Seiko SPRING DRIVE CHRONOGRAPH, 9R86 User Manual
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How to set the calendar …………………………………………………… 68
How to use the 24-hour hand …………………………………………… 71
■TIME DIFFERENCE ADJUSTMENT FUNCTION ………………… 72
How to use the time dierence adjustment function …………………… 72
List of time zone dierences 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 SEI KO technology, ensure s
quartz accuracy while using the mainspring as its sole power source.
With Spri ng Drive as its basic st ru cture , t he Spring Drive Ch ronog raph features t he
world's rst center chronograph second hand which works in a per fectly smooth movement.
In addition to the self-winding mechanism, which use s the natural motion of the wearer's
arm as a power sou rce to wind its mainspring, the watch is equipped with the manual winding 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, oering a time dierence adjustment function, which works in conjunction with the calendar.
Spring Dr ive works by t he power provide d by the mainspring. Remember to check t he power reserve indicator a nd keep th e mainspring of the watch sucient ly wound while using the watch.
Refer to "POWER RE SERVE I NDICATOR" o n page 62 .
You are now the proud owner of a Grand Seiko watch.
Grand Seiko watches are designed and manufactured to operate 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 Spr ing Drive mechan ism, refer to the se parate volume "Spr ing Dr ive Handb ook".
CAUTION
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■NAMES OF THE PARTS AND THEIR FUNCTION
※ The orientation a nd design of the display may vary depending on the model.
※ Some models may have screw lock ty pe crown and button(s).
Refer to "SCREW LOCK TYPE CROWN AND BUT TON" on page 56.
●The mechanism of the crown
●Basic mechanism
Hour hand
Center chronog raph
second hand
Calendar
Crown
Small second hand
Power reserve
indicator
Chronograph
hour hand
Chronograph
minute ha nd
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 dierence 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 buttons 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 cou nt erclockwise
(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 t ype crow n 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, ensu ring 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 fin ish tu rnin g the button completely, the butt on becomes fully unlocked.
How to unlo ck the scr ew lock ty pe button How to lock th e screw lock t ype but ton
Turn the button ring counterclockwise (downward) to lower the slide cover gradually.
Turn the button r in g furt her u ntil you c an
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 clock wise (upward)
until it stops.
Now the screw lock type butt on is co mpletely locked.
Once you have nished operating the button, ma ke sure t hat you relock it.
Guide line
●Screw lock type button
Screw lock type button is locked.
Button ring Button ring
※Foreign particles a nd cont amination ca n cause operational failure of the screw and/or button(s).
Refer to "TO PRESERVE TH E QUALITY OF YOUR WATCH" on page 88.
Turn the button ring u ntil 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 ar m winds the mainspring
of the watch.
When first using a stopped watch, it is recommended that you ma nua lly 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 dev ice to preve nt over wi ndi ng of the m ain spr ing . Onc e the mai nsprin g is f ully
wound, th e mai nsp ring slip s ins ide, diseng agi ng the windin g mec han ism . Whe n this hap pen s, you can
still t urn the crown w ithout d amag ing t he watch, however, ple ase refrai n from exces sive operation of the
mains pring.
※ Under a low-temperatu re co ndition (below 0℃), always keep at least one-sixth of the watch power shown
by the power re serve in dicator.
●Guide for winding state of the mainspring
Self-winding:：
The mainspring of the watch is desig ned to b e fully wound when it is worn for twelve hours per day
for three to ve consecutive days.
Manua l winding:
Five fu ll rot ations of t he crown will provide the power to r un t he wat ch for approximately ten
hours .
Observe the power reserve indicator to check the level of the remai ning 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 reserve 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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