difference from UTC Other cities
Wellington ★ + 3 hours + 12 hours Fiji islands, Auckland ★
Nouméa + 2 hours + 11 hours Solomon Islands
Sydney ★ + 1 hours + 10 hours Guam, Khabarovsk ★
Tokyo ± 0 + 9 hours Seoul, Pingyang
Hong Kong - 1 hour + 8 hours Manila, Beijing, Singapore
Bangkok - 2 hours + 7 hours Jakarta
Dacca - 3 hours + 6 hours
Karachi - 4 hours + 5 hours Tashkend ★
Dubai - 5 hours + 4 hours
Moscow ★ - 6 hours + 3 hours Mecca, Nairobi
Cairo ★ - 7 hours + 2 hours Athens ★, Istanbul ★
Regions marked with ★ use daylight saving time (as of January, 2007).

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●Names of the chronograph parts and their function
※ The orientation and design of the display may vary depending on the model.
※ Some models may have screw lock type buttons.
Refer to "How to use the screw lock type button" page 59.
30-minite dial
12-hour dial
Center chronograph
second hand
Chronograph
hour hand
Chronograph
minute hand
START/STOP
button
RESET button
■CHRONOGRAPH
A chronograph is a watch that has a stopwatch function in addition to a time
display function.
This watch features a stopwatch function which can measure up to 12 hours.
●Before using the stopwatch
1. Make sure that the mainspring is sufficiently wound. Ensure that the
power reserve indicator shows a full-wound state of the mainspring.
When using the stopwatch, ensure that the watch is working.
2. Make sure that the center chronograph second hand is pointing at the 0
position. If it is not pointing at the 0 position, press the RESET button.
＊ Be careful not to pull out the crown while the chronograph second hand is moving. The
chronograph second hand will be stopped in the middle of the measurement.
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●How to use the chronograph (stopwatch function)
1. Make sure that the mainspring is sufficiently wound and the watch is
working.
2. If your watch has screw lock type buttons, unlock them.
Refer to "How to use the screw lock type button" on page 59.
4. Stop measuring time.
At the moment you want to nish the mea-
surement, press the START/STOP button
again to stop the chronograph hands.
Example: 6 hours 20 minutes 10 seconds and 8
5. Reset the chronograph hands.
After stopping the chronograph hands,
press the RESET button to return all the
chronograph hands to the 0 position.
The chronograph minute hand on the 30-minute
dial completes two full rotations in an hour. The
display of the 12-hour dial will be helpful as a
rough indication to read the 30-minute dial.
3. Start measuring time.
Upon pressing of the START/STOP
button, the chronograph second hand
starts mov ing a nd the st opwatch
starts measuring time.

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●Accumulated elapsed time measurement
1. Make sure that the mainspring is sufficiently wound and the watch is
working.
2. If your watch has screw lock type buttons, unlock them.
Refer to "How to use the screw lock type button" on page 59.
3. Start measuring time.
Upon pressing of the START/STOP
button, the chronograph second hand
starts moving a nd the stopwatch
starts measuring time.
4. Stop measuring time.
At the moment you want to finish the
measurement, press the START/STOP
button again to stop the chronograph
hands. The measured time will be dis-
played.
5. Restart measuring time.
Upon pressing of the START/STOP but-
ton again, the chronograph hands restart
moving from the position they had previ-
ously stopped.
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■SPECIFICATIONS
1. Features: 3 hands (hour, minute and small second hands), 24-hour hand, Calendar display,
Time difference adjustment function, Power reserve indicator, Stopwatch: Center chro-
nograph second hand, Chronograph hour and minute hands
2. Frequency of crystal oscillator: 32,768 Hz
3. Loss/gain (monthly average): ± 15 seconds ( ± 1 second per day) (worn on your wrist at
normal temperature range between 5℃ and 35℃)
4. Operational temperature range: between -10℃ and +60℃
Under the low-temperature condition (below0 ℃), always keep at least one sixth of the
watch power shown by the power reserve indicator.
