Casio 3310 User manual

Operation Guide 3310
1
MO0402-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
Mean Time differential of –3.5 hours. Because of this, the radio-controlled
timekeeping and World Time functions will not display the correct time for
Newfoundland, Canada.
Expose the watch to bright light to charge its battery before using it.
You can use this watch even as its battery is being charged by exposure to bright
light.
•Be sure to read“Battery” 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 (
PS
) 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 or if you press any button.
•See “Power Saving Function” for more information.
About This Manual
•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.
General Guide
•Press Cto change from mode to mode.
•In any mode, press Bto illuminate the display.
▲ ▲
▲
Battery Level Indicator
Alarm ModeStopwatch Mode
▲
Timekeeping Mode
Press C.
▲
▲
World Time Mode
Hand Setting Mode
or
Radio-controlled Atomic Timekeeping
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) and the time calibration signals transmitted in
Japan.
•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
Day of week
Minute hand
Hour hand
Second hand
Current Time 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. and Japanese time signal
transmitters, 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
transmitter indicator (US) starts to flash, which
indicates the setting screen.
•The second hand will move at high speed to the 12
o’clock position, where it will stop.
2. Press Conce so the city code is flashing on the
display.
3. 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
TYO: All cities in Japan
•Note that this watch does not have a city code that corresponds to Newfoundland.
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Transmitter indicator
4. Press Atwice to exit the setting screen.
•The first press of Adisplays the 12/24-hour setting screen. Pressing Aagain exits
the setting screen.
•The second hand will advance at high speed to the correct position in accordance
with seconds count of the digital time, and resume normal movement from there.
•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 Saving Time (summer time), turn off
the DST setting.
To display the digital time and last signal screen
•In the Timekeeping Mode, press Ato 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.
Last Signal Screen
Reception date
Day of week
Press A.
Day
▲
▲
Receiving indicator
A
2 seconds
A
Press D.
Hour : Minutes
PM indicator
Date Screen Receiving Indicator
and Seconds Count
Current Time Screen
▲
▲
Seconds
Reception Time
2 seconds
2 seconds
▲
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 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.
Resin Band Metal Band
•The watch should not be on its side or facing the wrong way.

Operation Guide 3310
2
•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 seven 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
•When within range of the applicable transmitter, this watch can receive either the
U.S. (Fort Collins, Colorado) or Japanese (Fukushima or Fukuoka/Saga) time
calibration signal. The signal the watch will attempt to pick up depends on its current
Home City code setting as shown below.
Home City Code
LAX, DEN, CHI, NYC
TYO*
Frequency
60kHz
40kHz
60kHz
Transmitter
Fort Collins, Colorado
Fukushima
Fukuoka/Saga
*
With
TYO
, you can specify either 40kHz or 60kHz.
•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.
•At distances further than about 500 kilometers from the Fukushima and Fukuoka/
Saga transmitter, signal reception may not be possible during certain times of year
or times of day. Radio interferance may also cause problems with reception.
1,000
kilometers
1,000
kilometers
Fukuoka/Saga
500
kilometers
Fukushima
500
kilometers
2,000 miles
Fort Collins
•See the information under “Signal Reception Troubleshooting”if you experience
problems with time calibration signal reception.
About Auto Receive
When auto receive is turned on, the watch automatically starts to receive the time
calibration signal when the time in the Timekeeping 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 are successful.
Note
•Auto receive is performed only if the watch is in the Timekeeping 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).
•When a reception starts, the second hand will move at high speed to the 12 o’clock
position where it will stop until the reception is complete.
•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 easily receive the signal.
•When auto receive is turned on, the watch receives the calibration signal for two to
seven minutes everyday when the time in the Timekeeping Mode reaches each of
the five calibration times. Do not perform any button operation within seven 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. The 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 1) (Level 4)
•The Level 4 receiving indicator appears on the Timekeeping Mode’s Receiving
Indicator and Seconds Count screen only.
