Seiko 7T82 User manual

You are now the proud owner of a SEIKO 1/100-Second Retrograde
Chronograph Cal. 7T82. For best results, please read the instructions in this
booklet carefully before using your SEIKO Analogue Quartz Watch. Please
keep this manual handy for ready reference.
Es usted ahora el orgulloso propietario del Cronógrafo Retrógrado de 1/100
de Segundo de SEIKO, Cal. 7T82. Para óptimo resultado, lea detenidamente
las instrucciones de este folleto antes de usar el reloj. Guarde este manual
para consulta posterior.

3
English
ENGLISH
CONTENTS
Page
FEATURES ............................................................................................................... 4
SCREW DOWN CROWN ......................................................................................... 6
TIME AND CALENDAR SETTING AND
STOPWATCH HAND POSITION ADJUSTMENT ..................................................... 7
HOW TO USE THE STOPWATCH ........................................................................... 12
DEMONSTRATION FUNCTION OF THE STOPWACH HAND MOVEMENT ........... 16
TACHYMETER (for models with tachymeter scale on the dial) ............................... 17
TELEMETER (for models with telemeter scale on the dial) ..................................... 19
BATTERY CHANGE .................................................................................................. 21
NECESSARY PROCEDURE AFTER BATTERY CHANGE ......................................... 23
TROUBLESHOOTING .............................................................................................. 24
SPECIFICATIONS ..................................................................................................... 26
✩
For the care of your watch, see “TO PRESERVE THE QUALITY OF YOUR
WATCH” in the attached Worldwide Guarantee and Instruction Booklet.

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4
English
English
a b c
Hour hand
Minute hand
STOPWATCH second hand
STOPWATCH minute hand
Small second hand
Date
a: Normal position:
b: First click:
Date setting
c: Second click:
Time setting,
Hand position adjustment
STOPWATCH 1/100-second hand
STOPWATCH 1/10-second hand
• If your watch has a screw down crown, refer to "SCREW DOWN CROWN" section
on the next page.
• Simplified illustrations are used in the following sections of this manual.
CAL. 7T82
■TIME/CALENDAR
Hour, minute and small second hands
■STOPWATCH
• 40-minute measurement in 1/100-second increments, consecutively meas-
urable up to 120 minutes
• 4 STOPWATCH hands
1/100-second, 1/10-second, second and minute hands
• Split time measurement on demand
• 1/100-second high-speed movement
The STOPWATCH 1/100-second hand makes 10 full circles in one sec-
ond.
• 40-minute dial with a retrograde minute hand
When the minute counting reaches 40 minutes, the STOPWATCH minute
hand immediately returns and continues counting from 41 minutes
onward. The minute counting is repeated in the same manner for
another rotation, up to 120 minutes, at that time the stopwatch automati-
cally stops counting.
FEATURES
1/100 SEC.
1/100 SEC.
012
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4
5
6
7
89
60
60
15
15
30
30
45
45
0
10
10
20
20
30
30
40
40
MIN.
MIN.
A
B
CROWN

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4
English
English
a b c
Hour hand
Minute hand
STOPWATCH second hand
STOPWATCH minute hand
Small second hand
Date
a: Normal position:
b: First click:
Date setting
c: Second click:
Time setting,
Hand position adjustment
STOPWATCH 1/100-second hand
STOPWATCH 1/10-second hand
• If your watch has a screw down crown, refer to "SCREW DOWN CROWN" section
on the next page.
• Simplified illustrations are used in the following sections of this manual.
CAL. 7T82
■TIME/CALENDAR
Hour, minute and small second hands
■STOPWATCH
• 40-minute measurement in 1/100-second increments, consecutively meas-
urable up to 120 minutes
• 4 STOPWATCH hands
1/100-second, 1/10-second, second and minute hands
• Split time measurement on demand
• 1/100-second high-speed movement
The STOPWATCH 1/100-second hand makes 10 full circles in one sec-
ond.
• 40-minute dial with a retrograde minute hand
When the minute counting reaches 40 minutes, the STOPWATCH minute
hand immediately returns and continues counting from 41 minutes
onward. The minute counting is repeated in the same manner for
another rotation, up to 120 minutes, at that time the stopwatch automati-
cally stops counting.
FEATURES
1/100 SEC.
1/100 SEC.
012
3
4
5
6
7
89
60
60
15
15
30
30
45
45
0
10
10
20
20
30
30
40
40
MIN.
MIN.
A
B
CROWN