5. Driving System: Mainspring (Self-winding type with manual winding function)
6. Hand movement: Glide-motion hands
7. Continuous operable time: Approx. 72 hours (Approx. 3 days) when the normal time dis-
play function and stopwatch function are used. (If the power reserve indicator shows the
power supplied by the mainspring is full before starting the watch.) Depending on condi-
tions of use, the continuous operable time may become shorter than the above.
8. IC (Integrated Circuit):Oscillator, frequency divider, and spring drive control circuit (C-
MOS-IC): 1 piece
9. Number of jewels: 50 jewels
The specifications are subject to change without prior notice due to product improvements.
8. Reset the chronograph hands.
After stopping the chronograph hands, press the
RESET button to return all the chronograph hands
to the 0 position.
6. Stop measuring time.
At the moment you want to nish the measure-
ment, press the START/STOP button again to
stop the chronograph hands. The measured time
displayed at this time will be the total of the
rst and the second measurement (accumulated
elapsed time).
7. Repeat measuring time cumulatively.
Step 5 and 6 above can be repeated as required.
As you repeat pressing of the START/STOP
button, the measurement will stop and restart
and each elapsed time measurement will be ac-
cumulated.

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■REMARKS ON REPLACEMENT PARTS
SEIKO makes it policy to usually keep a stock of spare parts for Grand
Seiko watches for 10 years. In principle, your watch can be reconditioned
within this period if used normally. (Replacement parts are those which are
essential to maintaining the functional integrity of the watch.)
The number of years that a watch is considered repairable may vary greatly
depending on the conditions under which it was used, and normal accuracy
may not be achieved in some cases. We recommend, therefore, that you
consult the retailer from whom the watch was purchased when having them
repair your watch.
The case, dial, hands, glass and bracelet, or parts may be replaced with
substitutes if the originals are not available.
For any other information, contact the retailer from whom your watch was
purchased or the "CUSTOMER SERVICE DEPARTMENT" of SEIKO
WATCH CORPORATION.
■REMARKS ON AFTER-SALES SERVICING
Your Grand Seiko watch was strictly checked and completely adjusted at
the factory to ensure its high accuracy. However, if your watch gets out of
order with the correct way of use as described in this instruction booklet
within the guarantee period, take your watch to the dealer from whom your
watch was purchased together with the certificate of guarantee. Repair and
adjustment will be made without charge.
The guarantee period is one year from the date of purchase. For the move-
ment only, this guarantee period is extended to two years from the date of
purchase. More detailed guarantee coverage is provided in the certificate
of guarantee.
For repair services after the guarantee period has expired or for any other
information regarding the Grand Seiko, please contact the retailer from
whom your watch was purchased or the "CUSTOMER SERVICE DE-
PARTMENT" of SEIKO WATCH CORPORATION.
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RASH AND ALLERGY
Adjust the bracelet and band so that there will be a little clearance between the
bracelet or band and your wrist to avoid accumulation of perspiration.
If you are constitutionally predisposed to rash, the band may cause you to develop a
rash or an itch depending on your physical condition.
The possible cause of the rash are as follows:
1. Allergy to metals or leathers
2. Rust, dust or perspiration on the watch or band
If you develop any skin reactions, take off the watch and consult a doctor immediately.
■TO PRESERVE THE QUALITY OF YOUR WATCH
CARE OF YOUR WATCH
The case and bracelet touch the skin directly just as underwear.
If they are left dirty, the edge of sleeve may be stained with rust of those who have a
delicate skin may have a rash.
After removing the watch from your wrist, wipe perspiration or moisture with a soft
cloth. This will prevent the watch from being soiled, adding to the life of the gasket.
Do not clean the watch with chemicals (especially with organic solvents such as
benzene, thinner, alcohol, detergent, etc.). Otherwise, the watch may be deteriorated.
LEATHER BAND
When removing moisture from a leather band, do not rub the band with the cloth as
they may discolor it or reduce its gloss. Be sure to blot up the moisture using a soft
dry cloth.