The Level 4 receiving indicator is not displayed if signal reception was unsuccessful
or after manual adjustment of the current time setting.
•The Level 4 receiving indicator indicates that at least one of the five calibration
signal reception was successful. Note, however, that the Level 4 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. Release Dand RC flashes to indicate that signal
reception has started.
•When a reception starts, the second hand will move at
high speed to the 12 o’clock position where it will stop
until the reception is complete.
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Receiving indicator
•Time calibration signal reception normally takes from two to seven minutes. In
Japan, however, reception can take up to 14 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 the 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, hold down Auntil the
transmitter indicator starts to flash, which indicates the
setting screen.
•The second hand will move at high speed to the 12
o’clock position, where it will stop.
2. Press Cthree times to move the flashing to the auto
receive on/off setting.
3. Press Dto toggle auto receive on (ON) and off (OF).
•If the current Home City setting is a city code that
does not support auto receive, “--”appears in
place of the on/off indicator. This means you cannot
turn auto receive on or off.
4. Press Atwice to exit the setting screen.
•The second hand will advance at high speed to the correct position in accordance
with the digital time seconds count, and resume normal movement from there.
•For information about city codes that support signal reception, see “To set your
Home City”.
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On/off status
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
Problem
Cannot perform
manual receive.
Auto receive is
turned on, but
the Level 4
receiving
indicator does
not appear on
the Timekeeping
Mode display.
Time setting is
incorrect
following signal
reception.
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, NYC, or TYO.
•You changed the time setting manually.
•The watch was not in the Timekeeping
or World Time Mode, or you were
performing some button operation
during the auto receive.
• Even if reception is successful, the
Level 4 receiving indicator disappears
every day at 3 a.m.
•Time data (hour, minutes, seconds) only
was received during the last reception.
The Level 4 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.
What you should do
•Enter the Timekeeping Mode
and try again.
•Select LAX, DEN, CHI,
NYC, or TYO as your Home
City.
•Perform manual receive or
wait until the next auto
receive is performed.
•Check to make sure the
watch is in a location where it
can receive the signal.
•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 Atomic Timekeeping 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 two seconds.
•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 the
selected city code
To view the time in another city
While in the World Time Mode, press Dto scroll through the city codes (time zones).
•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 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 two seconds.
2. Hold down Ato toggle Daylight Saving Time (DST
indicator displayed) and Standard Time (DST indicator
not displayed).
•Note that you cannot use the World Time 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.
DST indicator

Operation Guide 3310
3
•The DST indicator will appear on the display whenever you display a city code for
which Daylight Saving Time is turned on.
•Note that you cannot switch between Standard Time and Daylight Saving Time
while GMT is selected as the city code.
•Note that the DST/Standard Time setting affects only the currently displayed city
code. Other city codes are not affected.
Alarms
You can set three 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 and Hourly Time Signal operate in
accordance with the current digital time.
•The alarm number (AL1 though AL3) indicates an alarm
screen. SIG appears in place of the alarm number when
the Hourly Time Signal screen is shown.
•All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
Alarm
number
Alarm time
(Hour : Minutes)
Mode
indicator
On/Off status
Alternate at
two-second
interval
To set an alarm time
1. In the Alarm Mode, press Dto select the alarm whose
time you want to set.
AL1 AL2 AL3 SIG
2. Hold down Auntil the hour setting of the alarm time
starts 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. (Pindicator).
•If you have 24-hour timekeeping selected in the Timekeeping Mode, the alarm
time is also displayed in 24-hour format.
5. Press Ato exit the setting screen.
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 Dto sound the alarm.
To turn an alarm and the Hourly Time Signal on and off
1. In the Alarm Mode, press 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 Ato
turn it on and off.
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 1/100-second value appears while the elapsed time
operation is stopped or while a split time is frozen on the
display.
