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MO0512-EA
Operation Guide 4335 4348
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.
• The measurement functions built into this watch are not intended for use in taking
measurements that require professional or industrial precision. Values produced
by this watch should be considered as reasonably accurate representations only.
• The longitude, lunitidal interval, Moon phase indicator and tide graph data that
appear on the display of this watch are not intended for navigation purposes.
Always use proper instruments and resources to obtain data for navigation
purposes.
• This watch is not an instrument for calculating low tide and high tide times. The
tide graph of this watch is intended to provide a reasonable approximation of tidal
movements only.
• CASIO COMPUTER CO., LTD. assumes no responsibility for any loss, or any
claims by third parties that may arise through the use of this watch.
General Guide
• Press C to change from mode to mode.
• In any mode, press L to illuminate the display.
Timekeeping Mode
Press C.
▲
Warning!
Tide/Moon Data Mode
▲
Hand Setting Mode
▲
About This Manual
(Light)
Module 4335
Module 4348
Temperature Data
Recall Mode
▲
World Time Mode
• Depending on the model of your watch, display text
appears either as dark figures on a light background
(Module 4335), or light figures on a dark background
(Module 4348). 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.
• For the sake of simplicity, the sample displays in this
manual do not show the analog hands of the watch.
• 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.
Stopwatch Mode
▲
▲
Alarm Mode
▲
Countdown Timer
▲
Mode
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
This watch features separate digital and analog timekeeping. The procedures for
setting the digital time and analog time are different.
• In the Timekeeping Mode, press A to toggle between the thermometer screen and
the temperature tendency screen.
Thermometer Screen
Moon
phase
indicator
Tide
graph
PM indicator
• The tide graph shows tidal movements for the current date in accordance with the
current time as kept in the Timekeeping Mode.
• The Moon phase indicator shows the current Moon phase in accordance with the
current date as kept in the Timekeeping Mode.
• See “Thermometer” for details about the thermometer screen and temperature
tendency graph.
Important!
• Be sure to configure the current time and date, and your Home Site data (data for
the site where you use the watch) correctly before using the functions of this watch.
See “Home Site Data” for more information.
Setting the Digital Time and Date
This watch is preset with UTC differential values that represent each time zone around
the globe. Before setting the digital time, be sure to first set the UTC differential for
your Home Site, which is the location where you normally will be using the watch.
• Note that World Time mode times are all displayed based on the time and date
settings you configure in the Timekeeping Mode.
Hour : Minutes
To set the digital time and date
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Seconds
Seconds
Temperature
Unit
Thermometer
Day of week –
Day
Seconds
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
• Be sure to configure the correct UTC differential for
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your Home Site before configuring any other
Timekeeping Mode settings.
• See the “UTC Differential/City Code List” for
information about the UTC differential settings that are
supported.
2. Press C to move the flashing in the sequence shown
below to select other settings.
DST
UTC
Differential
Temperature Sensor
Calibration
Press A.
▲
Temperature Tendency
Screen
▲
Hour
Minutes
Day
Month
Temperature
Tendency
Graph
12/24-Hour
Forma t
Year
3. When the setting you want to change is flashing, use D and B to change it as
described below.
Screen: To do this:
Reset the seconds to 00
Toggle between Daylight Saving
Time (ON) and Standard Time (OF)
Specify the UTC differential
Change the hour or minutes
Toggle between 12-hour (12H) and
24-hour (24H) timekeeping
Change the year
Do this:
Press D.
Press D.
Use D (+) and B (–).
Use D (+) and B (–).
Press D.
Use D (+) and B (–).
Change the month or day
• The UTC differential setting range is –12.0 to +14.0, in 0.5-hour units.
• For information about settings other than the time and date, see the following.
Temperature Sensor Calibration: “Thermometer”
Temperature Unit: “Thermometer”
4. Press A twice to exit the setting screen.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all modes.
• The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
• When DST is turned on, the UTC differential setting range is –11.0 to +15.0, in 0.5-
hour units.
• Any time the seconds setting is changed, the analog hands are adjusted accordingly.
• See “Daylight Saving Time (DST) Setting” below for details about the DST setting.
Daylight Saving Time (DST) Setting
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.
To toggle the Timekeeping Mode digital time between DST and Standard Time
DST indicator
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On/Off status
Home Site Data
Moon phase, tide graph data, and Tide/Moon Data Mode data will not be displayed
properly unless Home Site data (UTC differential, longitude and lunitidal interval) is
configured correctly.
• The UTC differential indicates the time differential with Greenwich, England.
• The letters UTC is the abbreviation for Coordinated Universal Time, which 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.
