MO0710-EA
Operation Guide 5019
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out
of your purchase, be sure to read this manual carefully.
Keep the watch exposed to bright light
Bright light
l
l
• The watch continues to operate even when it is not exposed to light.
Leaving the watch in the dark can cause the battery to run down, which will
cause some watch functions to be disabled. If the battery goes dead, you
will have to re-configure watch settings after recharging. To ensure normal
watch operation, be sure to keep it exposed to light as much as possible.
Battery charges in the light.
Solar cell
(Converts light to
electrical power.)
l
l
l
l
l
l
Solar cell
Charge
Rechargeable battery
l
l
The electricity generated by the solar cell of the
watch is stored by a built-in battery. Leaving or
l
using the watch where it is not exposed to light
causes the battery to run down. Make sure the
watch is exposed to light as much as possible.
• When you are not wearing the watch on your
wrist, position the face so it is pointed at a
source of bright light.
• You should try to keep the watch outside of
your sleeve as much as possible. Even if the
face of the watch is only partially blocked from
light, charging will be reduced significantly.
Battery discharges in the dark.
Bright light
LEVEL 1
LEVEL 2
Electrical
energy
All
functions
enabled.
Dis-
charge
LEVEL 1
LEVEL 2
Some
functions
disabled.
General Guide
Manual Receive
Receive Status Check
• The actual level at which some functions are disabled depends on the
watch model.
• Be sure to read “Power Supply” for important information you need to
know when exposing the watch to bright light.
If the analog hands aren’t moving...
If the analog hands aren’t moving, it means that the power saving mode has
stopped them to save battery power.
• See “Power Saving” for more information.
• The hands also stop when the watch’s battery runs down.
Note that CASIO COMPUTER CO., LTD. assumes no responsibility for
any damage or loss suffered by you or any third party arising through the
use of this product or its malfunction.
About This Manual
Day hand
Hour hand
Second hand
24-hour
hand
Minute hand
Day of the
week hand
• Button operations are indicated using the
letters shown in the illustration.
• Each section of this manual provides you with
the information you need in order to perform
operations in each mode. Further details and
technical information can be found in the
“Reference” section.
Hold down B for
▲
about two seconds.
▲
Press B.Press B.
Time/Date Adjustment
Press any button.
Hold down B for
about five seconds.
▲
Press B.
▲
Timekeeping Mode
▲
▲
Radio-controlled Atomic Timekeeping
Long-wave
time
calibration
signal
Transmitter
Watch
Chinese Time Calibration Signal
The Chinese time calibration signal (BPC) is maintained by the National Time
Service Center (http://www.ntsc.ac.cn/) of the Chinese Academy of Sciences,
and is transmitted from a transmitter (68.5 kHz) located in Shangqiu. The time
data of the Chinese time calibration signal is maintained by the National Time
Service Center.
• Note that transmission of the calibration signal may be interrupted
occasionally due to maintenance, lightning, etc.
Your watch receives a time calibration signal and
updates its time setting accordingly.
• This watch is designed to receive the time
calibration signal transmitted from Shangqiu
City, Henan Province, China (Call Sign: BPC,
Frequency: 68.5 kHz).
• As of July 2007, China does not use Daylight
Saving Time (DST). If China does go to the
Daylight Saving Time system in the future,
some functions of this watch may no longer
operate correctly.
• See the information under “Signal Reception
Troubleshooting” if you experience problems
with time calibration signal reception.
Timekeeping Mode Stopwatch Mode
Press B.
▲
▲
Press C.
Current Time Setting
This watch adjusts its time setting automatically in accordance with a time
calibration signal. You also can perform a manual procedure to set the time
and date, when necessary.
• When using the watch in an area the Chinese time calibration signal does
not reach or outside the China time zone (GMT +8), you will need to adjust
the watch’s time setting manually. For information about adjusting the time
setting manually, see “Timekeeping”.
• The watch interprets any manual change of the time setting by more than
30 minutes or manual switching between Standard Time and Daylight
Saving time as a change to another time zone. At this time the watch turn
off auto receive automatically.
• If you successfully perform a manual receive operation after auto receive is
turned off automatically by one of the events described above, the watch
will turn auto receive back on automatically.
• Even if the time calibration signal is received correctly, there are some
times when the analog hands may not indicate the correct time. If this
happens, use the procedures under “Adjusting the Home Positions” to
check the home positions of the hands, and make adjustments as required.
1
Operation Guide 5019
Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration
signal: auto receive and manual receive.
• Auto Receive
With auto receive, the watch receives the time calibration signal automatically
up to five times a day. When any auto receive is successful, the remaining
auto receive operations are not performed. For more information, see “About
Auto Receive”.
• Manual Receive
Manual receive lets you start a time calibration receive operation with the
press of a button. For more information, see “To perform manual receive”.
