Casio 3347 User manual

Operation Guide 3347
1
MO0405-EA
Getting Acquainted
Congratulations upon your selection of this CASIO watch.To get the most out of your
purchase, be sure to carefully read this manual and keep it on hand for later reference
when necessary.
•This watch does not have a time zone that corresponds to the Greenwich
MeanTime differential of –3.5 hours. Because of this, the radio-controlled
timekeeping and WorldTime functions will not display the correct time for
Newfoundland, Canada.
Expose the watch to bright light to charge its batteries before using it.
You can use this watch even as its batteries are being charged by exposure to
bright light.
•Be sure to read“Batteries”of this manual for important information you need
to know when exposing the watch to bright light.
If the digital display of the watch is blank...
If the Power Saving indicator ( ) is flashing on the
display, it means that the display is blank because the
watch’s Power Saving function has turned it off to
conserve power. Power Saving automatically turns off the
display and enters a sleep state whenever your watch is
left for a certain period in an area where it is dark. If the
watch is kept in the dark for a longer period, the analog
hands will also stop moving after a few days.
•The initial factory default setting is Power Saving on.
•The watch will recover from the sleep state if you move
it to a well-lit area, if you press any button, or if you
angle the watch towards your face for reading.
•See “Power Saving Function”for more information.
Power saving indicator
AboutThis Manual •Depending on the model of your watch, display text
appears either as dark figures on a light background, or
light figures on a dark background.All sample displays
in this manual are shown using dark figures on a light
background.
•Button operations are indicated using the letters shown
in the illustration.
•Each section of this manual provides you with the
information you need to perform operations in each
mode. Further details and technical information can be
found in the “Reference” section.
(Light)
(Light)
▲
▲
▲
Alarm Mode CountdownTimer Mode
Stopwatch Mode
▲
General Guide
•Press Cto change from mode to mode.
•In any mode, press Lto illuminate the display.
Timekeeping Mode Press C.
▲
▲
World Time Mode
Hand Setting Mode
Radio-controlled AtomicTimekeeping
This watch receives a time calibration signal and updates
its time setting accordingly.The time calibration signal
includes both Standard Time and Daylight Saving Time
(summer time) data.
•This watch is designed to pick up the time calibration
signal transmitted in the United States (Fort Collins,
Colorado).
•The U.S. time calibration signal can be picked up by the
watch while in North America*.
*The term “North America” in this manual refers to the
area that consists of Canada, the continental United
States, and Mexico.
Day of week
Minute hand
Hour hand
Seconds
CurrentTime Setting
This watch automatically adjusts its time setting in accordance with a time calibration
signal.You can also perform a manual procedure to set the time and date, when
necessary.
•The first thing you should do after purchasing this watch is to set your Home City,
which is the city where you will normally use the watch.For more information, see
“To set your Home City” below.
•When using the watch outside the ranges of the U.S. time signal transmitter, you
have to adjust the current time setting manually as required. See “Timekeeping” for
more information about manual time setting.
•The analog time of this watch is synchronized with the digital time. Because of this,
the analog time setting is automatically adjusted whenever you change the digital
setting.See “Analog Timekeeping” for more information.
To set your Home City
1. In the Timekeeping Mode, hold down Auntil the city
code starts to flash, which indicates the setting screen.
2. Use D(east) and B(west) to scroll through the city
codes until the one you want to use as your Home City
is displayed.
•The following are the city codes for major cities in
North America.
LAX:Los Angeles, San Francisco, Las Vegas,
Seattle, Vancouver,Tijuana
DEN:Denver, El Paso, Edmonton, Culiacan
CHI:Chicago, Houston, Dallas/Fort Worth, New
Orleans, Winnipeg, Mexico City
NYC:New York, Detroit, Miami, Boston, Montreal
•Note that this watch does not have a city code that
corresponds to Newfoundland.
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City code
3. Press Ato exit the setting screen.
•Normally, your watch should show the correct time as soon as you select your Home
City Code.If it does not, it should adjust automatically after the next auto receive (in
the middle of the night).You can also perform manual receive or you can set the time
manually.
•If you are in an area that does not use Daylight SavingTime (summer time), turn off
the DST setting.
To display the digital time and last signal screen
•In the Timekeeping Mode, press Bto cycle through the digital time screens as
shown below.
