Seiko Watch 2A27 User Guide

Cal. 2A27, 4J27, 7C17  
INSTRUCTIONS  
INSTRUCTIONS  
INSTRUCCIONES  
BEDIENUNGSANLEITUNG  
ISTRUZIONI  
(P.  
3)  
(P. 11)  
(P. 20)  
(S. 29)  
(P. 38)  
(P. 47)  
(56 )  
INSTRUÇÕES  
用法説明  
 
CONTENTS  
Page  
FEATURES ..................................................................................................................  
TIME SETTING ............................................................................................................  
HOW TO READ THE TIME .........................................................................................  
REMARKS ON USING THE WATCH ...........................................................................  
BATTERY CHANGE .....................................................................................................  
TO PRESERVE THE QUALITY OF YOUR WATCH......................................................  
SPECIFICATIONS ........................................................................................................  
4
5
6
7
7
9
10  
 
3
SEIKO ANALOGUE QUARTZ  
Cal. 2A27, 4J27, 7C17  
FEATURES  
Specially designed and manufactured for the visually challenged.  
The time is easily  
read by touching  
the hour (short)  
and minute (long)  
hands with your  
fingers.  
Longer markers at  
CROWN  
the 3, 6, 9 and 12  
(3 o’clock side)  
o’clock positions  
enable you to  
read the time  
easily.  
 
4
TIME SETTING  
Hour hand  
Minute hand  
CROWN  
1
2
Pull out.  
1
Turn to set the hour and minute  
hands.  
3
2
Push back in to normal position.  
3
CROWN  
NOTES  
1
2
When CROWN is pulled out, the watch stops operating.  
When setting the minute hand, advance it 4 to 5 minutes ahead of the desired time  
and then turn it back to the exact minute.  
 
5
HOW TO READ THE TIME  
Open the front cover.  
Pull up the snap located on the 6  
o’clock side of the front cover.  
Read the time.  
Touch the hands with your fingers.  
NOTES  
1
When touching the hands, take  
care not to move or damage them.  
2
The hands are slightly loose at  
the center. However, this is not  
a malfunction.  
 
6
REMARKS ON USING THE WATCH  
This watch is not water resistant, and care should be taken not to get it wet.  
Also, do not touch the hour and minute hands with wet fingers, as this will adversely  
affect the time accuracy.  
If the watch becomes wet, have it checked by an AUTHORIZED SEIKO DEALER or  
SERVICE CENTER.  
As the front cover is opened and closed every time you read the time, we recommend  
that the push pin supporting it be replaced with a new one once a year.  
BATTERY CHANGE  
Cal. 2A27 &  
The miniature battery which powers your watch should last approximately  
2 years (Cal. 2A27 and Cal. 4J27) / 5 years (Cal. 7C17). However,  
because the battery is inserted at the factory to check the function and  
performance of the watch, its actual life once in your possession may be  
less than the specified period. When the battery expires, be sure to replace  
it as soon as possible to prevent any malfunction. For battery replacement,  
we recommend that you contact an AUTHORIZED SEIKO DEALER and  
request SEIKO SR621SW (Cal. 2A27) / SEIKO SR521SW (Cal. 4J27) /  
SEIKO SR43SW (Cal. 7C17) battery.  
Cal. 4J27  
2
Years  
Cal. 7C17  
5
Years  
 
7
WARNING  
Do not remove the battery from the watch.  
If it is necessary to take out the battery, keep it out of the reach of children.  
If a child swallows it, consult a doctor immediately.  
Never short-circuit, tamper with or heat the battery, and never expose it to  
fire. The battery may burst, become very hot or catch fire.  
CAUTION  
The battery is not rechargeable. Never attempt to recharge it, as this may  
cause battery leakage or damage to the battery.  
 
8
TO PRESERVE THE QUALITY OF YOUR WATCH  
MAGNETISM  
TEMPERATURES  
Your watch works with stable  
Your watch will be adversely  
+60°C  
-10°C  
accuracy within a temperature  
range of 5°C and 35°C (41°F  
and 95°F).  
affected by strong magnetism.  
Keep it away from close contact  
with magnetic objects.  
N
S
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.  
CARE OF CASE AND BRACELET  
To prevent possible rusting of the  
case and bracelet caused by dust,  
moisture and perspiration, wipe  
them periodically with a soft dry  
cloth.  
PERIODIC CHECK  
SHOCKS & VIBRATION  
It is recommended that the  
watch be checked once every  
Light activities will not affect  
your watch, but be careful not  
to drop your watch or hit it  
against hard surfaces, as this  
may cause damage.  
2 - 3  
2 to 3 years. Have your watch  
Years  
checked by an AUTHORIZED  
SEIKO DEALER or SERVICE CENTER to  
ensure that the case, crown, gasket and  
crystal seal remain intact.  
 
9
CHEMICALS  
PRECAUTION REGARDING  
CASE BACK PROTECTIVE FILM  
Be careful not to expose the  
watch to solvents (e.g., alcohol  
and gasoline), mercury (i.e., from  
If your watch has a protective  
film and/or a sticker on the case  
back, be sure to peel them off  
before using your watch.  
a
broken thermometer),  
cosmetic spray, detergents, adhesives or  
paints. Otherwise, the case, bracelet, etc.  
may become discolored, deteriorated or  
damaged.  
Otherwise, perspiration getting in under  
them may rust the case back.  
SPECIFICATIONS  
1
2
Frequency of crystal oscillator ................ 32,768 Hz (Hz = Hertz ... Cycles per second)  
Loss/gain (monthly rate) ......................... Less than 15 seconds at normal temperature  
range (5°C ~ 35°C) (41°F ~ 95°F)  
3
4
5
Operational temperature range .............. –10°C ~ +60°C (14°F ~ 140°F)  
Driving system ....................................... Step motor  
Battery .................................................... SEIKO SR621SW, 1 piece (Cal. 2A27)  
SEIKO SR521SW, 1 piece (Cal. 4J27)  
SEIKO SR43SW, 1 piece (Cal. 7C17)  
6
IC (Integrated Circuit) ............................. C-MOS-IC, 1 piece  
* The specifications are subject to change without prior notice for product improvement.  
 
10  

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