Important!
• When getting ready to receive the time calibration signal, position the watch
as shown in the nearby illustration, with its 12 o’clock side facing towards a
window. This watch is designed to receive a time calibration signal late at
night. Because of this, you should place the watch near a window as shown
in the illustration when you take it off at night. Make sure there are no metal
objects nearby.
12 o’clock
or
• Make sure the watch is facing the right way.
• Proper signal reception can be difficult or even impossible under the
conditions listed below.
Inside or
among
buildings
• Signal reception normally is better at night than during the day.
• Time calibration signal reception takes from two to seven minutes. Take
care that you do not perform any button operations or move the watch
during this time.
Approximate Reception Range
500 km
• Even when the watch is within the reception range of a transmitter, signal
reception may be impossible at times due to the effects of geographic
contours, structures, weather, the season of the year, the time of day, radio
interference, etc. Note that the signal becomes weaker at distances of
approximately 500 kilometers from the transmitter, which means that the
influence of the conditions listed above becomes even greater.
• Signal reception is affected by weather, atmospheric conditions, and
seasonal changes.
1,500 km
Chengdu
Inside a
vehicle
Near
household
appliances,
office
equipment,
or a mobile
phone
Beijing
Near a
construction
site, airport,
or other
sources of
electrical
noise
Shangqiu
Near hightension
power lines
Changchun
Hong Kong
Among or
behind
mountains
Shanghai
About Auto Receive
The watch starts to receive the time calibration signal automatically when the
time in the Timekeeping Mode reaches 1:00 a.m., 2:00 a.m., 3:00 a.m., 4:00
a.m., and 5:00 a.m. each day (calibration times). When any auto receive is
successful, the remaining auto receive operations are not performed.
Note
• Auto receive is supported in all modes except while a stopwatch elapsed
time operation is in progress.
• Auto receipt of the calibration signal is designed to be performed early in
the morning, while you sleep (provided that the Timekeeping Mode time is
set correctly). Before going to bed for the night, remove the watch from your
wrist, and put it in a location where it can receive the signal easily.
• The watch receives the calibration signal for two to seven minutes every
day when the time in the Timekeeping Mode reaches each of the calibration
times. Do not perform any button operation within seven minutes before or
after any one of the calibration times. Doing so can interfere with correct
calibration.
• Remember that reception of the calibration signal depends on the current
time in the Timekeeping Mode.
To perform manual receive
Second hand
Day hand
Note
• To interrupt a receive operation and return to the Timekeeping Mode, press
any button.
• If reception is not successful, the day hand will move to N. Five seconds
later, the day hand will resume normal operation, without any adjustment of
the hand setting.
Viewing the Latest Signal Reception Results
You can use the procedure below to check whether or not the last signal
receive operation was successful.
1. Place the watch on a stable surface so its 12
o’clock side is facing towards a window.
2. In the Timekeeping Mode, hold down B for
about two seconds until the day hand moves
to R. This will cause the watch to prepare for
signal reception.
• At this time the second hand will move to 60
and stop.
• The day hand will move to W and stay there
while actual reception is in progress.
• If signal reception is unstable during reception,
the day hand may move between W and R.
• The hour and minute hands continue to keep
time normally during manual receive.
• Time calibration signal reception takes from
two to seven minutes. Take care that you do not
perform any button operations or move the
watch during this time.
• If reception is successful, the day hand will
move to Y. Five seconds later, the hands will
move to the correct time.
To check the latest signal reception results
Day hand
• Y continues to be indicated even if an attempt at manual receive fails after
auto receive is successful.
• If you adjust the time or date setting manually, the day hand will move to N.
In the Timekeeping Mode, press B.
• If the watch was able to perform a successful
signal receive operation since midnight, the
day hand will move to Y. If the watch has been
unable to receive any signal successfully, the
day hand will move to N.
• The watch will return to the Timekeeping Mode
after five seconds or when you press B.
• The current receive result is cleared when the
first auto receive operation is performed on the
following day. This means Y indicates
successful signal reception since the start of
the current day.
2
Operation Guide 5019
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal
reception.
The day hand
is pointing at N.
The time setting
is incorrect
following signal
reception.
• For further information, see “Important!” under “Time Calibration Signal
Reception” and “Radio-controlled Atomic Timekeeping Precautions”.
• You changed the time
setting manually.
• You performed some button
operation during the auto
receive operation.
• Signal reception results are
reset at midnight each day.
• Radio interference is often
present during the day time,
which can interfere with
calibration signal reception.
• If the time is one hour off,
the DST setting may be
incorrect.
What you should doProblem Probable Cause
• Perform manual signal
receive at night or wait
until the next auto signal
receive operation is
performed.
• Check to make sure the
watch is in a location
where it can receive the
signal.
