Seiko 7T82 Manuel utilisateur

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.

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.

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.

012

MIN.

CROWN

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.

Turn the crown counterclockwise to unscrew it.

The crown is released and projected outward

from its original position.

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.

012

MIN.

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.

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

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

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.

MIN.

After all the adjustments are completed,

push back in to the normal position in

accordance with a time signal.

CROWN

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.

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

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.

English

012

• Reading the 1/100-second and 1/10-second hands requires extra attention.

• 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 automatically stops.

• The final position of the STOPWATCH minute hand, after completing 120 minutes

of counting, is illustrated below.

* The display illustrated at the left should be read as

“19,” not "29." When the 1/100-second hand is

moving toward larger numbers, the 1/10 second

hand comes close to the next marker, which may

cause you to wrongly read the hands as "29."

• Before starting to use the stopwatch again, make sure to reset the stopwatch by

pressing Button B.

HOW TO USE THE STOPWATCH

●The stopwatch features a 40-minute dial with a retrograde minute hand.

●The stopwatch can consecutively measure up to 120 minutes in 1/100-second

increments. When the measurement reaches 120 minutes, the stopwatch auto-

matically stops counting.

●Split time measurement is possible.

●After 3 minutes of timing from a start, the STOPWATCH 1/100-second and 1/10-

second hands remain pointing to the “0” position until the watch is stopped or

split time measurement is made, at such a time, they move to display the

measured time. They start to move for a maximum of three minutes after the

watch is restarted or the split time display is released.

012

The time measured is indicated by the four stopwatch hands below.

STOPWATCH second hand

STOPWATCH minute hand

STOPWATCH 1/100-second hand STOPWATCH 1/10-second hand

English

* Measurement and release of split time can be repeated by pressing Button B.

* If the time measured reaches 120 minutes while the split time is being

displayed, the stopwatch automatically stops counting and releases the split

time display, showing “40' 00" 00.” Before starting the next measurement,

make sure to reset the stopwatch by pressing Button B.

Accumulated elapsed time measurement

START

STOP RESTART

▼

STOP RESET

▼

○○○○

▼

* Restart and stop of the stopwatch can be repeated by pressing Button A.

Split time measurement

START SPLIT

▼

STOP RESET

▼

○○○○

▼

SPLIT

RELEASE

Measurement of two competitors

START

▼

RESET

▼

FINISH TIME

OF 1ST

COMPETITOR

2ND COMPETITOR

FINISHES

FINISH TIME

OF 2ND

COMPETITOR

While the STOPWATCH hands are moving

1. Press Button A to stop the stopwatch.

2. Press Button B to reset the stopwatch.

While the STOPWATCH hands are stopped

(When the stopwatch is stopped)

1. Press Button B to reset the stopwatch.

(When the split time measurement is displayed while the stopwatch is measuring.)

1. Press Button B to release the split time display and return to the normal display

2. Press Button A to stop the stopwatch

3. Press Button B to reset the stopwatch

(When the split time measurement is displayed and the stopwatch is stopped.)

1. Press Button B to release the split time display.

2. Press Button B to reset the stopwatch.

Standard measurement

A A B

▼

START STOP RESET

English

TACHYMETER

(for models with tachymeter scale on the dial)

●Tachymeter scale can be used only when the time required is less than 60

seconds.

To measure the hourly average speed of a vehicle

Use the stopwatch to determine

how many seconds it takes to go

1 km or 1 mile.

Tachymeter scale indicated by

STOPWATCH second hand gives

the average speed per hour.

Ex. 1

STOPWATCH

second hand:

40 seconds

Tachymeter scale:

“90”

“90” (tachymeter scale figure) x 1 (km or mile)

= 90 km/h or mph

Ex. 2: If the measuring distance is extended to 2 km or miles or shortened to

0.5 km or miles and STOPWATCH second hand indicates “90” on

tachymeter scale:

“90” (tachymeter scale figure) x 2 (km or mile) = 180 km/h or mph

“90” (tachymeter scale figure) x 0.5 (km or mile) = 45 km/h or mph

DEMONSTRATION FUNCTON OF THE STOP-

WATCH HAND MOVEMENT

• The demonstration function allows you to view the movement of the four

STOPWATCH hands.

• Each of the four STOPWATCH hands demonstrates high-speed movements and

when the demonstration is finished, they return to the original position.

* After approximately 3 seconds, the demonstration finishes, and the stopwatch is

reset for the next use.

* If either Button A or B is pressed during a demonstration, the demonstration will be

stopped and the stopwatch will be reset.

012

●How to view the demonstration

1. Reset the stopwatch.

* Refer to "HOW TO USE THE STOPWATCH"

section of this manual.

2. Press Button B for 2 seconds or longer.

English

CAUTION

The telemeter provides only a rough indication of the distance to the place where

lightning struck, and therefore, the indication cannot be used as the guideline to avoid

the danger of lightning. It should also be noted that the speed of the sound differs

depending on the temperature of the atmosphere where it travels.

TELEMETER

(for models with telemeter scale on the dial)

●The telemeter can provide a rough indication of the distance to the source of light

and sound.

●The telemeter indicates the distance from your location to an object that emits

both light and sound. For example, it can indicate the distance to the place where

lightning struck by measuring the time elapsed after you see a flash of lightning

until you hear the sound.

●A flash of lightning reaches you almost immediately while the sound travels to

you at a speed of 0.33 km/second. The distance to the source of the light and

sound can be calculated on the basis of this difference.

●The telemeter scale is so graduated that the sound travels at a speed of 1 km in

3 seconds.*

* Under the condition of temperature of 20 ºC (68 ºF).

To measure the hourly rate of operation

Use the stopwatch to measure

the time required to complete 1

job.

Tachymeter scale indicated by

STOPWATCH second hand gives

the average number of jobs ac-

complished per hour.

Ex. 1

STOPWATCH

second hand:

20 seconds

Tachymeter scale:

“180”

“180” (tachymeter scale figure) x 1 job

= 180 jobs/hour

Ex. 2: If 15 jobs are completed in 20 seconds:

“180” (tachymeter scale figure) x 15 jobs = 2700 jobs/hour

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