•In the Timekeeping Mode, press Dto display the last signal screen.The last signal
screen shows the date and time of the last successful time calibration signal
reception.
▲
Press B.
Day
Day of week
Seconds
Month. Day
Seconds Hour:
Minutes
PM indicator
▲
▲
Press D.
Last Signal
Screen
Reception date
Seconds Day of
week Reception time
▲
BB
B
DST indicator
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 automatically picks up the time calibration signal five
times a day at 0:00 a.m., 1:00 a.m., 2:00 a.m., 3:00 a.m., and 4:00 a.m.For more
information, see “About Auto Receive”.
•Manual Receive
Manual receive lets you start a time calibration signal reception 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.
Make sure there are no metal objects nearby.
•The watch should not be on its side or facing the wrong way.
Resin Band Metal Band

Operation Guide 3347
2
Probable Cause
•The watch is not in the Timekeeping
Mode.
•Your current Home City is not one of the
following city codes:LAX, DEN,
CHI, or NYC.
•You changed the time setting manually.
•The watch was not in theTimekeeping
or World Time Mode, or you were
performing some button operation
during the auto receive.
•Even if reception is successful, the
Level 3 receiving indicator disappears
every day at 3 a.m.
•Time data (hour, minutes, seconds) only
was received during the last reception.
The Level 3 receiving indicator appears
only when time data and date data
(year, month, day) are both received.
•If the time is one hour off, the DST
setting may be incorrect.
•The Home City code setting is not
correct for the area where you are using
the watch.
•Proper signal reception can be difficult or even impossible under the conditions
listed below.
•Signal reception is normally better at night than during the day.
•Time calibration signal reception takes from two to six minutes, but in some cases it
can take as long as 12 minutes.Take care that you do not perform any button
operations or move the watch during this time.
Inside or
among
buildings
Inside a
vehicle Near household
appliances,
office
equipment,
or a mobile
phone
Near a
construction
site, airport, or
other sources
of electrical
noise
Near high-
tension
power lines
Among or
behind
mountains
•Under good reception conditions, signal reception is possible within a radius of
about 2,000 miles (3,000 kilometers) from the Fort Collins transmitter.
•At distances further than about 600 miles (1,000 kilometers) from the Fort Collins
transmitter, signal reception may not be possible during certain times of year or
times of day. Radio interferance may also cause problems with reception.
•See the information under “Signal ReceptionTroubleshooting” if you experience
problems with time calibration signal reception.
2,000 miles
Fort Collins
600 miles
About Auto Receive
When auto receive is turned on, the watch automatically starts to receive the time
calibration signal when the time in theTimekeeping Mode reaches 0:00 a.m., 1:00
a.m., 2:00 a.m., 3:00 a.m., and 4:00 a.m. each day (calibration times).The watch will
also perform an additional auto receive at 5:00 a.m.if none of the regularly scheduled
auto receive operations are successful.
Note
•Auto receive is performed only if the watch is in theTimekeeping Mode or World
Time Mode when one of the calibration times is reached.It is not performed if a
calibration time is reached while an alarm is sounding, or while you are configuring
settings (while settings are flashing on the display).
•Auto receipt of the calibration signal is designed to be performed early in the
morning, while you sleep (provided that theTimekeeping 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 easily receive the signal.
•When auto receive is turned on, the watch receives the calibration signal for two to
six minutes everyday when the time in the Timekeeping Mode reaches each of the
five calibration times. Do not perform any button operation within six minutes before
or after any of the five calibration times.Doing so can interfere with correct
calibration.
•Remember that reception of the calibration signal depends on the time kept in the
digital display. Reception will be performed whenever the display shows one of the
five calibration times, regardless of whether or not the displayed time is actually the
correct time.
•When two, three, four, or five receptions are successful, the watch uses the data of
the last reception for calibration.When only one reception is successful, the watch
uses the data of the successful reception.
About the Receiving Indicator
The receiving indicator shows the strength of the calibration signal being received.For
best reception, be sure to keep the watch in a location where signal strength is
strongest.
•Even in an area where signal strength is strong, it takes about 10 seconds for signal
reception to stabilize enough for the receiving indicator to indicate signal strength.