SecondsMinutes
Seconds
1/100
second
More than
one minute
Elapsed time
(Minutes : Seconds) 1/100 second
Elapsed Time Screen
•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.
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Split indicator
Split time
(Minutes : Seconds) 1/100 second
Split Time Screen
To measure times with the stopwatch
D
Start Stop
Elapsed Time
➤
Re-start Clear
D➤
Stop
D➤D➤A
Split Time
D
Start Split
➤
Split release Clear
A➤
Stop
A➤D➤A
Two Finishes
D
Start Split
➤
Stop Clear
A➤
Split release
D➤A➤A
First runner
finishes.
Display time of
first runner.
Second
runner
finishes.
Display time of
second runner.
Illumination
An LED (light-emitting diode) and a light guide panel
illuminate the digital display for easy reading in the dark.
•See “Illumination Precautions”for other important
information.
To illuminate the display
In any mode, press Bto 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.
Battery
This watch is equipped with a solar cell and a 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.
•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
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 battery should not need replacement, but after very long
use over a number of years, the rechargeable battery may lose its ability to achieve
a full charge. Should you notice problems with getting the rechargeable battery to a
full charge, contact your dealer or CASIO distributor about having it replaced.
•The rechargeable battery should be replaced with a CASIO-specified CTL1616
battery 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 level drops to Level 4 and
when you have the battery 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
battery from going dead.
To check the current battery level
In the Timekeeping Mode, press Conce to display the battery level indicator.
•The battery level indicator shows the battery level either as HI (Level 1) or MID
(Level 2).
•If the battery level drops below Level 2 (MID), a charge soon alert (Level 3) is
displayed in all modes.
Battery level indicator
or
Function Status
All functions enabled.
All functions enabled.
Auto and manual receive,
alarm, hourly time signal,
illumination, and display are
disabled. Though the hands of
the watch do not move, time
continues to be kept internally.
All functions, including
timekeeping, disabled.
Level
1
2
3
4
Battery Level
Indicator
(Charge Soon Alert)
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Operation Guide 3310
4
•The flashing charge indicator (
C
) 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 battery is
charged, but you need to set the time and date, after the battery reaches Level 2
after dropping to Level 4.
•Leaving the watch in direct sunlight or some other very strong light source can cause
the battery level indicator to temporarily show a reading that is higher than the actual
battery level. The correct battery level 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 (
R
) 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.
Recover indicator
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.
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 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
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
5 minutes
24 minutes
48 minutes
8 hours
•Since these are the specs, we can include all the technical details.
•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 5 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.
Recovery Times
The table below shows the amount exposure that is required to take the battery from
one level to the next.
10 hours
48 hours
99 hours
5 hours
22 hours
46 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 4 Level 3 Level 2 Level 1
▲ ▲ ▲
1 hour
4 hours
8 hours
76 hours
▲
Exposure Level
(Brightness)
•The above exposure time values are all for reference only. Actual required exposure
times depend on lighting conditions.
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.
Last Signal Screen
Reception date
Day of week
Press A.
Day
▲
▲
Receiving indicator
A
2 seconds
A
Press D.
Hour : Minutes
PM indicator
Date Screen Receiving Indicator
and Seconds Count
Current Time Screen
▲
▲
Seconds
Reception Time
2 seconds
2 seconds
▲
Setting the Digital Time 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
transmitter indicator starts to flash, which indicates the
setting screen.
•The second hand will move at high speed to the 12
o’clock position, where it will stop.
2. Use Aor Cto move the flashing in the sequence
shown below to select other settings.
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Transmitter indicator
3. Use Cto display the transmitter screen.
•The transmitter indicator that appears indicates whether the currently selected
Home City code is one that supports time calibration signal reception.
Auto
Receive
DSTCity Code
Seconds Hour Minutes
12/24-Hour
Format
Day Month Year
/ Press A.
Press C.