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English
TIME AND CALENDAR SETTING AND
STOPWATCH HAND POSITION ADJUSTMENT
STOPWATCH second hand
STOPWATCH minute hand
STOPWATCH 1/100-second hand
STOPWATCH 1/10-second hand
Hour hand
●This watch is designed so that the following adjustments are made with the crown
at the second click position:
1) time setting
2) stopwatch hand position adjustment
Once the crown is pulled out to the second click, be sure to make both the above
adjustments 1) and 2) at the same time.
Small second hand
Minute hand
●The date adjustment is done with the crown at first click position.
SCREW DOWN CROWN
• Some models have a screw down crown to prevent accidental operation and help
maintain water-resistant quality.
• To use the crown, it is necessary to unlock the crown first before pulling it out, and
it is important to securely screw the crown in after each use.
HOW TO OPERATE THE SCREW DOWN CROWN
The crown must be securely locked in the case except when you use it to set the
watch.
* When screwing the crown in, ensure that the crown is correctly aligned and turn it
gently. If it is too hard to turn, unscrew it first, and then rewind it. Do not screw it
in by force as it may damage the thread of the screw or the case.
<How to unlock the crown>
Turn the crown counterclockwise to unscrew it.
The crown is released and projected outward
from its original position.
<How to lock the crown>
Turn the crown clockwise while pressing it to the
case until it is screwed all the way in and locked.
The crown is locked.
The crown is unlocked
and can be pulled out.
CROWN
1/100 SEC.
1/100 SEC.
012
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4
5
6
7
89
60
60
15
15
30
30
45
45
0
10
10
20
20
30
30
40
40
MIN.
MIN.

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English
English
TIME AND CALENDAR SETTING AND
STOPWATCH HAND POSITION ADJUSTMENT
STOPWATCH second hand
STOPWATCH minute hand
STOPWATCH 1/100-second hand
STOPWATCH 1/10-second hand
Hour hand
●This watch is designed so that the following adjustments are made with the crown
at the second click position:
1) time setting
2) stopwatch hand position adjustment
Once the crown is pulled out to the second click, be sure to make both the above
adjustments 1) and 2) at the same time.
Small second hand
Minute hand
●The date adjustment is done with the crown at first click position.
SCREW DOWN CROWN
• Some models have a screw down crown to prevent accidental operation and help
maintain water-resistant quality.
• To use the crown, it is necessary to unlock the crown first before pulling it out, and
it is important to securely screw the crown in after each use.
HOW TO OPERATE THE SCREW DOWN CROWN
The crown must be securely locked in the case except when you use it to set the
watch.
* When screwing the crown in, ensure that the crown is correctly aligned and turn it
gently. If it is too hard to turn, unscrew it first, and then rewind it. Do not screw it
in by force as it may damage the thread of the screw or the case.
<How to unlock the crown>
Turn the crown counterclockwise to unscrew it.
The crown is released and projected outward
from its original position.
<How to lock the crown>
Turn the crown clockwise while pressing it to the
case until it is screwed all the way in and locked.
The crown is locked.
The crown is unlocked
and can be pulled out.
CROWN
1/100 SEC.
1/100 SEC.
012
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4
5
6
7
89
60
60
15
15
30
30
45
45
0
10
10
20
20
30
30
40
40
MIN.
MIN.

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English
* It is recommended that the minute hand
be set 4 to 5 minutes ahead of the time,
and then turn it back to the exact minute.
CROWN Turn clockwise to advance hour and
minute hands past 12:00 AM. Doing so
will advance the date to the current
date.
CROWN Set the hour and minute hands to the
desired time taking AM and PM into
consideration.
1. It is necessary to adjust the date at the end of February and 30-day months.
2. Do not set the date between 9:00 p.m. and 1:00 a.m. Otherwise, the date may not
change properly.
60
60
15
15
30
30
45
45
Current date
1) TIME AND CALENDAR SETTING
CROWN Pull out to first click.
CROWN Turn clockwise until the previous day's
date appears.
Small second hand
60
60
15
15
30
30
45
45
Pull out to second click when the small
second hand is at the 12 o’clock posi-
tion. The small second hand will stop
on the spot.
CROWN
* If the crown is pulled out when the
stopwatch is measuring, the stopwatch
will be automatically reset.
Previous day's date
Minute hand
Hour hand