1.In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C once and the DST setting screen appears.
3. Press D to toggle between Daylight Saving Time (
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displayed) and Standard Time (OF displayed).
4. Press A twice to exit the setting screen.
• The DST indicator appears on the Timekeeping, Tide/
Moon Data, Alarm, and Hand Setting Mode screens to
indicate that Daylight Saving Time is turned on. In the
case of the Tide/Moon Data Mode, the DST indicator
appears on the Tide Data screen only.
ON
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Operation Guide 4335 4348
• The lunitidal interval is the time elapsing between the Moon’s transit over a meridian
and the next high tide at that meridian. See “Lunitidal Interval” for more information.
• This watch displays lunitidal intervals in terms of hours and minutes.
• The “Site/Lunitidal Interval Data List” provides UTC differential and longitude
information around the world.
• The following is the initial factory default Home Site data (Tokyo, Japan) when you
first purchase the watch and whenever you have the batteries replaced. Change
these settings to match the area where you normally use the watch.
UTC differential (+9.0); Longitude (East 140 degrees); Lunitidal interval (5 hours,
20 minutes)
To configure Home Site data
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Longitude
Longitude
(East/West)
Value
Longitude
Value
5. While the setting you want to change is flashing, use D and B to change it as
described below.
Setting
Longitude Value
Longitude
(East/West)
Lunitidal Interval
Hours, Minutes
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C once to display the UTC differential setting
screen, and confirm that the setting is correct.
• If the UTC differential setting is not correct, use D (+)
and B (–) to change it.
3. Press A to display the longitude value setting screen.
4. Press C to move the flashing in the sequence shown
below to select other settings.
Longitude
(East/West)
Screen
Lunitidal Interval
Hours
Lunitidal Interval
Minutes
Button Operations
Use D (+) and B (–) to change the setting.
• You can specify a value from 0˚ to 180˚, in 1-
degree units.
Use D to switch between east longitude (E)
and west longitude (
).
Use D (+) and B (–) to change the setting.
6. Press A to exit the setting screen.
Setting the Analog Time
Perform the procedure below when the time indicated by the analog hands does not
match the time of the digital display.
To adjust the analog time
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• To lock high speed hands movement, hold down D to start it and then press B
to lock. The hands will continue to advance for one 12-hour cycle or until you
press any button to stop it.
It will also stop automatically after the time advances 12 hours or if an alarm (daily
alarm, Hourly Time Signal, or countdown beeper) starts to sound.
4. Press A to 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.
1. In the Timekeeping Mode, press C seven times to
enter the Hand Setting Mode.
2. Hold down A until the current digital time starts to
flash, which indicates the setting screen.
3. Use D to adjust the analog setting.
• Press D once to advance the hands 20 seconds.
• Hold down D to advance the hands at high speed.
Tide/Moon Data
Tide graph
Month – Day
Moon Phase Indicator
Tide/Moon Data Screens
In the Tide/Moon Data Mode, press A to toggle between the Tide Data screen and
the Moon Data screen.
Tide Data Screen
Tide graph
Time
• When you enter the Tide/Moon Data Mode, the data that appears first is the Moon
data (Moon age and Moon phase indicator) for the current date as kept by the
Timekeeping Mode.
Tide/Moon data lets you view the Moon age and the Moon
phase for a particular date, and tidal movements for a
particular date and time for your Home Site.
• When you enter the Tide/Moon Data Mode, the data for
6:00 a.m. on the current date appears first.
• If you suspect that the Tide/Moon data is not correct for
some reason, check the Timekeeping Mode data
(current time, date, and Home Site settings), and make
changes as required.
• See “Moon Phase Indicator” for information about the
Time
Moon phase indicator and “Tide Graph” for information
about the tide graph.
• All of the operations in this section are performed in the
Tide/Moon Data Mode, which you enter by pressing C.
Moon Data Screen
Moon phase indicator
Press A.
▲
Month – Day
▲
Moon age
To view the Moon data for a particular date
1. In the Tide/Moon Data Mode, press A to display the Moon Data screen.
2. Use D (+) and B (–) to display the date whose Moon Data you want to view.
• You can select any date from 2000 to 2099.
• You can also specify a date for tide data or Moon data. For details, see “To specify a
date”.
To view tide data for a particular time
1. In the Tide/Moon Data Mode, press A to display the Tide Data screen.
• The initial screen shows the tide graph for 6:00 AM.
2. Use D (+) and B (–) to display the time whose Tide Data you want to view.
To specify a date
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Year
Month – Day
1. In the Tide/Moon Data Mode, hold down A until the
year setting starts to flash, which indicates the setting
screen.