Power
Saving
Transmitter
C
C
A
Transmitter/
City Settings
Time/Date
Settings
•appears for the trasmitter while NYC, CHI, DEN, LAX, ANC, or
HNL is selected as the Home City. In this case, there is not need to select a
transmitter.
•You can change the transmitter when HKG, TYO, or SEL is selected as the
Home City. For details, see “To select a frequency for use in Japan”.
4. Use Cand Ato select the other time and date settings, and change the settings
as described in “To set the current digital time and date manually”.
5. When the setting you want to change is flashing, use Band/or Dto change it as
described below.
This indicator: Means this:
The currently selected Home City code supports signal reception.
The currently selected Home City code does not support signal
reception.
•See “City Code Table”for a complete list of available city codes.
Screen: To do this:
Change the city code
Cycle between Daylight Saving Time
(ON), Standard Time (OF), and
Auto DST (A)
Toggle between auto receive on
(ON) and off (OF)
Do this:
Use D(east) and B(west).
Press D.
Press D.
Transmitter/City Settings
Screen: To do this:
Toggle between 12-hour ( ) and
24-hour ( ) timekeeping
Reset the seconds to
Toggle the illumination duration
setting between 1.5 second ( ) and
2.5 seconds ( )
Change the hour or minutes
Change the year
Change the month or day
Toggle Power Saving on (ON) and
off (OF)
Do this:
Press D.
Press D.
Press B.
Use D(+) and B(–).
Use D(+) and B(–).
Use D(+) and B(–).
Press D.
Time/Date Settings
•For information about settings other than the time and date, see the following.
Illumination duration: Illumination
Power Saving: Power Saving Function
6. Use Ato exit the setting screen.
•If a Transmitter/City Setting screen is displayed, press Atwice.
•If a Time/Date Setting screen is displayed, press Aonce.
•The second hand will advance at high speed to the correct position in accordance
with the digital time seconds count, and resume normal movement from there.
•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 (A) can be selected only while HNL, ANC, LAX, DEN, CHI, NYC,
HKG, TYO, or SELis selected as the Home City code. For more information, see
“Daylight Saving Time (DST)”below.
•The auto receive setting is used for time calibration signal reception only. See “About
Auto Receive”for details.
Daylight Saving Time (DST)
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 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 time calibration signals transmitted from Fukushima and Fukuoka/Saga do not
include summer time data.
•The default DST setting is Auto DST (A) whenever you select HNL, ANC, LAX,
DEN, CHI, NYC, TYO, SEL, or HKG 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.

Operation Guide 3310
5
To change the Daylight Saving Time (summer time) setting
1. In the Timekeeping Mode, hold down Auntil the transmitter indicator starts to
flash, which indicates the setting screen.
2. Press Ctwice 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 Atwice to exit the setting screen.
•The DST indicator appears on the display to indicate that Daylight Saving Time is
turned on.
Auto DST ( A ) DST off ( OF ) DST on ( ON )
Analog Timekeeping
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 starts to flash, which
indicates the setting screen.
•The second hand will move at high speed to the 12
o’clock position, where it will stop.
3. If the second hand is not pointing precisely at 12 o’clock
at this time, use Dto adjust its position.
•Each press of Dcauses the second hand to advance
by one second.
4. Press C. This will cause the time on the digital display to flash, which indicates that
adjustment of hour and minute hands is selected.
5. Use Dand Bto adjust the analog setting as described below.
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When you want to do this:
Move the hand setting
forward 20 seconds
Perform this button operation:
•Press D.
Move the hand setting back
20 seconds
Move the hand setting a short
way forward at high speed
Move the hand setting a
short way back at high speed
Move the hand setting a
long way forward at high
speed
•Press B.
•Hold down D.
•Release Dwhen the hands reach the setting
you want.
•Hold down B.
•Release Bwhen the hands reach the setting
you want.
•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.
Move the hand setting a long
way back at high speed
•While holding down Bto move the hands at
high-speed, press Dto 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.