•Use the receiving indicator as a guide for checking signal strength and for finding the
best location for the watch during signal reception.
Receiving indicator
Weak Strong
(Level 0) (Level 3)
•The Level 3 receiving indicator remains on the display in all modes following
reception of the time calibration signal and calibration of the watch’s time setting.
The Level 3 receiving indicator is not displayed if signal reception was unsuccessful
or after manual adjustment of the current time setting.
•The Level 3 receiving indicator indicates that at least one of the five calibration
signal receive operations was successful. Note, however, that the Level 3 receiving
indicator is cleared from the display at 3:00 a.m.each day.
To perform manual receive
1.Place the watch on a stable surface so its top (12
o’clock side) is facing towards a window.
2.In the Timekeeping Mode, hold down Dfor about two
seconds until the watch beeps.
3.After you release D, the display will alternate between
the current time and date, and the letters RC!. This
indicates that signal reception is in progress.
Receiving indicator
•Time calibration signal reception normally takes from two to six minutes.Take care
that you do not perform any button operations or move the watch during this time.
•After signal reception is complete, the display of the watch changes to the last signal
screen.
Note
•To interrupt a reception and return to the Timekeeping Mode, press D.
•If reception is unsuccessful, the message ERR appears on the display for about
one or two minutes.After that, the watch returns to the Timekeeping Mode.
•You can also change from the last signal or ERR screen to the normal timekeeping
screen by pressing D.
To turn auto receive on and off
1.In the Timekeeping Mode, press Dto display the last
signal screen.
•
The watch will automatically return to theTimekeeping
Mode if you do not perform any button operation for two
or three minutes after displaying the last signal screen.
2.Hold down Auntil the current auto receive setting
flashes on the display. This is the setting screen.
•If the auto receive setting does not appear when you
hold down A, it means that the city code currently
selected for the Home City is for an area that does not
support calibration signal reception.You cannot turn
auto receive on or off in this case.
3.
Use B and D to turn auto receive on (ON) or off (OFF).
4. Press Ato exit the setting screen.
•To return to the Timekeeping Mode from the last signal screen, press D.
•For information about city codes that support signal reception, see “To set your
Home City”.
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On/Off status
Problem
Cannot perform
manual receive.
Auto receive is
turned on, but
the Level 3
receiving
indicator does
not appear on
the display.
What you should do
•Enter the Timekeeping Mode
and try again.
•Select LAX, DEN, CHI, or
NYC as your Home City.
•Perform manual receive or
wait until the next auto signal
receive is performed.
•Check to make sure the
watch is in a location where it
can receive the signal.
Signal ReceptionTroubleshooting
Check the following points whenever you experience problems with signal reception.
Time setting is
incorrect
following signal
reception.
•Change the DST setting to
Auto DST.
•Select the correct Home City
code.
•For further information, see “Important!” under “Time Calibration Signal Reception”
and “Radio-controlled AtomicTimekeeping Precautions”.
World Time
The World Time Mode digitally displays the current time in
30 cities (29 time zones) around the world.
•Pressing Ain the World Time Mode causes the
applicable city code to appear on the digital display for
about one second.
•If the current time shown for a city is wrong, check your
Home City time settings and make the necessary
changes.
•The watch will perform a signal reception even if it is in
the World Time Mode when a calibration time is
reached.If this happens, the World Time Mode time
settings will be adjusted in accordance with the
Timekeeping Mode’s Home City time.
•All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
City code
Current
time in
selected
city
Mode indicator
To view the time in another city
While in the World Time Mode, press Dto scroll through the city codes (time zones)
to the east or Bto scroll to the west.
•For full information on city codes, see the “City CodeTable”.
To toggle a city code time between StandardTime and Daylight SavingTime
1.In the WorldTime Mode, use Band Dto display the
city code (time zone) whose Standard Time/Daylight
Saving Time setting you want to change.
•Pressing Ain the World Time Mode causes the
applicable city code to appear on the digital display for
about one second.
2.Hold down Ato toggle Daylight SavingTime (DST
indicator displayed) and StandardTime (DST indicator
not displayed).
DST indicator
•Note that you cannot use the WorldTime Mode to change the DST setting of the
Home City code you currently have selected in the Timekeeping Mode. See “To
change the Daylight Saving Time (summer time) setting” for information about
turning the Home City code DST setting on and off.
