Cal. 7C46, 7N36, 7N85, V736
INSTRUCTIONS
BEDIENUNGSANLEITUNG
INSTRUCTIONS
ISTRUZIONI
(P.
3)
(S. 18)
(P. 33)
(P. 48)
(P. 63)
(P. 78)
(93 頁)
INSTRUCCIONES
INSTRUÇÕES
用法説明
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CONTENTS
Page
FEATURES ..................................................................................................................
TIME SETTING ............................................................................................................
CALENDAR SETTING .................................................................................................
CROWN LOCK ............................................................................................................
HOW TO USE THE ROTATING BEZEL .......................................................................
BATTERY LIFE INDICATOR ........................................................................................
BATTERY CHANGE .....................................................................................................
PRECAUTIONS ...........................................................................................................
TO PRESERVE THE QUALITY OF YOUR WATCH......................................................
SPECIFICATIONS........................................................................................................
4
6
8
9
9
10
10
12
15
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3
SEIKO QUARTZ DIVER’S WATCH
Cal. 7C46, 7N36, 7N85, V736
FEATURES
The SEIKO Quartz Diver’s Watches are specially designed for deep-sea diving.
I WATER RESISTANCE
The watches have been water-tested to 25, 75 or 125 atmospheres of pressure/bar as shown
in the table below.
Description
on the dial
Water-tested to:
(atmosphere of pressure/bar)
Helium Gas
resistance
Calibre No.
7N36, 7N85, V736
DIVER’S 200 m
DIVER’S 600 m
DIVER’S 1,000 m
25
75
NO
YES
YES
7C46
125
I HELIUM GAS RESISTANCE
In addition to its excellent water resistant quality, Cal. 7C46 watch is designed for use in
saturation diving using helium gas.
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4
I TITANIUM AND CERAMIC CASE (Cal. 7C46 1,000 m model)
A one-piece case consisting of a titanium inner part and a fine ceramic outer part makes the
DIVER’S 1,000 m watch light and durable.
I ROTATING BEZEL
The rotating bezel can be rotated counterclockwise. Each click rotates one half minute or one
minute depending on the model.
*
To prevent accidental rotation, the rotating bezel is so designed that the rotation becomes harder in
water. Also for safety’s sake, the rotating bezel rotates only counterclockwise, and thus the time
measured is never shorter than the actual elapsed time.
I BATTERY LIFE INDICATOR
When the battery life nears its end, the second hand starts moving at two-second intervals
instead of the normal one-second intervals. The watch, however, remains accurate during this
period.
Check the calibre number on the case back as shown below.
Calibre No.
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5
TIME SETTING
1
2
3
Unscrew the crown by Pull out the crown all the Adjust the time by turning
turning it counterclockwise. way to the second click the crown in the desired
when the second hand is at direction.
the 12 o’clock position.
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4
Notes:
1. Turn the hands past the 12 o’clock marker to determine
whether the watch is set for the AM or PM period. If the
calendar changes when the hour hand passes the 12
o’clock marker, the time is set for AM. If the calendar does
not change, the time is set for PM.
2. To set the minute hand, advance it a few minutes ahead of
the desired time and then turn it back to the exact minute.
To set the exact time, push
the crown back in to the
normal position in accord-
ance with a time signal for
“00” seconds.
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7
CALENDAR SETTING
Pull out the crown to the first click.
Cal. 7C46:
Cal. 7N85:
Turn the crown
clockwise to set the
date and counter-
Turn the crown
clockwise to set
the date.
Date
Date
clockwise to set the
day of the week in
the desired
Day
language.
Cal. 7N36, V736:
Turn the crown
Notes:
1. Do not change the day or the date during the
time period below:
counterclockwise to
set the date and
Day
•
•
Cal. 7N85 : 9:00 P.M. ~ 1:00 A.M.
Cal. 7C46, 7N36, V736 : 9:00 P.M. ~ 4:00
A.M.
clockwise to set the
day of the week in
the desired
2. When the day shifts automatically to the next
day, the other language will appear temporarily.
Date
language.
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8
CROWN LOCK
Push the crown back in to the normal position. While
pressing the crown, turn it clockwise until it locks in place.
Turn
Press
HOW TO USE THE ROTATING BEZEL
I You can measure the elapsed time up to 60 minutes.
1. Turn the rotating bezel to align the “III”
mark to the minute hand.
2. When time has elapsed, read the number
on the rotating bezel.
Example: Starting time
Finishing time : 10:40
Elapsed time 30 minutes
:
10:10
:
Elapsed time
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9
BATTERY LIFE INDICATOR
I The second hand moves at two-second intervals when the battery needs replacement.
I “I” mark inscribed on the case back shows the expected time for battery replacement.
BATTERY CHANGE
I Be sure to replace the battery as soon as it runs down, and not to leave a discharged battery
inside the watch.
I The battery needs to be replaced when you see the second hand moving at two-second
intervals instead of the normal one-second intervals.
*
The watch will, however, remain accurate while the second hand is moving at two-second intervals.
I To show when the battery must be replaced, the expected time (month and year) for the first
battery replacement is inscribed on the case back as shown in the illustration below.
“•” mark showing the expected time for battery replacement.
Year (2000)
Each graduation of the scale represents three months.
Note: The form of inscription on the case back specifying expected
time of battery replacement may differ from model to model.
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I When replacing the battery, we recommend that you contact an AUTHORIZED SEIKO
SERVICE CENTER. In that case, after every battery change, a new “I” mark will be inscribed
on the case back at the position corresponding to the next battery replacement time. Be sure
to check the mark before using your watch again.
I Refer to the table below for the proper battery and battery life corresponding to your watch.
