You are now the proud owner of a SEIKO Analogue Quartz Watch Cal.
Y187. 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.
Siete ora in possesso di un orologio SEIKO Analogico al Quarzo Cal. Y187.
Per ottenere i migliori possibili risultati dal vostro orologio, leggere
attentamente le istruzioni di questo manuale prima di utilizzare il vostro
orologio SEIKO analogico al quarzo. Conservare poi il manuale stesso per
ogni qualsiasi eventuale futuro riferimento.
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CAL. Y187
STOPWATCH
● STOPWATCH minute and 1/5-second
hands
● Measures up to 30 minutes in 1/5 second
increments.
● Split time measurement
TIME/CALENDAR
● Hour and minute hands with small
second and 24-hour hands
● Date displayed in numerals
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3
DATE SETTING
CROWN
Date
Pull out to first click and turn clockwise
until the previous day’s date appears.
▼
Pull out to second click and turn until the
desired date appears.
➠
➠
8
➠
▼
Push back in to normal position.
TIME SETTING
Hour hand
Minute hand
CROWN
Pull out to second click when Small sec-
ond hand is at the 12 o’clock position.
▼
Turn to set 24-hour, Hour and Minute
hands.
➠
8
➠
▼
Push back in to normal position in accor-
dance with a time signal.
24-hour hand
Small second hand
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4
STOPWATCH
● The stopwatch can measure up to 30 minutes in 1/5 second increments.
● After 30 minutes, it will start counting again from “0” repeatedly up to 6 hours.
STOPWATCH OPERATION
STOPWATCH minute hand
Reset / Split / Split release
Start / Stop / Restart
B
A
STOPWATCH 1/5-second hand
● Before using the stopwatch:
•
•
Check that the crown is set at the normal position.
Press button B to reset the STOPWATCH hands to “0” position.
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5
Standard measurement
A
START
A
STOP
B
RESET
Accumulated elapsed time measurement
* Restart and stop of
the stopwatch can
be repeated by
pressing button A.
• • • •
A
START
A
STOP
A
A
STOP
B
RESET
RESTART
Split time measurement
* Measurement and
release of split
t i m e c a n b e
r e p e a t e d b y
pressing button B.
• • • •
A
START
B
SPLIT
B
SPLIT
A
STOP
B
RESET
RELEASE
Measurement of two competitors
A
START
B
A
2ND
COMPETITOR
FINISHES
B
RESET
B
FINISH TIME
FINISH TIME
OF 2ND
OF 1ST
COMPETITOR
COMPETITOR
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6
ADJUSTING THE HAND POSITION
● If the STOPWATCH hands do not return to “0” position when the stopwatch is reset or when
the battery is replaced with a new one, follow the procedure below.
STOPWATCH
minute hand
CROWN
▼
Pull out to second click.
Press repeatedly to reset STOP-
WATCH minute hand to “0” posi-
tion.
A
B
A
▼
➠
Press repeatedly to reset STOP-
WATCH 1/5-second hand to “0”
position.
B
➠
▼
CROWN
Push back in to normal position.
STOPWATCH
1/5-second hand
* Hands move quickly if the respective buttons are
kept pressed.
* After adjusting the STOPWATCH hand position, be
sure to set the time following the procedure in
“TIME SETTING”.
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7
NOTES ON USING THE WATCH
DATE SETTING
● Do not set the date between 9:00 p.m. and 3:00 a.m. Otherwise, the date may not change properly. If
it is necessary to set the date during that time period, first change the time to any time outside it, set the
date and then reset the correct time.
TIME SETTING
● The 24-hour hand moves correspondingly with the hour hand. When setting the hour hand, check the 24-
hour hand to see that AM/PM is correctly set.
● When setting the minute hand, advance it 4 to 5 minutes ahead of the desired time and then turn it back
to the exact time.
STOPWATCH
● When the stopwatch has been reset and button A is pressed before the STOPWATCH hands reach “0”
position, the stopwatch starts counting time as button A is pressed.
● Note on crown operation while the stopwatch is in use:
Even if the crown is pulled out to the first click, the stopwatch continues measuring. However, if it is pulled
out to the second click, the STOPWATCH hands are reset to “0” position.
HOW TO OPERATE THE SCREW LOCK TYPE CROWN
(for models with screw lock type crown)
● To unscrew the crown:
Turn the crown counterclockwise. Then, pull it out for time/calendar setting or for adjusting the
STOPWATCH hand position.
● To screw in the crown:
With the crown at the normal position, turn it clockwise while pressing it.
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8
BATTERY LIFE INDICATOR
● Whenthebatterynearsitsend, thesmallsecondhandmovesattwo-secondintervalsinstead
of normal one-second intervals to indicate that the battery needs to be replaced with a new
one.
BATTERY CHANGE
The miniature battery which powers your watch should last approximately
2
Years
2 years. 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 SR927SW battery.
* If the stopwatch is used to measure up to 30 minutes more than twice a day, the
battery life may be less than the specified period.
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.
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9
CAUTION
● Never short-circuit, heat or otherwise tamper with the battery, and never
expose it to fire. The battery may burst, become very hot or catch fire.
● The battery is not rechargeable. Never attempt to recharge it, as this may cause
battery leakage or damage to the battery.
SPECIFICATIONS
1
2
Frequency of crystal oscillator ......
Loss/gain (monthly rate) ................
32,768 Hz (Hz = Hertz ... Cycles per second)
Less than 20 seconds at normal temperature range (5° C ~ 35°
C) (41° F ~ 95° F)
3
4
5
Operational temperature range .....
Driving system ..............................
Display system
–5° C ~ +50° C (23° F ~ 122° F)
Step motor, 3 pieces
Time .......................................
Date ........................................
Stopwatch ..............................
Hour, minute, second and 24-hour hands
Displayed in numerals.
Minute and 1/5-second hands
The stopwatch measures up to 30 minutes in 1/5 second increments.
SEIKO SR927SW, 1 piece
6
7
8
Battery ..........................................
Battery life indicator
IC (Integrated Circuit) ....................
C-MOS-LSI, 1 piece
*
The specifications are subject to change without prior notice for product improvement.
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