•Note that you cannot switch between StandardTime and Daylight Saving Time while
GMT is selected as the city code.
•The DST indicator will appear on the display whenever you display a city code for
which Daylight Saving Time is turned on.
•Note that the DST/Standard Time setting affects only the currently displayed city
code.Other city codes are not affected.

Operation Guide 3347
3
Alarms
You can set five independent daily alarms.When an alarm
is turned on, the alarm tone sounds when the alarm time
is reached.
You can also turn on an Hourly Time Signal that causes
the watch to beep twice every hour on the hour.
•The alarm number (A1 through A5) indicates an alarm
screen.00 is shown for the alarm number when the
Hourly Time Signal screen is on the display.
•All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
Mode indicator
Alarm number
Alarm time
(Hour : Minutes)
To set an alarm time
1.In the Alarm Mode, use Dto scroll through the alarm
screens until the one whose time you want to set is
displayed.
2.Hold down Auntil the hour digits of the alarm time
start to flash, which indicates the setting screen.
•This automatically turns on the alarm.
3. Press Cto move the flashing between the hour and minute settings.
4. While a setting is flashing, use D(+) and B(–) to change it.
•When setting the alarm time using the 12-hour format, take care to set the time
correctly as a.m.(no indicator) or p.m. ( indicator).
5. Press Ato exit the setting screen.
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A1 A2 A3
00 A5 A4
Alarm on indicator
Alarm Operation
The alarm sounds in all modes at the preset time for about 10 seconds, or until you
stop it by pressing any button.
To test the alarm
In the Alarm Mode, hold down Bto sound the alarm.
To turn an alarm and the HourlyTime Signal on and off
1. In the Alarm Mode, use Dto select an alarm or the Hourly Time Signal.
2. When the alarm or the Hourly Time Signal you want to set is selected, press Bto
turn it on and off.
Indicates alarm is ON.
Indicates Hourly Time Signal is ON.
•The alarm on indicator ( ) and the Hourly Time Signal on indicator ( ) are shown
on the display in all modes while these functions are turned on.
•If any alarm is on, the alarm on indicator is shown on the display in all modes.
CountdownTimer
You can set the countdown timer within a range of one to
60 minutes.An alarm sounds when the countdown
reaches zero.
•You can also select auto-repeat, which automatically
restarts the countdown from the original value you set
whenever zero is reached.
•The left display window normally shows the 1/10 second
count.When auto-repeat is turned on, however, it shows
the current repeat count.
•All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C.
Minutes Seconds
1/10 second
Mode indicator
To set the countdown start time
1. While the countdown start time is on the display in the CountdownTimer Mode,
hold down Auntil the current countdown start time starts to flash, which indicates
the setting screen.
•If the countdown start time is not displayed, use the procedure under “To use the
countdown timer” to display it.
2. Press Cto move the flashing in the sequence shown below to select other
settings.
3. While a setting is flashing, use D(+) and B(–) to change it.
•See “To turn auto-repeat on and off” below for details on the auto-repeat setting.
4. Press Ato exit the setting screen.
Minutes Auto-
repeat
To use the countdown timer
Press Dwhile in the Countdown Timer Mode to start the countdown timer.
•When the end of the countdown is reached and auto-repeat is turned off, the alarm
sounds for 10 seconds or until you stop it by pressing any button.The countdown
time is automatically reset to its starting value after the alarm stops.
•Press Dwhile a countdown operation is in progress to pause it.Press Dagain to
resume the countdown.
•To completely stop a countdown operation, first pause it (by pressing D), and then
press B. This returns the countdown time to its starting value.
To turn auto-repeat on and off
1.While the countdown start time is on the display in the
CountdownTimer Mode, hold down Auntil the current
countdown start time starts to flash, which indicates the
setting screen.
2.Press Cto move the flashing to the auto-repeat
setting.
3.Press Dto turn auto-repeat on ( displayed) and
off ( displayed).
4.Press Ato exit the setting screen.
•When auto-repeat is turned on, the alarm sounds and
countdown starts again whenever the countdown
reaches zero.You can stop the countdown by pressing
D, and manually reset to the countdown start time by
pressingB.
•Auto-repeat timing repeats up to nine times.