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English
English
* It is recommended that the minute hand
be set 4 to 5 minutes ahead of the time,
and then turn it back to the exact minute.
CROWN Turn clockwise to advance hour and
minute hands past 12:00 AM. Doing so
will advance the date to the current
date.
CROWN Set the hour and minute hands to the
desired time taking AM and PM into
consideration.
1. It is necessary to adjust the date at the end of February and 30-day months.
2. Do not set the date between 9:00 p.m. and 1:00 a.m. Otherwise, the date may not
change properly.
60
60
15
15
30
30
45
45
Current date
1) TIME AND CALENDAR SETTING
CROWN Pull out to first click.
CROWN Turn clockwise until the previous day's
date appears.
Small second hand
60
60
15
15
30
30
45
45
Pull out to second click when the small
second hand is at the 12 o’clock posi-
tion. The small second hand will stop
on the spot.
CROWN
* If the crown is pulled out when the
stopwatch is measuring, the stopwatch
will be automatically reset.
Previous day's date
Minute hand
Hour hand

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English
English
●If Button is pressed again for 2 seconds, you can go back to the
adjustment of 1/10- and 1/100-second hands and so on in the following
order.
APress for 2 seconds.
* STOPWATCH minute hand turns a full
circle.
Press repeatedly to set it to the “0”
position.
* The hand moves quickly if Button B is
kept pressed.
* STOPWATCH minute hand turns a full
circle passing the 40-minute marker
only during the STOPWATCH hand
position adjustment.
0
10
10
20
20
30
30
40
40
MIN.
MIN.
After all the adjustments are completed,
push back in to the normal position in
accordance with a time signal.
CROWN
B
A
B
A
STOPWATCH
second hand
STOPWATCH
minute hand
STOPWATCH
1/10- and 1/100-second
hands
2) STOPWATCH HAND POSITION ADJUSTMENT
✩If the STOPWATCH hands are not in the “0” position, follow the procedure below to set them
to the “0” position.
B
APress for 2 seconds.
* STOPWATCH 1/10-second and 1/100-
second hands turn a full circle.
Press repeatedly to set the STOPWATCH
hands to the “0” position.
* The hands move quickly if Button B is
kept pressed.
012
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5
6
7
89
BPress repeatedly to set it to the “0”
position.
* The hand moves quickly if Button B is
kept pressed.
* STOPWATCH second hand turns a full
circle.
Press for 2 seconds.
A
B
A
A
B

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English
●If Button is pressed again for 2 seconds, you can go back to the
adjustment of 1/10- and 1/100-second hands and so on in the following
order.
APress for 2 seconds.
* STOPWATCH minute hand turns a full
circle.
Press repeatedly to set it to the “0”
position.
* The hand moves quickly if Button B is
kept pressed.
* STOPWATCH minute hand turns a full
circle passing the 40-minute marker
only during the STOPWATCH hand
position adjustment.
0
10
10
20
20
30
30
40
40
MIN.
MIN.
After all the adjustments are completed,
push back in to the normal position in
accordance with a time signal.
CROWN
B
A
B
A
STOPWATCH
second hand
STOPWATCH
minute hand
STOPWATCH
1/10- and 1/100-second
hands
2) STOPWATCH HAND POSITION ADJUSTMENT
✩If the STOPWATCH hands are not in the “0” position, follow the procedure below to set them
to the “0” position.
B
APress for 2 seconds.
* STOPWATCH 1/10-second and 1/100-
second hands turn a full circle.
Press repeatedly to set the STOPWATCH
hands to the “0” position.
* The hands move quickly if Button B is
kept pressed.
012
3
4
5
6
7
89
BPress repeatedly to set it to the “0”
position.
* The hand moves quickly if Button B is
kept pressed.
* STOPWATCH second hand turns a full
circle.
Press for 2 seconds.
A
B
A
A
B