Seiko 7T92 Manuel utilisateur

English

Do not attempt to dive using this watch unless you have been properly

trained in diving. For your safety, please abide by the rules of diving.

Do not use the watch for saturation diving using helium gas.

Before diving, make sure that the watch operates normally.

WARNING

Please read and observe the instructions described in this booklet to ensure

the proper functioning of your diver's watch.

Do not operate the crown when the watch is wet or in water.

Do not operate the buttons when the watch is wet or in water.

Avoid hitting the watch against hard objects such as rocks.

CAUTION

ENGLISH

English

PRECAUTIONS ON USING THE WATCH FOR DIVING

Before diving, make sure that the watch operates normally and be sure to observe the

precautions described below.

BEFORE DIVING

Do not use the watch for saturation diving using helium gas.

To measure the elasped time while you are underwater, always use the rotating bezel.

Check that:

• the second hand is moving at one-second intervals.

• the “•” mark on the case back indicates the expected life limit of the battery. (See “BATTERY

CHANGE” on page 22.)

• the crown is locked tightly in place.

• the buttons are locked tightly in place.

• there are no visible cracks in the crystal or the watch band.

• the strap or bracelet is securely fastened to the watch case.

• the buckle keeps the strap or bracelet firmly secured to the wrist.

• the rotating bezel turns counterclockwise smoothly (the rotation must not be too loose or too tight)

and the “ ” mark aligns with the minute hand.

• the time and calendar are appropriately set.

If there are any malfunctions, we recommend that you contact an AUTHORIZED SEIKO SERVICE

CENTER.

WHILE DIVING

Do not operate the crown and the buttons when the watch is wet or in water.

Take care not to hit the watch against hard objects such as rocks.

Bezel rotation may become slightly stiffer underwater. This is not a malfunction.

AFTER DIVING

Rinse the watch in fresh water after diving and wash out all seawater, soil, sand, etc.

Wipe the watch thoroughly dry to prevent possible rust on the case after cleaning the watch in fresh water.

WARNING

CAUTION

WARNING notes indicate any condition or practice which, if not strictly observed,

could result in severe personal injury or possible death.

CAUTION notes indicate any condition or practice which, if not strictly observed,

may result in personal injury or property damage.

English

CAL. 7T92

a b c

CROWN

Hour hand

Minute hand

STOPWATCH 1/20-second hand

TIME/CALENDAR

STOPWATCH

Measures up to 12 hours in 1/20 second increments.

Split time measurement is possible.

Small second hand

Date

a: Normal position

b: First click

c: Second click

STOPWATCH hour hand STOPWATCH second hand

STOPWATCH minute hand

CONTENTS

Page

SETTING THE TIME AND ADJUSTING THE STOPWATCH HAND POSITION ........ 8

SETTING THE DATE ................................................................................................ 11

STOPWATCH ........................................................................................................... 12

TACHYMETER ......................................................................................................... 15

TELEMETER ............................................................................................................ 17

ROTATING BEZEL ................................................................................................... 19

SCREW DOWN CROWN ......................................................................................... 20

SECURITY LOCK BUTTON OPERATION ................................................................. 21

BATTERY CHANGE .................................................................................................. 22

TO PRESERVE THE QUALITY OF YOUR WATCH ................................................... 24

SPECIFICATIONS ..................................................................................................... 27

For the care of your watch, see “TO PRESERVE THE QUALITY OF YOUR

WATCH” in the attached Worldwide Guarantee and Instruction Booklet.

English

1. When the stopwatch is measuring or has been measuring and is now stopped, pulling the crown out

to the second click will automatically reset the stopwatch hands to “0”.

2. If is recommended that the hands be set to the time a few minutes ahead of the current time, taking

into consideration the time required to adjust the STOPWATCH hand position if necessary.

3. When setting the hour hand, be sure to check that AM/PM is correctly set. The watch is so designed

that the date changes once in 24 hours.

4. When setting the minute hand, first advance it 4 to 5 minutes ahead of the desired time and then turn

it back to the exact minute.

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.

STOPWATCH second hand

STOPWATCH hour hand

STOPWATCH 1/20-second hand

STOPWATCH minute hand

SETTING THE TIME AND

ADJUSTING THE STOPWATCH HAND POSITION

Minute hand

Hour hand

CROWN Pull out to second click when the second hand is at the 12 o’clock position.

CROWN Turn to set the hour and

minute hands.

Small

second

hand

1. TIME SETTING

This watch is so designed that the following are all 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 check and adjust the time. If

needed, the position of the stopwatch hands should also be adjusted then.

English

Before setting the date, be sure to set the main time.

CROWN

Date

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.

SETTING THE DATE

Press for 2 seconds to select the stopwatch hand(s) to be adjusted.