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Number of repeats
Stopwatch
The stopwatch lets you measure elapsed time, split times,
and two finishes.
•The display range of the stopwatch is 99 minutes, 59.99
seconds.
•The stopwatch continues to run, restarting from zero
after it reaches its limit, until you stop it.
•Exiting the Stopwatch Mode while a split time is frozen
on the display clears the split time and returns to
elapsed time measurement.
•The stopwatch measurement operation continues even
if you exit the Stopwatch Mode.
•All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C.
1/100 second
Mode indicator
Minutes Seconds
D
Start Stop
ElapsedTime
➤Re-start Clear
D➤Stop
D➤D➤B
SplitTime
D
Start Split
➤Split release Clear
B➤Stop
B➤D➤B
Two Finishes
D
Start Split
➤Stop Clear
B➤Split release
D➤B➤B
First runner
finishes.
Display time of
first runner.
Second runner
finishes. Display time of second runner.
To measure times with the stopwatch
Illumination
An LED (light-emitting diode) and light guide panel
illuminate the digital display for easy reading in the dark.
The watch’s auto light switch automatically illuminates the
display when you angle the watch towards your face.
•The auto light switch must be turned on (indicated by
the auto light switch indicator) for it to operate.
•See “Illumination Precautions” for other important
information.
To turn on illumination manually
In any mode, press Lto illuminate the display.
•You can specify 1.5 seconds or 2.5 seconds as the
illumination duration.See “To set the current digital time
and date manually” for more information.
•The above operation turns on illumination regardless of
the current auto light switch setting.
Auto light switch
indicator
About the Auto Light Switch
Turning on the auto light switch causes the display illumination to turn on whenever
you position your wrist as described below in any mode.Note that this watch features
a “Full Auto Light,” so the auto light switch operates only when available light is below
a certain level.It does not illuminate the display under bright light.
Moving the watch to a position that is parallel to the ground and then tilting it
towards you more than 40 degrees causes illumination to turn on.
•Wear the watch on the outside of your wrist.
Parallel to
ground More than 40°
Warning!
•Always make sure you are in a safe place whenever you are reading the
display of the watch using the auto light switch. Be especially careful when
running or engaged in any other activity that can result in accident or injury.
Also take care that sudden illumination by the auto light switch does not
surprise or distract others around you.
•When you are wearing the watch, make sure that its auto light switch is turned
off before riding on a bicycle, or operating a motorcycle or any other motor
vehicle. Sudden and unintended operation of the auto light switch can create a
distraction, which can result in a traffic accident and serious personal injury.
To turn the auto light switch on and off
In any mode, hold down Lfor about two seconds to toggle the auto light switch on
(the auto light switch indicator displayed) and off (the auto light switch indicator not
displayed).
•The auto light switch is automatically turned off whenever battery power is at Level
4.After battery power recovers to Level 2, you will have to perform the above
procedure to turn the auto light switch back on again.
•The auto light switch indicator is on the display in all modes while the auto light
switch is turned on.
Batteries
This watch is equipped with a solar cell and rechargeable batteries (secondary
batteries) that are 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.
•Normally, you should try to keep the
watch outside of your sleeve as much
as possible.Charging is significantly
reduced if the face is only partially
covered.
Solar cell

Operation Guide 3347
4
Reset the seconds to 00
Toggle the illumination duration
setting between 1.5 seconds ( ) and
2.5 seconds ( )
Change the hour or minutes
Change the year
Change the month or day
Toggle Power Saving on (ON) and
off (OFF)
Press D.
Press B.
Use D(+) and B(–).
Press D.
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 normally exposed to bright light
whenever possible.
•Normally, the rechargeable batteries should not need replacement, but after very
long use over a number of years, they may lose the ability to achieve a full charge.
Should you notice problems with getting the rechargeable batteries to a full charge,
contact your dealer or CASIO distributor about having them replaced.
•The rechargeable batteries should be replaced with CASIO-specified CTL1025
batteries only. Other rechargeable batteries can cause damage to the watch.
•All data stored in memory is deleted, and the current time and all other settings
return to their initial factory defaults whenever battery power drops to Level 4 and if
you should ever need to have the rechargeable batteries replaced.