Please note that leather bands may become less durable when they are moistened.
METAL BRACELET
Clean the watch bracelet with a soft toothbrush dipped in water or soapy water.
CAUTION
CAUTION
WATER RESISTANCE
・ If your watch is 3 bar water resistant, do not use it in water.
・ If your watch is 5 bar water resistant, do not use it in any type of diving including
skin diving.
・ If your watch is 10 or 20 bar water resistant, do not use it in saturation diving or
scuba diving.
WARNING

90
91
WATER RESISTANCE
・ Check the dial or case back of your watch for the water resistant quality, and then see the
table below.
・ Do not turn or pull out the crown when the watch is wet, as water may get inside the watch.
Designedand
manufacturedtowithstand
accidentalcontactwith
watersuchassplashes
andrain.
Suitableforshallow
divingwithoutaheavy
breathingapparatus.
Genuinediving
usingheliumgas.
Suitableforswimming,yachting
andotheraquaticsportsaswellas
forworkscloselyassociatedwith
watersuchaskitchenwork,
wateningandfishing.
Condition
ofuse
Degree
ofwater
resistance
Nowaterresistance
Waterresistance
（3bar）
Waterresistance
（5bar）
Waterresistance
（10bar）
Waterresistance
（20bar）
Indicationforwater
resistance
a: Indicationonthedia l
b:Indicationonthe
caseback
WATERRESISTor
WATERRESIST5BAR
Noindication,or
WATERRESIST20BAR
WATERRESIST20BAR
Noindication,or
WATERRESIST10BAR
WATERRESIST10BAR
Noindication
Noindication
Noindication
WATERRESIST
Noindication
× × ×××
◯ × ×××
◯ ◯ ×××
◯ ◯ ◯××
◯ ◯ ◯××
a
b
a
b
a
b
a
b
a
b
Genuine
divingusing
scuba.
CAUTION The case back shows the performance, caliber/case number of your watch
<Regular case back> <See-through case back>
※ The above figures are examples. Both of them may be different from the figure on
the case back of your watch.
Caliber and Case
Number
The number to
identify the type
of your watch
Water resis-
tance
refer to Page
90.
Magnetic resis-
tance refer
to Page 92.
92
93
Grand Seiko Spring Drive conforms to the Magnetic Resistance Standard ※ of JIS Class 1.
The watch has magnetic resistance to maintain performance in most cases even where it is
brought close to (at least 5cm spaced from) equipment generating a magnetic field in normal
life. However, the movement part is magnetized when it encounters a strong magnetic field,
thereby accuracy may go out of order. Pay attention so as not to bring the instrument close
to equipment (health appliances, speakers, and mobile phones using a magnet) generating a
strong magnetic field within 5cm.
If the accuracy exceeds the accuracy target range ( ± 15 seconds/month) during normal
usage due to magnetization, removal of magnetism and accuracy readjustment works are
charged regardless of the guarantee period.
●MAGNETIC RESISTANCE
Examples of common items that generate a magnetic field
●Magnetized items that may affect watches
Speaker of audio instruments, radios, ear-
phones, mobile phone
Magnetic clips Magnetic accessories
Magnetic health equipment (such
as magnetic plasters, magnetic pil-
lows, magnetic back belts etc.)
Magnetic door seal of
refrigerator or furniture
Magnetic buckle of handbags or purses
Classication of
JIS antimagnetic
watches
Certied level
of magnetic re-
sistance
Indication of
antimagnetism on
the case back
Antimagnetic quality
Class 1 4800A/m
The watch has magnetic resistance to
maintain perfor mance in most case s
where it is brought close to (at least
5cm spaced from) equipment generating
a magnetic eld in normal life.

94
95
Inspection and adjustment by disassembly and cleaning (overhaul) of this
watch will be performed by SEIKO. When you take the watch to the re-
tailer from whom it was purchased, request that the watch be inspected and
overhauled by SEIKO.
We suggest that you have your watch checked by SEIKO every 3 to 4 years
for long-time use of your watch.
