Seiko 7S26 User manual

Cal. 7S26, 7S35&7S36
INSTRUCTIONS (P. 3)
BEDIENUNGSANLEITUNG (S. 14)
INSTRUCTIONS (P. 25)
ISTRUZIONI (P. 36)
INSTRUCCIONES (P. 47)
INSTRUÇÕES (P. 58)
用法説明 (69 頁)

English
2
You are now the proud owner of a SEIKO Automatic Diver’s Watch Cal. 7S26/7S35/7S36. For best
results, please read the instructions in this booklet carefully before using your SEIKO Automatic
Diver’s Watch. Please keep this manual handy for ready reference.
Sie sind jetzt stolzer Besitzer einer automatischen Taucheruhr SEIKO Kal. 7S26/7S35/7S36. Bitte lesen Sie
diese Bedienungsanleitung vor der Verwendung der Uhr aufmerksam durch, um optimale Ergebnisse davon zu
erhalten. Heben Sie die Bedienungsanleitung gut auf, um jederzeit nachlesen zu können.
Vous voici l’heureux propriétaire d’une montre automatique de plongée SEIKO Cal. 7S26/7S35/7S36.
Pour en obtenir de bonnes performances, veuillez, avant d’utiliser la montre, lire attentivement les
explications de ce mode d’emploi que vous conserverez pour toute référence ultérieure.
Grazie per aver acquistato questo orologio automatico SEIKO Cal. 7S26/7S35/7S36 per subacqueo. Per
ottenerne i migliori risultati leggere attentamente le istruzioni di questo libretto prima di passare all’uso
dell’orologio stesso. Tenere poi il manuale a portata di mano, per ogni eventuale futura, ulteriore
consultazione.
Usted es ahora un honrado poseedor del reloj de buceador automatico SEIKO Cal. 7S26/7S35/7S36.
Para obtener de él los mejores resultados, lea las instrucciones del presente folleto con cuidado antes
del uso de su reloj de buceador automatico SEIKO. Guarde este manual para fácil referencia.
Você pode sentir-se orgulhoso de possuir um Relógio do mergulhador SEIKO Automático Cal. 7S26/
7S35/7S36. Para obter dele os melhores resultados, leia atentamente as instruções contidas neste
opúsculo antes de usar o seu Relógio do mergulhador SEIKO Automático. Conserve este manual para
referências futuras.

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English
CONTENTS
Page
FEATURES ......................................................................................................................... 5
HOW TO START THE WATCH .......................................................................................... 5
TIME/CALENDAR SETTING ............................................................................................... 6
ROTATING BEZEL ............................................................................................................. 8
PRECAUTIONS .................................................................................................................. 9
NOTES FOR USING THE WATCH ..................................................................................... 10
ENGLISH
TO PRESERVE THE QUALITY OF YOUR WATCH ............................................................. 10
SPECIFICATIONS ............................................................................................................... 13

English
4
MON
15
SEIKO AUTOMATIC DIVER’S WATCH
Cal. 7S26, 7S35 & 7S36
a b c d
Hour hand
Rotating bezel
Second hand
Minute hand
Day and date
Crown
a: Screwed-in position b: Normal position c: First click d: Second click
15
a b c d
Crown
Date
Minute hand
Rotating bezel
Hour hand
Second hand
● 7S26/7S36 ● 7S35

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English
●Hour, minute & second hands
●Date
●Day
FEATURES
200 METER WATER RESISTANCE
●Suitable for scuba diving
ROTATING BEZEL
●Elapsed time measurement during
diving (up to 60 minutes)
SCREW DOWN CROWN
TIME/CALENDAR
●Hour, minute & second hands
●Date
7S35
HOW TO START THE WATCH
●To initially start your watch:
Swing it from side to side in a horizontal arc for about 30 seconds.
This is an automatic mechanical watch.
*If the watch is worn on the wrist, the mainspring will be wound automatically through normal wrist
movement.
*If the watch is used without being wound up sufficiently, gain or loss of the watch may result. To avoid
this, wear the watch for more than 8 hours a day.
7S26/7S36

English
6
1
Unlock the
crown by
turning it
counterclockwise.
Pull out the
crown to the
first click.
2
Turn the crown
clockwise until
the previous
day's date
appears.
3
Turn the crown
counter
clockwise until
the previous day
of the week in the
desired language
appears.
4
TIME/CALENDAR SETTING ( 7S26/7S36 )
MON
15
➠
2
3
4
1
MON
16
➠
5
6
7
➠
8
Pull out the
crown to the
second click.
56
Turn the crown to
advance the hands
until the date and day
change to the next.
When they have
changed, the time is
Push back the
crown.
set for the A.M.
period.
Keep advancing
the hands to set
the correct time.
Lock the crown
by turning it
clockwise while
pressing it.
7
8
*Do not change the day or the date between 9:00 p.m. and 4:00 a.m.