• Select the correct DST
setting.
Stopwatch
Stopwatch
second hand
Stopwatch
minute hand
To measure elapsed time
1. In the Timekeeping Mode, press C to enter the Stopwatch Mode.
2. In the Stopwatch Mode, press A to start the stopwatch.
3. Press A to stop the stopwatch.
• You can resume the measurement operation by pressing A again.
4. Check the elapsed time.
• Press C to reset the stopwatch to all zeros. The stopwatch will reset to all
zeros even if you press C while elapsed time measurement is in progress.
• You can return from the Stopwatch Mode to the Timekeeping Mode at any
time by pressing B.
The stopwatch lets you measure elapsed time.
• When you enter the Stopwatch Mode, the
stopwatch second hand and the stopwatch
minute hand move to 0.
• The display range of the stopwatch is 59
minutes, 59 seconds.
• The stopwatch continues to run, restarting from
zero after it reaches its limit, until you stop it.
• All of the operations in this section are
performed in the Stopwatch Mode.
Adjusting the Home Positions
If the time and date settings are wrong even after the time calibration signal is
received normally, use the following procedure to adjust their home positions.
To adjust the home positions
Second hand Day hand
Hour hand
24-hour hand
Minute hand
Day of the
week hand
1. In the Timekeeping Mode, hold down A and
B for five seconds.
This enters the Home Position Adjustment
Mode, which you can use to check and adjust
the home position of the second hand.
• The second hand is in the proper home
position if it moves to 12 o’clock. If it
doesn’t, press C to move it to 12 o’clock.
2. After confirming that the second hand is at the
proper home position, press B.
This will switch to hour hand and minute hand
home position adjustment.
• The hour hand and minute hand are at their
proper home positions if they both move to
12 o’clock, and if the 24-hour hand is
pointing at hour 24. If the hands are not
positioned correctly, use C (+) to move all
three hands to their proper home positions.
3. After confirming that the hour hand and
minute hand are both at their proper home
positions, press B.
This will switch to day hand and day of the
week hand home position adjustment.
• The day hand is at its proper home position
if it moves to 12 o’clock. If it doesn’t, use
C (+) to move the hand to 12 o’clock.
• The day of the week hand is at its proper
position if it moves to 12 o’clock (the
position where the ▼ mark is located). If it
doesn’t, use A (+) to move the hand to 12
o’clock.
4. Press B to return to the Timekeeping Mode.
• After you complete the home position adjustment procedure, place the
watch in a location that allows good time calibration signal reception, and
then perform a manual receive operation. See “To perform manual receive”
for more information.
Timekeeping
Day hand
Minute handHour hand
Second
hand
Day of the
week hand
24-hour hand
To set the time and date manually
Day hand
Minute handHour hand
Second
hand
24-hour hand
• The watch interprets any manual change of the time setting in step 6 by
Day of the
week hand
24-hour hand
Day hand
Day of the
week hand
Minute handHour hand
Day hand
more than 30 minutes or manual switching between Standard Time and
Daylight Saving time in step 2 as a change to another time zone. At this
time the watch turn off auto receive automatically. If you successfully
perform a manual receive operation after auto receive is turned off
automatically by one of the events described above, the watch will turn
auto receive back on automatically.
Use the Timekeeping Mode to set and view the
current time and date, and to switch between
Standard Time and Daylight Saving Time
(summer time).
• Daylight Saving Time (summer time) advances
the time setting by one hour from Standard
Time. Remember that not all countries or even
local areas use Daylight Saving Time.
• The watch interprets any manual change of the
time setting by more than 30 minutes or
manual switching between Standard Time and
Daylight Saving time as a change to another
time zone. At this time the watch turn off auto
receive automatically.
• If you successfully perform a manual receive
operation after auto receive is turned off
automatically by one of the events described
above, the watch will turn auto receive back on
automatically.
1. In the Timekeeping Mode, hold down B for
about five seconds until the day of the week
hand moves to SET. This is the Daylight
Saving Time (DST) setting mode.
• At this time the day hand will move to 12
o’clock.
2. Use C to select the setting you want by
moving the second hand to ON (Daylight
Saving Time) or OFF (Standard Time).
3. After selecting the setting you want, press B.
• If you changed the on/off setting in step 2
above, pressing B in step 3 will return to
the Timekeeping Mode.
• If you did not change the on/off setting in
step 2 above, pressing B in step 3 will
advance to the day/day of the week setting
mode. This is indicated by the day of the
week hand and day hand moving to their
current settings.
• If you want to change the DST on/off setting
and the day, day of the week, and/or time
setting, you need to change the DST on/off
setting first, and then restart the above
procedure from step 1 to change the day,
day of the week, and/or time setting.
4. Use A and C to change the day of the week
and date setting.