Battery life
(Approx. years)
Calibre No.
Battery
7C46
7N36, V736
7N85
SEIKO SR43SW
SEIKO SR920SW
SEIKO SR621SW
5
4
2
Note: Since the battery in your watch was inserted at the factory, its actual life, once in your possession,
may be less than the specified period.
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11
PRECAUTIONS
Before diving, make sure that the watch operates normally and be sure to observe the
precautions described below.
Do not attempt to dive using the watch unless you have been properly trained in diving.
Abide by the rules of diving for safety’s sake.
BEFORE DIVING
I Do not use the watch for saturation diving using helium gas (except for Cal. 7C46).
I Check that:
• the watch operates normally.
• the crown is 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 “ I ” 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
I Do not operate the crown when the watch is wet or in water.
I Take care not to hit the watch against hard objects such as rocks.
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I Bezel rotation may become slightly harder in the water but this is not a malfunction.
AFTER DIVING
I After checking that the crown is screwed in completely, rinse the watch in fresh water, and wash out all
seawater, soil, sand, etc.
I After cleaning the watch in fresh water, be sure to wipe it thoroughly dry to prevent possible rust on the
case.
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13
LUMIBRITETM
LumiBrite is a luminous paint that is completely harmless to human beings and the natural
environment, containing no noxious materials such as radioactive substances.
LumiBrite is a newly-developed luminous paint that absorbs the light energy of sunlight or artificial
light in a short time and stores it to emit light in the dark.
For example, if exposed to a light of more than 500 lux for approximately 10 minutes, LumiBrite
can emit light for 5 to 8 hours.
Please note, however, that, as LumiBrite emits the light it stores, the luminance level of the light
decreases gradually over time. The duration of the emitted light may also differ slightly depending
on such factors as the brightness of the place where the watch is exposed to light and the distance
from the light source to the watch.
When you make a dive in dark water, LumiBrite may not emit light unless it has absorbed and
stored light sufficiently.
Before diving, therefore, be sure to expose the watch to light under the conditions specified
above, so that it fully absorbs and stores light energy. Otherwise, use the watch together with an
underwater flashlight.
< Reference data on luminance >
(A) Sunlight
[Fine weather]: 100,000 lux
[Cloudy weather]: 10,000 lux
(B) Indoor (Window side during daytime)
[Fine weather]: more than 3,000 lux
[Rainy weather]: less than 1,000 lux
[Cloudy weather]: 1,000 to 3,000 lux
(C) Lighting apparatus (40-watt daylight fluorescent light)
[Distance to the watch: 1 m]: 1,000 lux
[Distance to the watch: 3 m]: 500 lux (average room luminance)
[Distance to the watch: 4 m]: 250 lux
* “LUMIBRITE” is a trademark of SEIKO CORPORATION.
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TO PRESERVE THE QUALITY OF YOUR WATCH
I Repair of diver’s watches requires special expertise and equipment. If you find that your diver’s
watch is malfunctioning, therefore, never attempt to repair it but immediately send it to a nearby
SEIKO Service Center.
I TEMPERATURES
Your watch works with stable accuracy within a temperature range of 5° C and
+60°C
35° C (41° F and 95° F). Temperatures over 60° C (140° F) may cause battery
leakage or shorten the battery life. Do not leave your watch in very low
-10°C
temperatures below –10° C (+14° F) for a long time since the cold may cause a
slight time loss or gain. However, the above conditions will be corrected when
the watch returns to normal temperature.
I PERIODIC CHECK
I CHEMICALS
I MAGNETISM
2 - 3
Years
N
S
Be careful not to expose the It is recommended that the watch
watch to solvents, mercury, be checked once every 2 to 3 years
cosmetic spray, detergents, by an AUTHORIZED SEIKO
adhesives or paints. Otherwise, DEALER or SERVICE CENTER to
the case, bracelet, etc. may ensure that the case, crown, gasket
Your watch will be
adversely affected by
strong magnetism.
Keep it away from
close contact with
magnetic objects.
b e c o m e
d i s c o l o r e d , and crystal seal remain intact.
deteriorated or damaged.
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I CARE OF CASE AND
BRACELET
I
PRECAUTION REGARDING
CASE BACK PROTECTIVE FILM
I SHOCKS &
VIBRATION
To prevent possible rusting Be careful not to drop If your watch has a protective film
of the case and bracelet, wipe your watch or hit it and/or a sticker on the case back,
them periodically with a soft against hard surfaces.
dry cloth.
peel them off before using your
watch.
SPECIFICATIONS
1. Frequency of crystal oscillator ........... 32,768 Hz (Hz = Hertz … Cycles per second)
2. Loss/gain (monthly rate) ..................... Cal. 7C46, 7N36, 7N85: Less than 15 seconds at normal
temperature range (5° C ~ 35° C) (41° F ~ 95° F)
Cal. V736: Less than 20 seconds at normal temperature
range (5° C ~ 35° C) (41° F ~ 95° F)
3. Operational temperature range .......... Cal. 7C46, 7N36, 7N85: –10° C ~ +60° C (14° F ~ 140° F)
Cal. V736: –5° C ~ +50° C (23° F ~ 122° F)
4. Driving system ................................... Step motor, 1 piece
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5. Display system
Time .............................................. Three hands (Hour, minute and second hands)
Day ................................................ Displayed in numerals (Cal. 7C46, 7N36, V736)
Date .............................................. Displayed in numerals
6. Battery ............................................... (See “BATTERY CHANGE” on page 11)
7. IC (Integrated Circuit) ......................... C-MOS-IC
* The specifications are subject to change without prior notice for product improvement.
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