Casio 5035 User manual

Operation Guide 5035
1
MO0804-EA
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.
•Be sure to keep all user documentation handy for future reference.
Keep the watch exposed to bright light
The electricity generated by the solar cell of the
watch is stored by a built-in battery. Leaving or
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 blocked only partially from
light, charging will be reduced significantly.
l
l
l
l
l
l
l
l
l
l
l
Bright light
Solar cell
Bright light
Electrical
energy
All
functions
enabled.
LEVEL 1
LEVEL 2
Charge
Solar cell
(Converts light to
electrical power.)
Rechargeable battery
LEVEL 1
LEVEL 2
Some
functions
disabled.
Dis-
charge
Battery charges in the light. Battery discharges in the dark.
•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
result in 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.
•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
Hour hand
Day of the
week hand
Stopwatch
second hand
24-hour
hand
Minute
hand
Date
Second hand
•Depending on your watch’s model number, the printing on its face will look
like that shown either in Figure A or Figure B. All of the illustrations in this
manual use the face shown in Figure A.
•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.
Figure A Figure B
▲
▲
Countdown Timer Mode
Manual Receive Receive Status Check
Home City Change
Timekeeping Mode
Press any button.
Hold down A
for about two seconds.
Hold down A
for about five seconds.
Press A.
Time/Date Adjustment
▲
▲
▲
▲
Press A.
World Time Mode
Alarm Mode Timekeeping Mode
Press C.
Press C.
Stopwatch Mode
Press Bor D.
Press D.
(When the stopwatch
is reset to all zeros.)
Press C.
▲
▲
▲
Press C.
▲
▲
▲
General Guide •Whenever you enter the Timekeeping, Countdown Timer, World Time, or
Alarm Mode, the hands of the watch move to the applicable time for that
mode. Even if the hands are moving, you can press Cto move to another
mode (except for the Stopwatch Mode), if you want. Note, however, that all
other buttons are disabled while the hands are moving.
Radio-controlled Atomic Timekeeping
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).
•Your watch will be able to receive the signal
whenever Beijing (BJS) is selected as its Home
City, and the watch is within range of the
transmitter. The initial factory Home City setting
of the watch is Beijing (BJS), so you will not
need to change the setting if you are in the
same time zone (GMT+8) as Beijing.
•As of November 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.
Transmitter
Long-wave
time
calibration
signal
Watch
•See the information under “Signal Reception Troubleshooting” if you
experience problems with time calibration signal reception.
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.
Current Time Setting
This watch adjusts its time setting automatically in accordance with a time
calibration signal.You can also perform a manual procedure to set the time
and date, when necessary.
•Whenever you need to travel outside of the time zone where Beijing is
located (GMT+8), use the procedure under “To specify your Home City” to
change the watch’s Home City setting as required.
•When using the watch outside the range of the time calibration signal
transmitter, you have to adjust the current time setting manually as
required. See “Timekeeping” for more information about manual time
settings.
•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.

Operation Guide 5035
2
To specify your Home City
1. In the Timekeeping Mode, hold down Afor
about five seconds until the watch beeps
twice.
•The stopwatch second hand will move to the
city code of the currently selected Home
City. This is the city code setting mode.
•The second hand will stop at “0”.*
* Some models show “60”instead of “0”.
2. Use Dto move the stopwatch second hand
to the city code you want to use as your Home
City.
•Each press of Dcauses the stopwatch
second hand to advance clockwise to the
next city code.
•For full information on city codes, see the “City Code Table”.
•If you want the watch to receive the Chinese time calibration signal, you
should select HKG (Hong Kong, GMT+8) as your Home City.
Stopwatch
second hand
•The GMT differential value shown above indicates the time difference in
hours between Greenwich Mean Time and the currently selected city
code.
3. Press Ato return to the Timekeeping Mode.
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.
•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.
Near a
construction
site, airport,
or other
sources of
electrical
noise
Near
household
appliances,
office
equipment,
or a mobile
phone
Inside or
among
buildings
Inside a
vehicle
Near high-
tension
power lines
Among or
behind
mountains
Approximate Reception Range
500 km
Changchun
Shanghai
Hong Kong
Shangqiu
Chengdu
Beijing
1,500 km
•At distances further than about 500 kilometers from the Shangqiu (China)
transmitter, signal reception may not be possible during certain times of
year or times of day. Radio interference may also cause problems with
reception.