2. Press C to move the flashing in the sequence shown
below to select the other settings.
Month DayYear
3. While a setting is flashing, use D (+) or B (–) to
change it.
• You can specify a date in the range of January 1,
2000 to December 31, 2099.
4. Press A to exit the setting screen.
5. Use A to display either the Tide Data screen or the
Moon Data screen.
Thermometer
This watch uses a temperature sensor to measure temperature. A reading is taken
during each even-numbered minute, and the result of the last reading is displayed on
the thermometer screen.
The watch also takes separate readings and stores them in memory for display in the
temperature tendency graph, which can be viewed in the Timekeeping Mode.
Measured temperature values are stored in memory for later recall when you need
them.
Thermometer Screen
Thermometer
• You can select either Celsius (°C) or Fahrenheit (°F) units for the thermometer
screen. See “To specify the temperature display unit” for more information.
• The thermometer screen displays temperature values in 0.1°C units (or 0.2°F units).
• The display range of the thermometer screen is –10.0°C to 60.0°C (or 14.0°F to
140.0°F).
• You can calibrate the temperature sensor if you feel that the displayed temperature
values are not correct. See “Temperature Sensor Calibration” for more information.
Important!
• Temperature measurements are affected by your body temperature (while you are
wearing the watch), direct sunlight, and moisture. To achieve a more accurate
temperature measurement, remove the watch from your wrist, place it in a well
ventilated location out of direct sunlight, and wipe all moisture from the case. It takes
approximately 20 to 30 minutes for the case of the watch to reach the actual
surrounding temperature.
Temperature Tendency Graph
The watch also takes temperature readings at the top and the bottom of each hour
and stores the results in memory for display on the temperature tendency graph.
Depending on the current Timekeeping Mode time, the temperature tendency graph
shows either the top of the hour measurements or the bottom of the hour
measurements for the past 17 hours.
From the top of each hour to the 29th minute, past top of the hour readings are shown
in the graph. From the bottom of each hour to the 59th minute, past bottom of the hour
readings are shown in the graph.
Temperature tendency graph contents are updated every 30 minutes.
▲
Past 17 hours of
measurement values
The horizontal axis of the graph represents time. The rightmost column is the newest
temperature value in memory, while the leftmost column is the temperature value
stored approximately 17 hours ago (1 dot = 1 hour). The vertical axis of the graph
represents the relative change from one hour to the next.
• When the relative change from one hour to the next exceeds +10.0ºC (+18.0ºF), the
dot at the highest point for the applicable hour flashes.
• When the relative change from one hour to the next exceeds –10.0ºC (–18.0ºF),
there is no dot in the applicable hour's column.
• If a measurement error occurs for some reason, only a single the dot in the center
column will be displayed.
Temperature change greater
than +10.0°C (+18.0°F)
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Press A.
▲
Latest measurement value
Temperature change greater
than –10.0°C (–18.0°F)
Temperature
Tendency Screen
▲
+6.0 to +9.9°C (+10.8 to +17.9°F)
+2.0 to +5.9°C (+3.6 to +10.7°F)
–1.9 to +1.9°C (–3.5 to +3.5°F)
–5.9 to –2.0°C (–10.7 to –3.6°F)
–9.9 to –6.0°C (–17.9 to –10.8°F)
Error
Temperature
Tendency
Graph
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Operation Guide 4335 4348
Recalling Temperature Data
The measurements the watch takes at the top and the bottom of each hour are stored
in memory automatically. Memory can hold up to 50 measurement records. You can
use the Temperature Data Recall Mode to recall memory data when you need it.
• Temperature data records are assigned numbers automatically starting from 01.
• When there are already 50 records in memory, storage of a new temperature
reading causes the oldest record (record number 50) to be deleted automatically to
make room for the new data. The new data is assigned record number 1, and all of
the numbers of all the other records (01 to 49) are incremented by 1 (becoming 02
through 50).
To recall temperature records
Temperature
Data storage time
1. In the Timekeeping Mode, press C twice to enter the
Temperature Data Recall Mode.
Record
• This displays the newest record currently in memory.
Number
2. Use D (+) and B (–) to scroll through the records.
• Pressing D while the oldest record is displayed will
scroll to the newest record.
• If a temperature measurement operation is performed
while a record is displayed, the displayed record's
number will be incremented by 1.
• If an error occurs during temperature measurement,
‘‘--.-’’ will be shown for the temperature value in the
corresponding record.
Stopwatch
Minutes
1/100 Second
Seconds
Hours
To measure times with the stopwatch
Elapsed Time
D
Start Stop
Split Time
D
Start Split
Two Finishes
D
Start Split
The stopwatch lets you measure elapsed time, split times,
and two finishes.