•Turn on the watch’s Power Saving function and keep it in an area normally exposed
to bright light when storing it for long periods.This helps to keep the rechargeable
batteries from going dead.
Function Status
All functions enabled.
All functions enabled.
Auto and manual receive,
alarm, hourly time signal,
illumination, auto light switch,
and display are disabled.
Though the hands of the watch
do not move, time continues to
be kept internally.
All functions, including timekeeping,
disabled and initialized.
Battery Power Indicator and Recover Indicator
The battery power indicator on the display shows you the current power level of the
rechargeable batteries. Level
1
2
3
4
Battery Power
Indicator
Battery power indicator
Recover indicator
(Charge Soon Alert)
l
l
l
l
l
l
l
l
l
l
l
l
•The flashing charge indicator ( ) at Level 3 tells you that battery power is
very low, and that exposure to bright light for charging is required as soon as
possible.
•At Level 4, all functions are disabled and settings return to their initial factory
defaults. Functions are enabled once again after the rechargeable batteries are
charged, but you need to set the time and date, after the batteries reach Level 3
(indicated by the flashing charge indicator) from Level 4.You will not be able to
configure any of the other settings until the batteries reach Level 2 (no charge
indicator) after dropping to Level 4.
•
Leaving the watch in direct sunlight or some other very strong light source can cause the
battery power indicator to momentarily show a reading that is higher than the actual
battery level.The correct battery power indicator should appear after a few minutes.
•If you use the light or alarms a number of times during a short period, the recover
indicator appears on the display and the following operations become disabled until
battery power recovers.
Illumination
Beeper tone
Coordination between digital and analog timekeeping
Time calibration signal reception
After some time, battery power will recover and the recover indicator will disappear,
indicating that the above functions are enabled again.
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 batteries.
Also note that allowing the watch to become very hot can cause its liquid crystal
display to black out.The appearance of the LCD should become normal again when
the watch returns to a lower temperature.
Warning!
Leaving the watch in bright light to charge its rechargeable batteries 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
Exposure Level (Brightness)
Outdoor Sunlight (50,000 lux)
Sunlight Through a Window (10,000 lux)
DaylightThrough a Window on a Cloudy Day
(5,000 lux)
Indoor Fluorescent Lighting (500 lux)
Approximate ExposureTime
6 minutes
30 minutes
48 minutes
8 hours
•Since these are the specs, we can include all the technical details.
•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
•5 times calibration reception per day
•Stable operation is promoted by frequent charging.
Charging Guide
After a full charge, timekeeping remains enabled for up to about 7 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.
RecoveryTimes
The table below shows the amount exposure that is required to take the batteries from
one level to the next.
•The above exposure time values are all for reference only. Actual required exposure
times depend on lighting conditions.
5 hours
22 hours
36 hours
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
Level 4 Level 3 Level 2 Level 1
▲ ▲ ▲
2 hours
7 hours
11 hours
113 hours
▲
– – –
19 hours
97 hours
157 hours
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.This section
also explains how to manually set the current date and time.
•When setting the time, you can also configure settings for the illumination duration,
the 12/24-hour format, and power saving on/off.
•All of the operations in this section are performed in the Timekeeping Mode, which
you can enter by pressing C.
▲
Press B.
Day
Day of week
Seconds
Month. Day
Hour:
Minutes
PM indicator
▲
▲
Mode indicator
PressD.
Last Signal
Screen
Reception date
Seconds Day of
week Reception
time
▲
BB
B
Seconds
DST indicator
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Setting the DigitalTime and Date Manually
Make sure you select your Home City code before you change the current time and
date settings.World Time Mode times are all displayed in accordance with the
Timekeeping Mode settings.Because of this, World Time Mode times will not be
correct if you do not select the proper Home City code before setting the time and
date in the Timekeeping Mode.
To set the current digital time and date manually
1.In the Timekeeping Mode, hold down Auntil the city
code starts to flash, which indicates the setting screen.
2.Press Cto move the flashing in the sequence shown
below to select other settings.
City code
3. When the setting you want to change is flashing, use Band/or Dto change it as
described below.
Seconds Hour
Minutes
12/24-Hour
Format
Month Year
DST
Day
Power
Saving
City Code
Screen: To do this:
Change the city code
Cycle between Daylight Saving Time
(ON), Standard Time (OFF), and
Auto DST (At)
Toggle between 12-hour (12H) and
24-hour (24H) timekeeping
Do this:
Use D(east) and B(west).