•Even when the watch is within the reception range of the transmitter, signal
reception will be impossible if the signal is blocked by mountains or other
geological formations between the watch and signal source.
•Signal reception is affected by weather, atmospheric conditions, and
seasonal changes.
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
•When a calibration time is reached, the watch will receive the calibration
signal only if it is in either the Timekeeping Mode or World Time Mode.
Reception is not performed if a calibration time is reached while you are
configuring settings.
•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
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 Afor
about two seconds until the watch beeps.
3. The stopwatch second hand will move to
READY to indicate that the watch is setting up
for time calibration reception.
•The stopwatch second hand will move to
WORK and stay there while actual reception is
in progress.
•If signal reception is unstable during reception,
the stopwatch second hand may move
between WORK and READY.
•The hour and minute hands continue to keep
time normally.
WORK
READY
•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 stopwatch
second hand will move to Y (YES). Five
seconds later, the hands will move to the
correct time.
Note
•To interrupt a receive operation and return to the Timekeeping Mode, press
any button.
•If reception is not successful, the stopwatch second hand will move to
N (NO). Five seconds later, the stopwatch second hand will resume normal
operation, without any adjustment of the hand setting.
•If the stopwatch second hand is pointing to Y (YES) or N (NO), you can
return to the Timekeeping Mode by pressing A.
YN

Operation Guide 5035
3
Viewing the Latest Signal Reception Results
You can use the procedure below to check whether or not the last signal
receive operation was successful.
To check the latest signal reception results
In the Timekeeping Mode, press A.
•If the watch was able to perform a successful
signal receive operation since midnight, the
stopwatch second hand will move to Y (YES). If
the watch has been unable to receive any
signal successfully, the stopwatch second hand
will move to N (NO).
•The watch will return to the Timekeeping Mode
after five seconds or when you press A.
•The current receive result is cleared when the first auto receive operation is
performed on the following day. This means Y (YES) indicates successful
signal reception since the start of the current day.
YN
•If you adjust the time or date setting manually, the stopwatch second hand
will move to N (NO).
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal
reception.
•You changed the time
setting manually.
•You performed some button
operation during the auto
receive operation.
•The watch is not in the
Timekeeping Mode.
•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.
•The home position of the
hands is off.
The stopwatch
second hand is
pointing at N
(NO).
The time setting
is incorrect
following signal
reception.
•Perform manual signal
receive at night or wait
until the next auto signal
receive operation is
performed.
•Enter the Timekeeping
Mode and try again.
•Check to make sure the
watch is in a location
where it can receive the
signal.
•Enter the Home Position
Adjustment Mode and
adjust the home position.
What you should doProblem Probable Cause
•For further information, see “Important!”under “Time Calibration Signal
Reception”and “Radio-controlled Atomic Timekeeping Precautions”.
Stopwatch
The stopwatch lets you measure elapsed time.
•When you enter the Stopwatch Mode, the
stopwatch 1/20 second hand and the
stopwatch minute hand move to 0.
•You can start elapsed time measurement with
the stopwatch while the watch is in the
Stopwatch Mode or the Timekeeping Mode.
•The display range of the stopwatch is 59
minutes, 59.95 seconds.
•The stopwatch continues to run, restarting from
zero after it reaches its limit, until you stop it.
•You cannot switch to another mode while a
stopwatch elapsed time operation is in
progress.
Stopwatch second hand
Stopwatch 1/20
second hand
Stopwatch
minute hand
To start an elapsed time operation while in the Stopwatch Mode
1. In the Timekeeping Mode, press Dto enter the Stopwatch Mode.
2. In the Stopwatch Mode, press Bto start elapsed time measurement.
3. Press Bto stop elapsed time measurement.
•You can restart and stop elapsed time measurement as many times as
you like by pressing B.
•The 1/20 second hand rotates during the first 60 seconds only, and then
stops. When elapsed timing is stopped (by pressing B), the 1/20
second hand jumps to the 1/20 second indication (which is kept
internally).
