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Operation Guide 5022
Charging Guide
After a full charge, timekeeping remains enabled for up to about five months.
• The following table shows the amount of time the watch needs to be exposed to light
each day in order to generate enough power for normal daily operations.
Exposure Level (Brightness)
Outdoor sunlight (50,000 lux)
Sunlight through a window (10,000 lux)
Daylight through a window on a cloudy day
(5,000 lux)
Indoor fluorescent lighting (500 lux)
• Since these are the specs, we can include all the technical details.
• Watch is not exposed to light
• Internal timekeeping
• Analog hands operational 18 hours per day, sleep state 6 hours per day
• 10 seconds of alarm operation per day
• 6 minutes of signal reception per day
• Stable operation is promoted by frequent charging.
Recovery Times
The table below shows the amount exposure that is required to take the battery from
one level to the next.
Exposure Level
Approximate Exposure Time
(Brightness)
Level 3
Outdoor sunlight (50,000 lux)
1 hour
Sunlight through a window
2 hours
(10,000 lux)
Daylight through a window on
4 hours
a cloudy day (5,000 lux)
Indoor fluorescent lighting
34 hours
(500 lux)
• The above exposure time values are all for reference only. Actual required exposure
times depend on lighting conditions.
Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Auto Return Features
• If you leave the watch in the Alarm Mode or home position adjustment mode for two
or three minutes without performing any operation, it returns to the Timekeeping
Mode automatically.
• If you do not perform any operation for about two or three minutes while a setting
mode is selected, the watch will exit the setting mode automatically.
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) and day.
• High-speed movement of hands and day will continue until you press any button, or
until the moving hand(s) and day finishes one complete cycle.
- One complete cycle for the hands is one revolution (360 degrees) of the hour
hand, or 24 hours.
- One complete cycle for the day is 31 days.
• High-speed hand movement also is triggered by changing from one mode to
another, changing a World Time Mode setting (changing the World Time city in the
World Time Mode, swapping the World Time city and Home Time city), etc.
• All buttons (except for the C button for changing modes) are disabled during a high-
speed hand or date operation. You will be able to perform button operations again
after high-speed operation is stopped.
Radio-controlled Atomic Timekeeping Precautions
• Strong electrostatic charge can result in the wrong time being set.
• The time calibration signal bounces off the ionosphere. Because of this, such factors
as changes in the reflectivity of the ionosphere, as well as movement of the
ionosphere to higher altitudes due to seasonal atmospheric changes or the time of
day may change the reception range of the signal and make reception temporarily
impossible.
• Even if the time calibration signal is received properly, certain conditions can cause
the time setting to be off by up to one second.
• The current time setting in accordance with the time calibration signal takes priority
over any time settings you make manually.
• The watch is designed to update the date and day of the week automatically for the
period January 1, 2000 to December 31, 2099. Setting of the date by the time
calibration signal will not be performed starting from January 1, 2100.
• This watch can receive signals that differentiate between leap years and non-leap
years.
• Though this watch is designed to receive both time data (hour, minutes, seconds)
and date data (year, month, day), certain signal conditions can limit reception to time
data only.
• If you are in an area where proper time calibration signal reception is impossible, the
watch keeps time within ±20 seconds a month at normal temperature.
Timekeeping
• 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 after you have the watch's battery replaced or when battery power drops to
Level 3.
• The date will change automatically when the current time reaches midnight. The
date change at the end of the month may take more time than normal.
• The current time for all city codes in the Timekeeping Mode is calculated in
accordance with the Greenwich Mean Time (GMT) differential of each city, based on
your Home City time setting.
• GMT differential is calculated by this watch based on Coordinated Universal Time
(UTC*) data.
* UTC is the world-wide scientific 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. The reference point for UTC is Greenwich, England.
Approximate Exposure Time
8 minutes
30 minutes
48 minutes
8 hours
Level 2
Level 1
20 hours
73 hours
– – –
– – –
Power Saving
Power Saving enters a sleep state automatically whenever the watch is left for a
certain period in an area where it is dark. The table below shows how watch functions
are affected by Power Saving.
• There actually are two sleep state levels: "second hand sleep" and "function sleep".
Elapsed Time in Dark
60 to 70 minutes
Second hand only is stopped, all other functions are
(second hand sleep)
enabled.
• All functions, including analog timekeeping, disabled
6 or 7 days
• Internal timekeeping maintained
(function sleep)
• Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.
• The watch will not enter the sleep state between 6:00 AM and 9:59 PM. If the watch
is already in the sleep state when 6:00 AM arrives, however, it will remain in the
sleep state.
To recover from the sleep state
Perform any one of the following operations.
• Move the watch to a well-lit area.
• Press any button.
City Code Table
City
City
GMT
Code
Differential
PPG
Pago Pago
–11.0
HNL
Honolulu
–10.0
Papeete
ANC
Anchorage
–09.0
Nome
San Francisco, Las Vegas, Vancouver,
LAX
Los Angeles
–08.0
Seattle/Tacoma, Dawson City, Tijuana
DEN
Denver
–07.0
El Paso, Edmonton, Culiacan
Houston, Dallas/Fort Worth,
CHI
Chicago
–06.0
New Orleans, Mexico City, Winnipeg
Montreal, Detroit, Miami, Boston,
NYC
New York
–05.0
Panama City, Havana, Lima, Bogota
CCS*
Caracas
–04.0
La Paz, Santiago, Port Of Spain
RIO
Rio De Janeiro
–03.0
Sao Paulo, Buenos Aires, Brasilia, Montevideo
– 02
–02.0
– 01
–01.0
Praia
GMT
Dublin, Lisbon, Casablanca, Dakar, Abidjan
+00.0
LON
London
Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,
PAR
Paris
+01.0
Frankfurt, Vienna, Stockholm, Berlin
Cairo, Jerusalem, Helsinki, Istanbul, Beirut, Damascus,
ATH
Athens
+02.0
Cape Town
JED
Jeddah
+03.0
Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow
THR
Tehran
+03.5
Shiraz
DXB
Dubai
+04.0
Abu Dhabi, Muscat
KBL
Kabul
+04.5
KHI
Karachi
+05.0
Male
DEL
Delhi
+05.5
Mumbai, Kolkata, Colombo
DAC
Dhaka
+06.0
RGN
Yangon
+06.5
BKK
Bangkok
+07.0
Jakarta, Phnom Penh, Hanoi, Vientiane
Singapore, Kuala Lumpur, Hong Kong, Taipei, Manila,
BJS
Beijing
+08.0
Perth, Ulaanbaatar
TYO
Tokyo
+09.0
Seoul, Pyongyang
ADL
Adelaide
+09.5
Darwin
SYD
Sydney
+10.0
Melbourne, Guam, Rabaul
NOU
Noumea
+11.0
Port Vila
WLG
Wellington
+12.0
Christchurch, Nadi, Nauru Island
• Based on data as of June 2007.
• The rules governing global times (GMT differential and UTC offset) and summer
time are determined by each individual country.
* In December 2007, Venezuela changed its offset from –4.0 to –4.5. Note however,
that this watch displays an offset of –4.0 (the old offset) for the CCS (Caracas,
Venezuela) city code.
Operation
Other major cities in same time zone
5
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