Press D.
Press D.
•See “City CodeTable” for a complete list of available city codes.
•For information about settings other than the time and date, see the following.
Illumination duration: Illumination
Power Saving:Power Saving Function
4. Press Ato exit the setting screen.
•When you exit the setting screen, the analog hands are adjusted automatically to
match the digital time.See “Analog Timekeeping” for more information.
Note
•Auto DST (At) can be selected only while HNL, ANC, LAX, DEN, CHI, or
NYC is selected as the Home City code.For more information, see “Daylight Saving
Time (DST)” below.

Operation Guide 3347
5
When you want to do this:
Move the hand setting
forward 20 seconds
Move the hand setting a short
way forward at high speed
Perform this button operation:
•Press D.
•Holddown D.
•Release Dwhen the hands reach the setting
you want.
Daylight SavingTime (DST)
Daylight Saving Time (summer time) advances the digital time setting by one hour
from Standard Time.Remember that not all countries or even local areas use Daylight
Saving Time.
The time calibration signal transmitted from Fort Collins includes both Standard Time
and DST data.When the Auto DST setting is turned on, the watch switches between
Standard Time and DST (summer time) automatically in accordance with the Fort
Collins signal.
•The default DST setting is Auto DST (At) whenever you select HNL, ANC,
LAX, DEN, CHI, or NYC as your Home City code.
•If you experience problems receiving the time calibration signal in your area, it is
probably best to switch between Standard Time and Daylight Saving Time (summer
time) manually.
To change the Daylight SavingTime (summer time) setting
1. In the Timekeeping Mode, hold down Auntil the city code starts to flash, which
indicates the setting screen.
2. Press Conce and the DST setting screen appears.
3. Use Dto cycle through the DST settings in the sequence shown below.
4.When the setting you want is selected, press Ato exit the setting screen.
•The DST indicator ( ) appears on the display to indicate that Daylight Saving Time
is turned on.
Auto DST (At )DST off (OFF)DST on (ON)
AnalogTimekeeping
The analog time of this watch is synchronized with the digital time.The analog time
setting is adjusted automatically whenever you change the digital time.
Note
•The hands for the analog timepiece move to adjust to a new setting whenever any of
the following occurs.
When you change the digital time setting manually
When the digital time setting is changed by time calibration signal reception
When you change the Home City code and/or DST setting
•If the analog time does not match the digital time for any reason, use the procedure
described under “To adjust the analog time” to match the analog setting to the digital
setting.
•Whenever you need to adjust both the digital and the analog time settings manually,
make sure you adjust the digital setting first.
•Depending on how much the hands have to move in order to adjust to the digital
time, it may take some time before they stop moving.
To adjust the analog time
1.In the Timekeeping Mode, press Cfive times to enter
the Hand Setting Mode.
2.Hold down Auntil the current digital time starts to
flash, which indicates the setting screen.
3. Use Dand Bto adjust the analog setting as
described below.
Mode indicator
Move the hand setting a
long way forward at high
speed
•While holding down Dto move the hands at
high speed, press Bto lock the high-speed
hand movement.
•To stop the hand movement, press any
button.
•Hand movement stops automatically if the hour
hand makes one full (12-hour) revolution.
4. Press Ato exit the setting screen.
•The minute hand will be adjusted slightly to match the seconds when you exit the
setting screen.
•To return to the Timekeeping Mode, press C.
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.
Power Saving Function When turned on, the Power Saving function automatically
puts the watch into a sleep state whenever it 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.
Power saving
indicator
•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 10:59 PM.If the
watch is already in the sleep state when 6:00 AM arrives, however, it will remain in
the sleep state.
ElapsedTime in Dark
60 to 70 minutes
6 or 7 days
Functions
•LCD off
•Alarm, hourly time signal, analog timekeeping and
auto receive enabled
•LCD off, alarm and hourly time signal disabled
•Analog timekeeping stopped at 12 o’clock
•Auto receive disabled
To recover from the sleep state
Perform any one of the following operations.
•Move the watch to a well-lit area.
•Press any button.
•Angle the watch towards your face for reading.