4. Check the elapsed time.
•After you are finished measuring elapsed time, press Dto reset the
stopwatch to all zeros. The stopwatch will reset to all zeros even if you
press Dwhile elapsed time measurement is in progress.
•To return to the Timekeeping Mode, press Dwhile the stopwatch is reset
to all zeros.
To start an elapsed time operation while in the Timekeeping Mode
1. In the Timekeeping Mode, press Bto start elapsed time measurement.
•After pressing Bin the Timekeeping Mode, elapsed time measurement
will not start for about one second.
•The elapsed time operation will not start if you press Bin the
Timekeeping Mode while either of the following conditions exists.
While an alarm is sounding
While the watch is changing from one date to the next (at midnight)
2. Press Bto stop elapsed time measurement.
•You can restart and stop elapsed time measurement as many times as
you like by pressing B.
•The 1/20 second hand rotates during the first 60 seconds only, and then
stops. When elapsed time measurement is stopped (by pressing B), the
1/20 second hand jumps to the 1/20 second indication (which is kept
internally).
3. Check the elapsed time.
•After you are finished measuring elapsed time, press Dto reset the
stopwatch to all zeros. The stopwatch will reset to all zeros even if you
press Dwhile elapsed time measurement is in progress.
•To return to the Timekeeping Mode, press Dwhile the stopwatch is reset
to all zeros.
Countdown Timer
You can set the countdown timer within a range
of one to 60 minutes. An alarm sounds when the
countdown reaches zero.
•Whenever you enter the Countdown Timer
Mode, the day of the week hand initially will
move to the TMR position. After about one
second, the day of the week hand will move to
the countdown start time (minutes) and stop
there.
•In the Countdown Timer Mode, the timekeeping
second hand points straight down (6 o’clock
position).
•When you enter the Countdown Time Mode,
the day of the week hand initially will point to
countdown start time that was set the last time
the Countdown Timer Mode was exited.
Day of the week hand
(indicates minutes)
Second hand
Timekeeping
second hand
•The initial factory default setting for the countdown start time is 60 minutes.
The day of the week hand points to 0(or 60) when the countdown start time
is 60 minutes.
•All of the operations in this section are performed in the Countdown Timer
Mode.
To set the countdown start time
While the day of the week hand is stopped at the current countdown start
time in the Countdown Timer Mode, press Ato advance the hand by one
minute. Keep pressing Auntil the hand is at the start time you want.
•Holding down Aat this time will move the hand at high speed.
•If the day of the week hand does not move when you press A, it may
mean that the watch is not indicating a countdown start time. If this
happens, refer to “To use the countdown timer”and return to the countdown
start time.
•To set a countdown start time of 60 minutes, move the day of the week
hand to 0(or 60).
To use the countdown timer
Press Bwhile in the Countdown Timer Mode to start the countdown timer.
•When the end of the countdown is reached, the alarm sounds for 10
seconds or until you stop it by pressing any button. The countdown time is
reset automatically to its starting value after the alarm stops.
•Press Bwhile a countdown operation is in progress to pause it. Press B
again to resume the countdown.
•To stop a countdown operation completely, first pause it (by pressing B),
and then press D. This returns the countdown time to its starting value.
•You will not be able to switch to another mode while a countdown is in
progress.
World Time
The World Time Mode shows you the current
time in 27 cities (29 time zones) around the
world. A simple operation swaps your Home City
with the currently selected World Time city.
•When you enter the World Time Mode, the hour
and minute hands move to the current time in
the currently selected World Time city.
•If the current time shown for a city is wrong,
check your Home City settings and make the
necessary changes.
•All of the operations in this section are
performed in the World Time Mode.
Current time (hour) in the
currently selected World
Time city
Minutes
Seconds
City code

Operation Guide 5035
4
To view the time in another city
In the World Time Mode, use Dto move the stopwatch second hand to the
city code of the city you want to select as the World Time city.
•The hour hand, minute hand, and date display will change automatically to
the applicable settings for the currently selected city code.
•The day of the week hand shows whether or not Daylight Saving Time
(summer time) is turned off for the currently selected city code.
