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Operation Guide 3107
12-hour/24-hour Timekeeping Formats
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is also
applied in all other modes.
• With the 12-hour format, the PM indicator (P) appears on the display for times in the
range of noon to 11:59 p.m. and no indicator appears for times in the range of
midnight to 11:59 a.m.
• With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
any indicator.
Illumination Precautions
• The electro-luminescent panel that provides illumination loses power after very long
use.
• Illumination may be hard to see when viewed under direct sunlight.
• The watch may emit an audible sound whenever the display is illuminated. This is
due to vibration of the EL panel used for illumination, and does not indicate
malfunction.
• Illumination turns off automatically whenever an alarm sounds.
• Frequent use of illumination runs down the battery.
Specifications
Accuracy at normal temperature: ± 30 seconds a month (with no signal calibration)
Timekeeping: Hour, minutes, seconds, p.m. (P), month, day, day of the week
Time system: Switchable between 12-hour and 24-hour formats
Calendar system: Full Auto calendar pre-programmed from the year 2000 to 2099
Other: Home city code (can be assigned one of 48 city codes); Daylight
Saving Time (summer time)/Standard Time
Time Calibration Signal Reception: Auto receive up to six times a day (remaining
auto receives cancelled as soon as one is successful); Manual Receive;
Last Signal screen
Receivable Time Calibration Signals: Mainflingen, Germany (Call Sign: DCF77,
Frequency: 77.5 kHz); Anthorn, England (Call Sign: MSF, Frequency: 60.0
kHz); Fort Collins, Colorado, the United States (Call Sign: WWVB,
Frequency: 60.0 kHz); Fukushima, Japan (Call Sign: JJY, Frequency: 40.0
kHz); Fukuoka/Saga, Japan (Call Sign: JJY, Frequency: 60.0 kHz)
World Time: 48 cities (29 time zones)
Other: Standard Time/Daylight Saving Time (summer time)
Stopwatch
Measuring unit: 1/100 second
Measuring capacity: 999:59' 59.99''
Measuring modes: Elapsed time, split time, two finishes
Other: Auto-Start
Countdown Timer
Measuring unit: 1/10 second
Input range: 1 to 60 minutes (1-minute increments)
Alarms: 5 daily alarms (Four one-time alarms; one snooze/one-time alarm); Hourly
Time Signal
Illumination: EL (electronic-luminescent panel)
Other: Battery power indicator; Power Saving; Button operation tone on/off
Power Supply: Solar cell and a rechargeable battery
Approximate Battery Operating Time
9 months (from full charge to Level 4 when the watch is not exposed to light)
under the following conditions:
• Display on 18 hours per day, sleep state 6 hours per day
• 1 illumination operation (1.5 seconds) per day
• 10 seconds of alarm operation per day
• 10 minutes of signal reception per day
Frequent use of illumination can shorten battery operating time.
City Code Table
City
UTC Offset/
City
Code
GMT Differential
PPG
Pago Pago
–11
Honolulu
HNL
–10
Anchorage
ANC
–9
YVR
Vancouver
–8
Los Angeles
LAX
Edmonton
YEA
–7
DEN
Denver
Mexico City
MEX
Winnipeg
–6
YWG
CHI
Chicago
Miami
MIA
Toronto
–5
YTO
NYC
New York
Caracas
CCS*
–4
Halifax
YHZ
YYT
St. Johns
–3.5
RIO
Rio De Janeiro
–3
Praia
RAI
–1
LIS
Lisbon
0
LON
London
Madrid
MAD
PAR
Paris
ROM
Rome
+1
Berlin
BER
STO
Stockholm
ATH
Athens
Cairo
+2
CAI
Jerusalem
JRS
MOW
Moscow
+3
Jeddah
JED
Tehran
THR
+3.5
DXB
Dubai
+4
Kabul
KBL
+4.5
Karachi
KHI
+5
DEL
Delhi
+5.5
Dhaka
DAC
+6
City
UTC Offset/
City
Code
GMT Differential
RGN
Yangon
+6.5
BKK
Bangkok
+7
HKG
Hong Kong
Beijing
+8
BJS
TPE
Taipei
SEL
Seoul
+9
Tokyo
TYO
ADL
Adelaide
+9.5
GUM
Guam
+10
Sydney
SYD
NOU
Noumea
+11
WLG
Wellington
+12
• Based on data as of June 2008.
• The rules governing global times (UTC
offset and GMT differential) and summer
time are determined by each individual
country.
* In December 2007, Venezuela changed
its offset from –4 to –4.5. Note, however,
that this watch displays an offset of –4
(the old offset) for the CCS (Caracas,
Venezuela) city code.
6
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