6. 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
enters a sleep state whenever the watch is left in an area
where lighting is dim (less than about 30 lux).
The following shows how watch functions are affected
when left in a dark place while in the sleep state.
Power Saving
indicator
The sleep state is indicated by a blank screen with the Power Saving indicator (
PS
)
flashing on it.
•Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.
Approximate Period
in sleep state
3 to 4 days
8 days or more
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.
To turn Power Saving on and off
1. In the Timekeeping Mode, hold down Auntil the
transmitter indicator starts to flash, which indicates the
setting screen.
•The second hand will move at high speed to the 12
o’clock position, where it will stop.
2. Press Aagain.
3. Press Cseven times until the Power Saving on/off
screen appears.
4. Press Dto toggle Power Saving on (ON) and off
(OF).
5. Press Ato exit the setting screen.
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On/Off status
•The second hand will advance at high speed to the correct position in accordance
with the digital time seconds count, and resume normal movement from there.
•The Power Saving indicator (
PS
) is on the display in all modes while the Power
Saving is turned on.
Auto Return Features
•If you leave the watch in the Alarm or Hand Setting Mode, or with the Battery Level
Indicator (HI or MID) displayed 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.
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 Atomic Timekeeping 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.
Japan Signal Frequencies
When you have TYO (Tokyo) selected as the Home City code, you can use the
following procedure to specify either 40kHz or 60kHz as the reception frequency. The
frequency you should use depends on your current location in Japan. See the map
under “Time Calibration Signal Reception”for more information.
Setting
City code
DST (summer time)
Auto receive
Initial Factory Default
(New York)
(Auto switching)
(Auto receive)
To select a frequency for use in Japan
1. In the Timekeeping Mode, hold down Auntil the
transmitter indicator starts to flash, which indicates the
setting screen.
•The second hand will move at high speed to the 12
o’clock position, where it will stop.
2. Use Dto select the transmitter you want to use.
•Each press of Dcycles through the available
frequencies as described below.
AT : The watch automatically selects the
frequency that has the strongest signal.
: Receives the signal from Fukushima
(40kHz).
: Receives the signal from Fukuoka/Saga
(60kHz).
3. Press Atwice to exit the setting screen.
•Reception can take up to 14 minutes when the AT
option is selected.
•The second hand will advance at high speed to the
correct position in accordance with seconds count of the
digital time, and resume normal movement from there.
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Transmitter indicator

Operation Guide 3310
6
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 battery replaced or when battery level drops to
Level 4.
•The current time for all city codes in the Timekeeping 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-hour Timekeeping Formats
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is also
applied in all other modes.
•With the 12-hour format, the P(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
•The illumination provided by the light may be hard to see when viewed under direct
sunlight.
•Illumination automatically turns off whenever an alarm sounds.
•Frequent use of illumination shortens the battery operating time.
Honolulu
Anchorage
Los Angeles
Denver
Chicago
New York
Caracas
Rio De Janeiro
London
Par is
Berlin
City City GMT Other major cities in same time zone
Code Differential
City Code Table
–––
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, Las Vegas, Vancouver,
Seattle/Tacoma, Dawson City, Tijuana
El Paso, Edmonton, Culiacan
Houston, Dallas/Ft. Worth,
New Orleans, Mexico City, Winnipeg
Montreal, Detroit, Miami, Boston,
Panama City, Havana, Lima, Bogota
La Paz, Santiago, Pt. Of Spain
Sao Paulo, Buenos Aires, Brasilia, Montevideo
Praia
Dublin, Lisbon, Casablanca, Dakar, Abidjan
Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,
Frankfurt, Vienna, Stockholm
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
Pt. Vila
Christchurch, Nadi, Nauru Is.
AT H
CAI
JRS
JED
THR
DXB
KBL
KHI
DEL
DAC
RGN
BKK
HKG
SEL
TYO
ADL
SYD
NOU
WLG
•Based on data as of June 2003.