•All buttons (except for Cfor changing modes) are disabled while the hands
and date display are changing.
•The watch will beep if the city code you select is your current Home City.
•For full information on city codes, see the “City Code Table”.
To toggle a city code time between Standard Time and Daylight
Saving Time
1. In the World Time Mode, use Dto select the
city code whose Standard Time/Daylight
Saving Time setting you want to change.
2. Hold down Afor about three seconds until
the watch beeps. This will cause the day of the
week hand to toggle between ON (Daylight
Saving Time) and OFF (Standard Time).
•Note that you cannot switch between Standard
Time and Daylight Saving Time while GMT is
selected as the city code.
•Note that the Standard Time/Daylight Saving
Time setting affects only the currently
displayed city code. Other city codes are not
affected.
•The Standard Time/Daylight Saving Time
setting of your Home City can be changed in
the Timekeeping Mode only. See “To set the
time and date manually”for more information.
Hold down
Afor three
seconds.
▲
▲
Swapping your Home City and World Time City
You can use the procedure below to swap your Home City and World Time
city. This changes your Home City to your World Time city, and your World
Time city to your Home City. This capability can come in handy when you
frequently travel between two cities in different time zones.
•If your current World Time city supports receipt of a time calibration signal,
making it your Home City enables calibration signal reception.
To swap your Home City and World Time city
1. In the World Time Mode, use Dto select the World Time city you want.
2. Hold down Bfor about three seconds until the watch beeps twice.
•This will make the World Time city (which you selected in step 1), your
Home City. At the same time, it changes the Home City you had selected
prior to step 2 your World Time city.
•After swapping the Home City and World Time city, the watch stays in the
World Time Mode with the city that was selected as the Home City prior to
step 2 now displayed as the World Time city.
Alarm
When the alarm is turned on, the alarm sounds
when the alarm time is reached.
•The day of the week hand points to AL while
the watch is in the Alarm Mode. The stopwatch
second hand points to the current alarm on
(ON)/off (OFF) setting, while the hour, minute,
and 24-hour hands indicate the current alarm
time setting.
•All of the operations in this section are
performed in the Alarm Mode.
To set an alarm time
1. In the Alarm Mode, hold down Afor about
three seconds until the watch beeps. This
indicates it is in the setting mode.
•The stopwatch second hand will move to
ON (alarm on) at this time.
Mode
indicator
Alarm time
(minute)
Alarm time (hour)
2. Use D(+) and B(–) to change the alarm time setting.
•Each press of either button moves the hands one-minute.
3. After setting the alarm time, press Ato exit the setting mode.
•Setting the alarm time causes the alarm to turn on automatically.
•As you set the alarm time, take care to ensure that the 24-hour hand also is
at the correct position.
Alarm Operation
The alarm tone sounds at the preset time for 10 seconds, regardless of the
mode the watch is in.
•Alarm operations are performed in accordance with the Timekeeping Mode
time.
•Pressing any button stops the alarm tone operation.
To toggle an alarm on and off
In the Alarm Mode, press Ato toggle the alarm ON and OFF.
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
1. In the Timekeeping Mode, as you hold down
A, hold down Cfor about three seconds
until the watch beeps.
•This indicates that the watch is in the time
and date home position adjustment mode.
•First is timekeeping second hand and
stopwatch second hand home position
adjustment.
•If the timekeeping second hand moves to
“0”, it is in the correct home position. If it
doesn’t, use Dto move the timekeeping
second hand to “0”.
Stopwatch second hand
Correct timekeeping second
hand and stopwatch second
hand home positions
Timekeeping
second hand
•The stopwatch second hand is also in the
proper home position if it moves to 12
o’clock. If it doesn’t, press Bto move it to
12 o’clock.
2. After confirming that the timekeeping second
hand and stopwatch second hand are both at
the proper home positions, press C.
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 D(+) and B(–)
to move all three hands to their proper home
positions.
•The 24-hour hand moves in accordance
with the hour, minute, and second settings.
As you set the time, take care to ensure that
the 24-hour hand also is at the correct
position.