To turn Power Saving on and off
1.In the Timekeeping Mode, hold down Auntil the city
code starts to flash, which indicates the setting screen.
2.Press Cnine times until the Power Saving on/off
screen appears.
3.Press Dto toggle Power Saving on (ON) and off
(OFF).
4.Press Ato exit the setting screen.
•The Power Saving indicator (
) is on the display in
all modes while Power Saving is turned on.
Auto Return Features
•If you leave the watch in the Alarm or Hand Setting Mode for two or three minutes
without performing any operation, it automatically returns to the Timekeeping Mode.
•If you leave the watch with a flashing setting on the display for two or three minutes
without performing any operation, the watch automatically exits the setting screen.
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On/Off status
Scrolling
The Band Dbuttons 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 through the data at high speed.
Initial Screens
When you enter the World Time or Alarm Mode, the data you were viewing when you
last exited the mode appears first.
Radio-controlled AtomicTimekeeping Precautions
•Strong electrostatic charge can result in the wrong time being set.
•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.
•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 automatically update the date and day of the week for the
period January 1, 2000 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), certain signal conditions can limit reception to time
data only.
•Normally, the signal reception date shown by the last signal screen is the date data
included in the received time calibration signal.When only time data is received,
however, the last signal screen shows the date as kept in the Timekeeping Mode at
the time of signal reception.
•If you are in an area where proper time calibration signal reception is impossible, the
watch keeps time within ±15 seconds a month at normal temperature.
•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, DST (summer
time), and auto receive settings.The following are the initial factory defaults for these
settings.
Setting
City code
DST (summer time)
Auto receive
Initial Factory Default
NYC (NewYork)
(Auto switching)
(Auto receive)
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 day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.
•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 batteries replaced or when battery power drops
to Level 4.
•The current time for all city codes in theTimekeeping Mode and World Time Mode is
calculated in accordance with the Greenwich Mean Time (GMT) differential for each
city, based on your Home City time setting.
•GMT differential is calculated by this watch based on Universal Time Coordinated
(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.
12-hour/24-hourTimekeeping Formats
The 12-hour/24-hour timekeeping format you select in theTimekeeping Mode is also
applied in all other modes.
•With the 12-hour format, the PM indicator (
) appears on the display for times in
the range of noon to 11:59 p.m. and no indicator appears for times in the range of
midnight to 11:59 a.m.
•With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
any indicator.
Illumination Precautions
•Illumination may be hard to see when viewed under direct sunlight.
•Illumination automatically turns off whenever an alarm sounds.
•Frequent use of illumination runs down the batteries.

Operation Guide 3347
6
Athens
Cairo
Jerusalem
Jeddah
Tehran
Dubai
Kabul
Karachi
Delhi
Dhaka
Yangon
Bangkok
Hong Kong
Seoul
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
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, Beijing, Taipei, Manila, Perth,
Ulaanbaatar
Pyongyang
Darwin
Melbourne, Guam, Rabaul
Port Vila
Christchurch, Nadi, Nauru Island
ATH
CAI
JRS
JED
THR
DXB
KBL
KHI
DEL
DAC
RGN
BKK
HKG
SEL
TYO
ADL
SYD
NOU
WLG
Auto light switch precautions
•The auto light switch is turned off automatically whenever battery power is at Level 3.
•Wearing the watch on the inside of your wrist, movement of your arm, or vibration of
your arm can cause frequent activation of the auto light switch and illumination of the
display.To avoid running down the batteries, turn off the auto light switch whenever
engaging in activities that might cause frequent illumination of the display.
•Note that wearing the watch under your sleeve while the auto light switch is turned
on can cause frequent illumination of the display and can run down the batteries.
•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 after the preset illumination
duration (see “To set the current digital time and date
manually”), 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 towards 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.
More than 15 degrees
too high
Honolulu
Anchorage
Los Angeles
Denver
Chicago
NewYork
Caracas
Rio De Janeiro
London
Paris
Berlin
City City GMT Other major cities in same time zone
Code Differential
City CodeTable
– – –
HNL
ANC
LAX
DEN
CHI
NYC
CCS
RIO
– – –
– – –
GMT
LON
PAR
BER
–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
Pago Pago
Papeete
Nome
San Francisco, LasVegas, 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
•Based on data as of December 2003.