Operation Guide 5110
E-70
• If you are in an area where proper time calibration signal reception is impossible,
the watch keeps the time with the precision noted in “Specifi
• If you have problems with proper time calibration signal reception or if the time
setting is wrong after signal reception, check your current city code, and DST
(Daylight Saving Time) settings (page E-58).
• The Home City setting reverts to the initial default of
TYO
(Tokyo) whenever the
battery power drops to Level 5 (
CHG
) or when you have the rechargeable battery
replaced. If this happens, change the Home City to the setting you want (page
E-12).
Transmitters
The time calibration signal received by this watch depends on the currently
selected Home City (page E-12).
• When a U.S. time zone is selected, the watch receives the time calibration signal
transmitted from the United States (Fort Collins).
• When a Japanese time zone is selected, the watch receives the time calibration
signals transmitted from Japan (Fukushima and Fukuoka/Saga).
• When a European time zone is selected, the watch receives the time calibration
signals transmitted from Germany (Mainfl
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• When a China time zone is selected, the watch receives the time calibration signal
transmitted from China (Shangqiu City).
• When your Home City is
LIS
,
LON
,
MAD
,
PAR
,
ROM
,
BER
,
STO
,
ATH
,
MOW
(which
can receive both the Anthorn and Mainfl
up the signal it last received successfully. If that fails, it tries the other signal. For
the fi
fi
LIS
,
LON
, Mainfl
MAD
,
PAR
,
ROM
,
BER
,
STO
,
ATH
, and
MOW
).
Auto Return Features
• If you leave the watch with a fl
without performing any operation, the watch will exit the setting mode automatically.
• The watch will return to the Timekeeping Mode automatically if you do not perform
any operation for two or three minutes in the Alarm Mode.
High-Speed Movement
• The
D
and
B
buttons are used to change the hand setting in various setting
modes. In most cases, holding down these buttons will start high-speed movement
of the applicable hand(s).
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Initial Screens
When you enter the World Time Mode or Alarm Mode, the data you were viewing
when you last exited the screen will appear fi
Timekeeping
• Resetting the seconds to 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 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 (
CHG
) (page E-51).
• 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.
E-73
Illumination Precautions
• Illumination may be hard to see when viewed under direct sunlight.
• Illumination turns off automatically whenever an alarm sounds.
• Frequent use of illumination runs down the battery.
Auto light switch precautions
• The auto light switch is turned off automatically whenever battery power is at Level
4 (
CHG
) (page E-51).
• 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 above or below parallel. Make
sure that the back of your hand is parallel to the
ground.
• Illumination turns off in about one second, even if you
keep the watch pointed towards your face.
More than 15 degrees
too high
E-74
• 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.
E-75
Specifi cations
Accuracy at normal temperature:
± 15 seconds a month (with no signal calibration)
Digital Timekeeping:
Hour, minutes, seconds, p.m. (PM), 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)
Analog Timekeeping:
Hour, minutes (hand moves every 10 seconds)
Time Calibration Signal Reception:
Auto receive 6 times a day (Remaining auto
receives cancelled as soon as one is successful) (5 times a day for the
Chinese calibration signal); Manual receive
Receivable Time Calibration Signals: Mainfl
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)
E-76
World Time:
48 cities (29 time zones) and Coordinated Universal Time
Other: Daylight Saving Time/Standard Time; Home City/World Time City Swapping
Stopwatch:
Measuring unit: 1/100 second
Measuring capacity: 23:59' 59.99''
Measuring modes: Elapsed time, split time, two fi
Countdown Timer:
Measuring unit: 1 second
Input range: 1 minute to 60 minutes (1-minute increments)
Other: Auto-repeat timing
Alarms:
Four one-time alarms; one snooze alarm; Hourly Time Signal
Illumination:
LED (light-emitting diode); Auto Light Switch (Full Auto LED Light
operates only in the dark)
Other:
Power Saving
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Power Supply:
Solar panel and one rechargeable battery
Approximate battery operating time: 6 months (from full charge to Level 5
(
CHG
)) 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
•
4 minutes of signal reception per day
Frequent use of illumination runs down the battery. Particular care is required
when using the auto light switch (page E-73).
L-1