Minute hand Hour hand
24-hour hand
Correct hour and minute
hand home position
3. After confirming that the hour and minute
hands are in the correct home position, press
C. This will advance to day of the week hand
home position adjustment.
•The day of the week hand is in the correct
home position if it is pointing at 0(or 60). If it
isn’t, use D(+) and B(–) to move the
hand to 0(or 60).
4. After confirming that the day of the week hand
is in the correct home position, press C. This
will advance to date home position
adjustment.
•The date is in the correct home position if it
shows “1”. If it doesn’t, use D(+) and B
(–) to change the date to “1”.
•Pressing Chere will return to the
timekeeping second hand and stopwatch
second hand home position adjustment in
step 1 of this procedure.
Date
Day of the week hand
Correct day of the week
hand home position
Correct date home position
5. Press Ato 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
Use the Timekeeping Mode to set and view the
current time and date. This section also explains
how to set the current date and time manually.
•All of the operations in this section are
performed in the Timekeeping Mode.
To set the time and date manually
1. In the Timekeeping Mode, hold down Afor
about five seconds until the watch beeps twice.
•The stopwatch second hand will move to the
city code of the currently selected Home
City. This is the city code setting mode.
•The second hand will stop at “0”.*
* Some models show “60”instead of “0”.
2. Use Dto change the Home City setting.
•For full information on city codes, see the
“City Code Table”.
Hour hand
Timekeeping
second hand
Minute
hand
24-hour
hand
Day of the
week hand
Stopwatch
second hand
Date
3. Use Bto toggle the DST setting on (ON) and off (OFF).
•Even after you change the DST setting, you can still use Dto select a
different Home City code if you want.
4. After the Home City and DST settings are the way you want, press C.
•This will cause the watch to beep, and the stopwatch second hand and
day of the week hand to move to their 12 o’clock positions. This is the
time setting mode.

Operation Guide 5035
5
5. Use D(+) and B(–) to change the time (hour and minute) setting.
•As you set the time, take care to ensure that the 24-hour hand also is at
the correct position.
6. After the time setting is the way you want,
press C.
•This will cause the watch to beep and
change to the year setting mode.
7. Use Dand Bto change the year setting
declination value.
•Each press of Bwill move the stopwatch
second hand and change the year setting in
10-year units.
Setting the year (10-year units)
00 10
30
40
50
70
80
90
20
Stopwatch
second
hand
60
•Each press of Dwill move the timekeeping
second hand and change the year setting in
one -year units.
8. After the year setting is the way you want,
press C.
•This will cause the watch to beep and
change to the month setting mode.
9. Use Dto move the stopwatch second hand
to the month setting you want.
10.After the month setting is the way you want,
press C.
•This will cause the watch to beep and
change to the date setting mode.
Dec Jan
Feb
Mar
Apr
May
Jun
Jul
Sep
Oct
Nov
Aug
Setting the year
(1-year units)
Setting the month
01
2
3
4
5
6
7
8
9
11.Use D(+) and B(–) to change the date
setting.
•Pressing Cwill return to the time setting
mode.
12.After all the settings are the way you want,
press Ato return to the Timekeeping Mode.
•Pressing Aany time during the above
procedure will return to the Timekeeping Mode,
where the timekeeping second hand will
resume timekeeping from second 0.
•The day of the week is displayed automatically
in accordance with the date (year, month, and
day) settings.
Date
Setting the date
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
pointing at a light source.
•The illustration shows how to position a
watch with a resin band.
•Note that charging efficiency drops when
any part of the solar cell is blocked by
clothing, etc.
•You should try to keep the watch outside
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.
Solar cell
Important!
•Storing the watch for long periods in an area where there is no light or
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.
•This watch uses a special rechargeable battery to store power produced by
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.
•The special rechargeable (secondary) battery used by your watch is not
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.
•The current time and all other settings return to their initial factory defaults
whenever battery power drops to Level 3 and when you have the battery
replaced.
•Keep the watch in an area normally exposed to bright light when storing it
for long periods. This helps to keep the rechargeable battery from going
dead.
Battery Power Levels
The movement of the analog hands indicates the current battery power level.
•The second hand jumping every two seconds (Level 2) indicates that
battery power is quite low. Expose the watch to light as soon as possible to
charge the battery.