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English
15 16
A.M. period.
Keep advancing
the hands to set
the correct time.
1
Unlock the
crown by
turning it
counterclockwise.
Pull out the
crown to the
first click.
2
Turn the crown
clockwise until
the previous
day's date
appears.
3
TIME/CALENDAR SETTING ( 7S35 )
➠
3
➠
5
➠
Pull out the
crown to the
second click.
Turn the crown to
advance the hands
until the date change
to the next. When it
has changed, the
time is set for the
Push back the
crown.
Lock the crown
by turning it
clockwise while
pressing it.
4
76
456
2
1
7
*Do not change the date between 9:00 p.m. and 4:00 a.m.

English
8
ROTATING BEZEL
1Turn the rotating bezel to align the
“ ” mark to the minute hand.
2When time has elapsed, read the
number on the rotating bezel.
The rotating bezel can show up to 60 minutes of elapsed time.
*Turn the hands past the 12 o’clock marker to determine whether the watch is set for the A.M.
or P.M. period. If the calendar changes when the hour hand passes the 12 o’clock marker,
the time is set for A.M. If the calendar does not change, the time is set for P.M.
*When setting the hands, first set them to a time a few minutes earlier than the correct time,
and then advance them to the exact time.
* It is necessary to adjust the date at the end of February and 30-day months.
Example: Starting time : 10:10
Finishing time : 10:40
Elapsed time : 30 minutes
Elapsed time
*For safety’s sake, the rotating bezel rotates only counterclockwise, so that the time measured
is never shorter than the actual elapsed time.

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English
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.
●Do not use the watch for saturation diving using helium gas.
●Check that:
•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 “ ” 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.
BEFORE DIVING
PRECAUTIONS
●Do not operate the crown 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 harder in the water but this is not a malfunction.
WHILE DIVING

English
10
TO PRESERVE THE QUALITY OF YOUR WATCH
●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.
■TEMPERATURES
+60°C
-10°C
Your watch works with stable accuracy within a temperature range of 5°C
and 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 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.
●After checking that the crown is screwed in completely, rinse the watch in fresh water, and wash out all
seawater, soil, sand, etc.
●After cleaning the watch in fresh water, be sure to wipe it thoroughly dry to prevent possible rust on the
case.
AFTER DIVING
NOTES FOR USING THE WATCH
●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.

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English
■CHEMICALS ■PERIODIC CHECK
2 - 3
Years
■MAGNETISM
Your watch will be
adversely affected by
strong magnetism.
Keep it away from
close contact with
magnetic objects.
NS
It is recommended that the watch
be checked once every 2 to 3
years by an AUTHORIZED SEIKO
DEALER or SERVICE CENTER to
ensure that the case, crown,
gasket and crystal seal remain
intact.
Be careful not to expose the
watch to solvents, mercury,
cosmetic spray, detergents,
adhesives or paints. Otherwise,
the case, bracelet, etc. may
become discolored,
deteriorated or damaged.
To prevent possible rusting
of the case and bracelet, wipe
them periodically with a soft
dry cloth.
■CARE OF CASE AND
BRACELET
■SHOCKS &
VIBRATION
Be careful not to drop
your watch or hit it
against hard surfaces.
■ PRECAUTIONREGARDINGCASE
BACK PROTECTIVE FILM
If your watch has a protective film
and/or a sticker on the case back,
peel them off before using your
watch.

English
12
LUMIBRITETM
LumiBrite is a newly developed luminous paint that is completely harmless to human beings and
the natural environment, containing no noxious materials such as radioactive substances.
LumiBrite absorbs the 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 [Cloudy weather]: 1,000 to 3,000 lux
[Rainy weather]: less than 1,000 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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English
SPECIFICATIONS
1Vibrations per hour ............................................ 21,600
2 Operational temperature range ......................... –10°C ~ +60°C (14°F ~ 140°F)
3Driving system .................................................. Self-winding type
4Jewels ............................................................... 7S26: 21 jewels
7S35: 23 jewels
7S36: 23 jewels
5Magnetic resistance .......................................... 4,800 A/m (60 gauss)
6 Water resistance ............................................... Water resistant up to 200 meters
The watch is suitable for scuba diving.
*The specifications are subject to change without prior notice for product improvement.