STOPWATCH

second hand

CROWN

Selection of the hand(s) can be made in the following order by

pressing button for 2 seconds.

STOPWATCH

1/20-second hand

STOPWATCH

hour and minute

hands

* The selected hand(s) turn(s) a full circule.

Press repeatedly to set the selected stopwatch hand(s) to the “0” position.

* The hand(s) move(s) quickly if button B is kept pressed.

* After all the adjustments are completed, check that the hour and minute hands for time

display indicate the current time.

Push back into normal position in accordance with a time signal.

Unscrew the crown and pull out to first

click position.

Turn clockwise until the desired date

appears.

Screw the crown all the way in until it is

locked.

English

Accumulated elapsed time measurement

START

STOP RESTART

STOP RESET

○○○○

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

Standard measurement

A A B

START STOP RESET

After the stopwatch is restarted or split time is released, the stopwatch 1/20-second

hand moves for about 10 minutes and stops automatically.

In the same manner, if the stopwatch is stopped and restarted repeatedly or split time

is measured and released repeatedly, the stopwatch 1/20-second hand moves for

about 10 minutes and stops automatically.

Before using the stopwatch, be sure to check that the crown is set at the normal position and

that the stopwatch hands are reset to the “0” position.

* If the stopwatch hands do not return to the “0” position when the stopwatch is reset to “0”, follow the

procedure in “SETTING THE TIME AND ADJUSTING THE STOPWATCH HAND POSITION”.

STOPWATCH

The stopwatch can measure up to 12 hours in 1/20-second increments.

When the measurement reaches 12 hours, the stopwatch automatically stops counting.

STOPWATCH second hand

STOPWATCH minute hand

[ Ex.: 2 hours, 30 minutes and 10.85 seconds ]

Movement of the stopwatch 1/20-second hand

After the stopwatch is started, the stopwatch 1/20-second hand moves for about 10

minutes and automatically stops at the “0” position.

When the measurement is stopped or split time is measured, it moves to indicate the

elapsed 1/20 seconds.

STOPWATCH 1/20-second hand

STOPWATCH hour hand

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

the 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 the 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

Split time measurement

START SPLIT

STOP RESET

○○○○

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

SPLIT

RELEASE

Measurement of two competitors

START

RESET

FINISH TIME

OF 1ST

COMPETITOR

2ND

COMPETITOR

FINISHES

FINISH TIME

OF 2ND

COMPETITOR

English

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

C(68

F).

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.

To measure the hourly rate of operation

Use the stopwatch to measure

the time required to complete 1

job.

Tachymeter scale indicated by

the 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

English

HOW TO USE THE TELEMETER

Before beginning, check that the stopwatch has been reset.

START

(Flash of light)

STOP

(Crash of thunder)

Press button A to start the

stopwatch as soon as you

see the light.

When you hear the sound,

press button A to stop the

stopwatch.

Read the telemeter scale

that the stopwatch second

hand points to.

Approx. 3 km

Please note that the stopwatch second hand moves in 1 second increments and does not always

point exactly to the graduations of the telemeter scale. The telemeter scale can be used only

when the measured time is less than 60 seconds.

ROTATING BEZEL

The rotating bezel can show the elapsed time up to 60 minutes. By setting it before

diving, you can know how many minutes you are underwater.

Start(10:10 AM)

“ ”

mark

30 minutes have elapsed.

"30" on rotating bezel

1. Turn the rotating bezel to align its “ ” mark with the minute hand.

* The rotating bezel rotates with clicks. With each click, it turns half a minute.

2. To know the elapsed time, read the number on the rotating bezel that the minute

hand points to.

To prevent accidental rotation, the rotating bezel is so designed that rotation

becomes harder in water. Also for safty's sake, it roatates only counterclockwise,

so that the time measured is never shorter than the actual elapsed time.

Minute hand

Example:

Bezel rotation may become slightly stiffer underwater. This is not a malfunction.

English

SECURITY LOCK BUTTON OPERATION

Locking the push-buttons

- Turn Security Lock Buttons clockwise until you no longer feel the threads turning.

- The buttons cannot be pushed in.

Unlocking the push-buttons

- Turn Security Lock Buttons counterclockwise until you no longer feel the threads turning.

- The buttons can be pushed in.

Locking

Unlocking

Locking

SECURITY LOCK OF PUSH-BUTTONS A & B

Unlocking

1. Before diving, make sure that both buttons are locked tightly in place.

2. Do not operate the buttons when the watch is wet or in water.

SCREW DOWN CROWN

• Your watch has 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.

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.

1. Before diving, make sure that the crown is locked tightly in place.

2. Do not operate the crown when the watch is wet or in water.

3. When screwing the crown in, ensure that the crown is correctly aligned and turn it gently.

If it is 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.

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