Hand Movement
Normal.
•Second hand jumps
every 2 seconds.
•Date changes to
home position.
•Second hand
stopped.
•Hour and minute
hands stopped at
12 o’clock.
Level
1
2
3
Function Status
All functions
enabled.
Beeper and time
calibration signal
reception disabled.
All functions
disabled.
Jumps two seconds
•When battery power is at Level 2, time calibration signal reception is
disabled.
•At Level 3, all functions are disabled and settings return to their initial
factory defaults. The watch will continue to keep time internally for about
one month after the battery drops to Level 3. If you recharge the battery
sufficiently during this period, the analog hands will move automatically to
the correct setting and normal timekeeping will resume.
•Alarm operation can cause hand movement to stop due to a sudden
temporary drop in battery power. This does not indicate malfunction, and
normal operation will resume when the watch is exposed to light. Though
hand movement stops, timekeeping continues internally, and the hands will
be adjusted to the correct setting when normal operation returns.
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
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.
•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.
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)
Approximate Exposure Time
8 minutes
30 minutes
48 minutes
8 hours
Recovery Times
The table below shows the amount exposure that is required to take the
battery from one level to the next.
20 hours
73 hours
–––
–––
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)
Approximate Exposure Time
Level 3 Level 2 Level 1
1 hour
2 hours
4 hours
34 hours
Exposure Level
(Brightness)
▲ ▲ ▲
•The above exposure time values are all for reference only. Actual required
exposure times depend on lighting conditions.

Operation Guide 5035
6
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 Dand Bbuttons 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 and Home Time
positions), etc.
•All buttons (except for the Cbutton 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.
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”.
Operation
Second hand only is stopped, all other functions
are enabled.
•All functions, including analog timekeeping,
disabled
•Internal timekeeping maintained
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.
City Code Table
Pago Pago
Honolulu
Anchorage
Los Angeles
Denver
Chicago
New York
Caracas
Rio De Janeiro
London
Paris
City City GMT Other major cities in same time zone
Code
Differential
PPG
HNL
ANC
LAX
DEN
CHI
NYC
CCS*
RIO
–02
–01
GMT
LON
PA R
–11.0
–10.0
–09.0
–08.0
–07.0
–06.0
–05.0
–04.0
–03.0
–02.0
–01.0
+00.0
+01.0
Papeete
Nome
San Francisco, Las Vegas, Vancouver,
Seattle/Tacoma, Dawson City, Tijuana
El Paso, Edmonton, Culiacan
Houston, Dallas/Fort Worth,
New Orleans, Mexico City, Winnipeg
Montreal, Detroit, Miami, Boston,
Panama City, Havana, Lima, Bogota
La Paz, Santiago, Port Of Spain
Sao Paulo, Buenos Aires, Brasilia, Montevideo
Praia
Dublin, Lisbon, Casablanca, Dakar, Abidjan
Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,
Frankfurt, Vienna, Stockholm, Berlin
Athens
Jeddah
Tehran
Dubai
Kabul
Karachi
Delhi
Dhaka
Yangon
Bangkok
Hong Kong
Tokyo
Adelaide
Sydney
Noumea
Wellington
+02.0
+03.0
+03.5
+04.0
+04.5
+05.0
+05.5
+06.0
+06.5
+07.0
+08.0
+09.0
+09.5
+10.0
+11.0
+12.0
Cairo, Jerusalem, Helsinki, Istanbul, Beirut, Damascus,
Cape Town
Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow
Shiraz
Abu Dhabi, Muscat
Male
Mumbai, Kolkata, Colombo
Jakarta, Phnom Penh, Hanoi, Vientiane
Singapore, Kuala Lumpur, Hong Kong, Taipei, Manila,
Perth, Ulaanbaatar
Seoul, Pyongyang
Darwin
Melbourne, Guam, Rabaul
Port Vila
Christchurch, Nadi, Nauru Island
ATH
JED
THR
DXB
KBL
KHI
DEL
DAC
RGN
BKK
HKG
TYO
ADL
SYD
NOU
WLG
•Based on data as of March, 2008.
•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.