※ The movement of this watch has a structure that consistent pressure is applied on its pow-
er-transmitting wheels. To ensure these parts work together properly, periodic inspection
including cleaning of parts and movement, oiling, adjustment of accuracy, functional check
and replacement of worn parts is needed.
Inspection and adjustment by disassembly and cleaning (overhaul) within 3 to 4 years from the
date of purchase is highly recommended for long-time use of your watch.
Contact the retailer from whom the watch was purchased for inspection and adjustment by dis-
assembly and cleaning (overhaul) of your watch. Make sure that the gasket and push pin will be
also replaced with new ones.
・ For any questions or concerns, contact the "CUSTOMER SERVICE
DEPARTMENT" of SEIKO WATCH CORPORATION.
●Inspection and adjustment by disassembly and cleaning (overhaul)
・ If the watch is left in a temperature below − 10℃ or above ＋ 60℃ for a
long time it may function improperly or stop operating.
・ Do not leave the watch in a place where it will be subjected to strong
magnetism (for example, near television sets, loudspeakers or magnetic
necklaces).
・ Do not leave the watch where there is strong vibration.
・ Do not leave the watch in a dusty place.
・ Do not expose the watch to gases or chemicals.
(Ex.: Organic solvents such as benzene and thinner, gasoline, nail polish,
cosmetic spray, detergent, adhesives, mercury, and iodine antiseptic solu-
tion.)
・ Do not leave the watch in close contact with hot spring water, or do not
keep it in a drawer having insecticides inside.
●PLACES TO KEEP YOUR WATCH
96
97
Solution
Wind the mainspring and reset the time. While you are wearing the watch or when you take it o󱐯, check the re-
maining power shown by the power reserve indicator and wind the mainspring if necessary.
Wear the watch for an extended period of time, or when taking o󱐯 the watch, turn the crown to wind the main-
spring if the remaining power shown by the power reserve indicator is not su󱐰cient for the next use.
Return the watch to a normal temperature so that it works accurately as usual, and then reset the time. The watch has been
adjusted so that it works accurately when it is worn on your wrist under a normal temperature range between 5℃ and 35℃ .
Correct this condition by moving and keeping the watch away from the magnetic source. If this action does not
correct the condition, contact the retailer from whom the watch was purchased.
Reset the time. If the watch does not return to its normal accuracy after resetting the time, contact the retailer
from whom the watch was purchased.
Contact the retailer from whom the watch was purchased.
If the watch is left at a temperature below 0℃ , it may stop if the power reserve indicator is showing less than
one-sixth of the power reserve. In such a case, turn the crown to wind the mainspring.
It takes several seconds before the adjustment function starts working. Set the time after the second hand moves
for approximately 30 seconds to set the time correctly.
Advance the hour hands for 12 hours to correctly set the time and date.
■TROUBLESHOOTING
Trouble Possible cause
The watch stops operating.
(The chronograph hands do not move.) The power supplied by the mainspring has been consumed.
Even thou gh you wear the watch every day, the
power reserve indicator does not move up.
The watch is worn on your wrist only for a short period of
time, or the amount of arm movement is small.
The watch temporarily gains or loses time.
The watch has been left in extremely high or low tempera-
tures.
The watch has been left close to an object with a strong
magnetic eld.
You drop the watch, hit it against a hard surface, or wear it while
playing active sports. The watch is exposed to strong vibrations.
The inner surface of the glass is clouded. Moisture has entered the watch because the gasket has deteriorated.
The watch stops even though the power reserve
indicator is not showing "0." The watch has been left at a temperature below 0℃ .
Right after starting the watch, it seems that the second
hand moves more quickly than usual when setting the time.
When starting the watch, it takes a little time before the
adjustment function starts working (this is not a malfunction).
The date changes during daytime. AM/PM is not correctly set.
Refer to "How to manually wind the mainspring by turning the crown" on page 61. Refer to "How to set the time" on page 64.
※ In the event of any other problem, please contact the retailer from whom the watch was purchased.