• Each press of A advances to the next day
of the week.
• Each press of C advances to the next day.
5. After selecting the settings you want, press B
to enter time setting mode.
• This will cause the day hand to move to
A (AM) or P (PM).
6. Use C to set the time.
• Each press of C advances to the time
setting by one minute.
• Holding down C will advance the time
setting at high speed. High speed hand
movement will continue until you press any
button to stop it. It also stops automatically
after the time advances 24 hours.
7. After setting the time, press B to exit the
setting mode and return to the Timekeeping
Mode.
3
Operation Guide 5019
Power Supply
This watch is equipped with a solar cell and a special rechargeable battery
(secondary battery) that is charged by the electrical power produced by the
solar cell. The illustration shown below shows how you should position the
watch for charging.
Example: Orient the watch so its face is
• The illustration shows how to position a
• Note that charging efficiency drops when
• You should try to keep the watch outside
Important!
• Storing the watch for long periods in an area where there is no light or
• This watch uses a special rechargeable battery to store power produced by
• The special rechargeable (secondary) battery used by your watch is not
• The current time and all other settings return to their initial factory defaults
• Keep the watch in an area normally exposed to bright light when storing it
Battery Power Levels
The movement of the analog hands indicates the current battery power level.
• When battery power is at Level 2, time calibration signal reception is
• At Level 3, all functions are disabled and settings return to their initial
Charging Precautions
Certain charging conditions can cause the watch to become very hot. Avoid
leaving the watch in the areas described below whenever charging its
rechargeable battery.
Warning!
Leaving the watch in bright light to charge its rechargeable battery can
cause it to become quite hot. Take care when handling the watch to
avoid burn injury. The watch can become particularly hot when exposed
to the following conditions for long periods.
• On the dashboard of a car parked in direct sunlight
• Too close to an incandescent lamp
• Under direct sunlight
pointing at a light source.
watch with a resin band.
any part of the solar cell is blocked by
clothing, etc.
of your sleeve as much as possible. Even
if the face of the watch is blocked from
light only partially, charging will be
reduced significantly.
wearing it in such a way that it is blocked from exposure to light can cause
rechargeable battery power to run down. Make sure that the watch is
exposed to bright light whenever possible.
the solar cell, so regular battery replacement is not required. However, after
very long use, the rechargeable battery may lose its ability to achieve a full
charge. If you experience problems getting the special rechargeable battery
to charge fully, contact your dealer or CASIO distributor about having it
replaced.
intended to be removed or replaced by you. Use of a rechargeable battery
other than the special one specified for this watch can damage the watch.
whenever battery power drops to Level 3 and when you have the battery
replaced.
for long periods. This helps to keep the rechargeable battery from going
dead.
Hand Movement
Hour
hand
disabled.
factory defaults. Functions are enabled once again after the rechargeable
battery is charged, but you need to set the time and date, after the battery
reaches Level 1 from Level 3.
Minute
hand
Level
Normal.
1
• All hands, except
2
• The hour and
All hands stopped.
3
for the hour and
minute hands,
stopped.
minute hands
continue to operate
until the next 12:00
hour (noon or
midnight) is reached.
Solar cell
Function Status
All functions
enabled.
All functions
disabled, except for
analog timekeeping
and stopwatch.
All functions
disabled.
Charging Guide
After a full charge, timekeeping remains enabled for up to about four 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
• 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
(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)
• The above exposure time values are all for reference only. Actual required
exposure times depend on lighting conditions.
Approximate Exposure Time
Level 3 Level 2 Level 1
Approximate Exposure Time
9 minutes
32 minutes
51 minutes
8 hours
▲
3 hours
9 hours
14 hours
146 hours
▲
110 hours
19 hours
68 hours
– – –
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 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 C button is used to change the hand setting in various setting modes.
In most cases, holding down this button will start high-speed movement of
the applicable hand(s).
• High-speed movement of hands will continue until you press any button, or
until the moving hand(s) finishes one complete cycle. One complete cycle
for the hands is 24 hours.
• The watch will not respond to button operations while high-speed hand
movement is being performed. You will be able to perform button operations
again after high-speed operation is stopped.
• High-speed hand movement also is triggered by changing from one mode
to another.
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, 2001 to December 31, 2099. Setting of the date by
the time calibration signal cannot 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), cer tain 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.
▲
4
Operation Guide 5019
Timekeeping
• The year can be set in the range of 2001 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.
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 are actually two sleep state levels: “second hand sleep” and “function
sleep”.
Elapsed Time in Dark
60 to 70 minutes
(second hand sleep)
6 or 7 days
(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.
Second hand only is stopped, all other functions
are enabled.
• All functions, including analog timekeeping,
disabled
• Internal timekeeping maintained
Operation
5
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