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Operation Guide 3184
Auto Return
• If you do not perform any operation for about two or three minutes while a setting
screen (with a flashing setting) is on the display, the watch will exit the setting screen
automatically.
• The watch returns to the Timekeeping Mode automatically if you do not perform any
button operation for two or three minutes in the Alarm Mode and Tide/Moon Data
Mode.
Scrolling
B and D are used in various modes and setting screens to scroll through data on
the display. In most cases, holding down these buttons during a scroll operation scrolls
at high speed.
Initial Screens
When you enter the World Time Mode or Alarm Mode, the data you were viewing
when you last exited the mode appears first.
Timekeeping
• Resetting the seconds to 00 while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to 00 without changing the minutes.
• The year can be set in the range of 2000 to 2099.
• The watch's built-in full automatic calendar makes allowances for different month
lengths and leap years. Once you set the date, there should be no reason to change
it except when battery power drops to Level 5.
• The current time for all city codes in the Timekeeping Mode and World Time Mode is
calculated in accordance with the Coordinated Universal Time (UTC) for each city,
based on your Home City time setting.
World Time
The seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.
Illumination Precautions
• The electro-luminescent panel that provides illumination loses power after very long
use.
• Illumination may be difficult 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.
Auto light switch precautions
• Avoid wearing the watch on the inside of your wrist while the auto light switch is
enabled. 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,
disable 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
too high
sure that the back of your hand is parallel to the ground.
• Illumination turns off after a preset amount of time (1.5
or 3 seconds), even if you keep the watch pointed
towards your face.
• 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 toward 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.
Specifications
Accuracy at normal temperature: ±15 seconds a month (with no signal calibration)
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: Home City code (can be assigned one of 48 city codes); Standard Time /
Daylight Saving Time (summer time)
Time Calibration Signal Reception: Auto receive 6 times a day (5 times a day for the
Chinese calibration signal) (Remaining auto receives cancelled as soon as
one is successful); Manual receive
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); Shangqiu City, Henan
Province, China (Call Sign: BPC, Frequency: 68.5 kHz)
Diving Functions:
Dive time measurement unit: 1 second
Dive time measurement range: 23:59'59'' (24 hours)
Dive interval time measurement unit: 1 minute
Dive interval time measurement range: 47:59' (48 hours)
Diving log records: 10 (Dive start month, day, and time, dive time, dive interval time)
Tide/Moon Data:
Moon phase indicator for specific date; Tide level for specific date and time
Other: High tide time adjustment; Moon phase reversal
World Time: 48 cities (31 time zones)
Other: Daylight Saving Time/Standard Time
Alarms: 5 daily alarms (four one-time alarms; one snooze alarm); Hourly Time Signal
Stopwatch:
Measuring unit: 1/100 second
Measuring capacity: 23:59' 59.99''
Measuring modes: Elapsed time, split time, two finishes
Countdown Timer:
Measuring unit: 1 second
Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
Illumination: EL (electro-luminescent panel); Full Auto Light Switch; Selectable
illumination duration
Other: Button operation tone on/off
Power Supply: Solar cell and one rechargeable battery
Approximate battery operating time: 8 months (from full charge to Level 4) under
the following conditions:
• Watch not exposed to light
• Internal timekeeping
• 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
• Approximately 4 minutes of signal reception per day
• 50 Diving Mode operations per year (60-minute dive time per measurement)
Frequent use of illumination runs down the battery. Particular care is required
when using the auto light switch.
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
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
• Based on data as of June 2009.
• The rules governing global times (UTC offset and GMT differential) and summer
time are determined by each individual country.
City
UTC Offset/
City
Code
GMT Differential
MOW
Moscow
+3
JED
Jeddah
THR
Tehran
+3.5
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
GUM
Guam
+10
SYD
Sydney
NOU
Noumea
+11
WLG
Wellington
+12
8
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