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Operation Guide 3427
World Time
The seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.
All World Time Mode times are calculated from the current Home City Time in the
Timekeeping Mode using UTC time offset values.
The UTC offset is a value that indicates the time difference between a reference
point in Greenwich, England and the time zone where a city is located.
The letters "UTC" is the abbreviation for "Coordinated Universal Time", which is the
world-wide scientifi c standard of timekeeping. It is based upon carefully maintained
atomic (cesium) clocks that keep time accurately to within microseconds. Leap
seconds are added or subtracted as necessary to keep UTC in sync with the Earth's
rotation.
E-40
Illumination Precautions
Illumination loses power after very long use.
Illumination may be hard to see when viewed under direct sunlight.
Illumination will turn off automatically if an alarm starts to sound while Flash Alert is
turned off. When Flash Alert is turned on, illumination will fl ash with the alarm.
Frequent use of illumination runs down the battery.
Auto light switch precautions
Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light
switch to operate when it is not needed, which shortens battery life. If you want to
wear the watch on the inside of your wrist, turn off the auto light switch feature.
Illumination may not turn on if the face of the watch is
More than 15 degrees
more than 15 degrees above or below parallel. Make sure
too high
that the back of your hand is parallel to the ground.
Illumination turns off after the preset illumination duration
(see "To specify the illumination duration" (page E-33)),
even if you keep the watch pointed towards your face.
E-42
Specifi cations
Accuracy at normal temperature: ±15 seconds a month
Timekeeping: Hour, minutes, seconds, p.m. (P), month, day, day of the week
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Multi Time (one Home City Time and three Local Times); Daylight Saving
Time (summer time)/Standard Time
World Time: 48 cities (31 time zones) and Coordinated Universal Time
Other: Standard Time/Daylight Saving Time (summer time); Home Time City/
World Time City swapping
Alarms: 5 alarms (One-time or Daily), Hourly Time Signal
Countdown Timer
Measuring unit: 1/10 second
Input range: 1 second to 24 hours (1-second increments, 1-minute increments and
1-hour increments)
E-44
City Code Table
City
UTC Offset/
City
Code
GMT Differential
PPG
Pago Pago
–11
HNL
Honolulu
–10
ANC
Anchorage
–9
YVR
Vancouver
–8
LAX
Los Angeles
YEA
Edmonton
–7
DEN
Denver
MEX
Mexico City
–6
CHI
Chicago
NYC
New York
–5
SCL
Santiago
–4
YHZ
Halifax
YYT
St. Johns
–3.5
RIO
Rio De Janeiro
–3
FEN Fernando de Noronha
–2
L-2
City
UTC Offset/
City
Code
GMT Differential
RAI
Praia
–1
UTC
LIS
Lisbon
0
LON
London
MAD
Madrid
PAR
Paris
ROM
Rome
+1
BER
Berlin
STO
Stockholm
ATH
Athens
CAI
Cairo
+2
JRS
Jerusalem
MOW *
Moscow
+3
JED
Jeddah
THR
Tehran
+3.5
Flash Alert
When Flash Alert is turned on, the illumination fl ashes for
Flash Alert on indicator
the alarms, the Hourly Time Signal and the countdown
alarm.
To turn Flash Alert on and off
1. In the Timekeeping Mode, hold down A until the
seconds start to fl ash, which indicates the setting
screen.
2. Press C ten times to display the Flash Alert setting
screen.
3. Press D to toggle Flash Alert on and off.
The Flash Alert on indicator is shown on the display in
all modes while this function is turned on.
4. Press A to exit the setting screen.
Static electricity or magnetic force can interfere with proper operation of the auto
light switch. If illumination does not turn on, try moving the watch back to the starting
position (parallel with the ground) and then tilt it back towards you again. If this does
not work, drop your arm all the way down so it hangs at your side, and then bring it
back up again.
Under certain conditions, illumination may not turn on until about one second after
you turn the face of the watch towards you. This does not necessarily indicate
malfunction of the auto light switch.
You may notice a very faint clicking sound coming from the watch when it is shaken
back and forth. This sound is caused by mechanical operation of the auto light
switch, and does not indicate a problem with the watch.
Stopwatch
Measuring unit: 1/100 second
Measuring capacity: 23:59' 59.99"
Measuring modes: Elapsed time, split time, two fi nishes
Illumination: LED (light-emitting diode); Selectable illumination duration
Other: Button operation tone on/off; Auto Light Switch; Flash alert
Battery: One lithium battery (Type: CR2025)
Approximately 7 years on type CR2025; 20 seconds of alarm operation (with fl ash
alert), 1.5 seconds of illumination per day
City Code Table
City
UTC Offset/
City
Code
GMT Differential
DXB
Dubai
+4
KBL
Kabul
+4.5
KHI
Karachi
+5
DEL
Delhi
+5.5
KTM
Kathmandu
+5.75
DAC
Dhaka
+6
RGN
Yangon
+6.5
BKK
Bangkok
+7
SIN
Singapore
HKG
Hong Kong
+8
BJS
Beijing
TPE
Taipei
SEL
Seoul
+9
TYO
Tokyo
ADL
Adelaide
+9.5
E-41
E-43
E-45
L-1
City
UTC Offset/
City
Code
GMT Differential
GUM
Guam
+10
SYD
Sydney
NOU
Noumea
+11
WLG
Wellington
+12
L-3
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