• The display range of the stopwatch is 99 hours, 59
minutes, 59.99 seconds.
• The stopwatch continues to run, restarting from zero
after it reaches its limit, until you stop it.
• The stopwatch measurement operation continues even
if you exit the Stopwatch Mode.
• Exiting the Stopwatch Mode while a split time is frozen
on the display clears the split time and returns to
elapsed time measurement.
• All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C.
D ➤
➤
A ➤
➤
(SPL displayed)
A ➤
➤
First runner
finishes.
Display time of
first runner.
D
Re-start Clear
A
Split release
D
Stop
Second runner
finishes.
D
➤
Stop
D ➤
➤
Stop
A ➤
➤
Split release
Display time of
second runner.
A
➤
A
Clear
A
Clear
Countdown Timer
You can set the countdown timer within a range of one
minute to 100 hours. 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.
• All of the operations in this section are performed in the
Minutes
Second
Hours
To use the countdown timer
Press D while 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.
• When auto-repeat is turned on, the countdown will restart automatically without
pausing when it reaches zero. The alarm sounds to signal when the countdown
reaches zero.
• The countdown timer measurement operation continues even if you exit the
Countdown Timer Mode.
• To stop a countdown operation completely, first pause it (by pressing D), and then
press A. This returns the countdown time to its starting value.
To configure countdown start time and auto-repeat settings
Auto-repeat on indicator
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On/Off status
3. Perform the following operations, depending on which setting is currently selected
on the display.
• While the start time setting is flashing, use D (+) and B (–) to change it.
• Set 0:00 to specify 100 hours.
• While the auto-repeat on/off setting (0N or 0F) is flashing on the display, press
D to toggle auto-repeat on (0N) and off (0F).
4. Press A to exit the setting screen.
• The auto-repeat on indicator (
screen while this function is turned on.
• Frequent use of auto-repeat and the alarm can run down battery power.
Countdown Timer Mode, which you enter by pressing
C.
1. While the countdown start time is on the display in the
Countdown Timer Mode, hold down A until the hour
setting of the 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 C to move the flashing in the sequence shown
below, and select the setting you want to change.
Start Time
(Hours)
Start Time
(Minutes)
Auto-Repeat
On/Off
) is displayed on the Countdown Timer Mode
Alarm
Alarm time
(Hour : Minutes)
AM indicator
Alarm on indicator
To set the alarm time
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• When setting the alarm time using the 12-hour format, take care to set the time
correctly as a.m. (A indicator) or p.m. (P indicator).
4. Press A to exit the setting screen.
Alarm Operation
The alarm sounds at the preset time for 10 seconds, regardless of the mode the watch
is in.
• To stop the alarm tone after it starts to sound, press any button.
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
To turn the Daily alarm and the Hourly Time Signal on and off
In the Alarm Mode, press D to cycle through the settings shown below.
Module 4335
Alarm Off
Signal Off
Module 4348
Alarm Off
Signal Off
• 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.
When the alarm is turned on, the watch beeps when the
alarm time is reached. You can also turn on an Hourly
Time Signal, which will cause the watch to beep twice
every hour on the hour.
• All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
Hourly time signal
on indicator
1. In the Alarm Mode, hold down A until the hour setting
of the alarm time starts to flash, which indicates the
setting screen.
• This operation turns on the alarm automatically.
2. Press C to move the flashing between the hour and
minute settings.
3. While a setting is flashing, use D (+) and B (–) to
change it.
Alarm On
Signal Off
Alarm On
Signal Off
Alarm Off
Signal On
Alarm Off
Signal On
Alarm On
Signal On
Alarm On
Signal On
World Time
The World Time Mode digitally displays the current time in
Day of the week and day
in the selected city
City code
Current time in
selected city
To view the time in another city
While in the World Time Mode, press D to scroll eastward through the city codes
(time zones) or B to scroll westward.
To toggle a city code time between Standard Time and Daylight Saving Time
DST indicator
50 cities (30 time zones) around the world.
• The times kept in the World Time Mode are
synchronized with the time being kept in the
Timekeeping Mode. If you feel that there is an error in
any World Time Mode time, check the UTC differential of
your Home Site Data (Home City) and the current
setting of the Timekeeping Mode time.
• Select a city code in the World Time Mode to display the
current time in any particular time zone around the
globe. See the “UTC Differential/City Code List” for
information about the UTC differential settings that are
supported.
• All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
1. In the World Time Mode, use D and B to display the
city code (time zone) whose Standard Time/Daylight
Saving Time setting you want to change.
2. Hold down A to toggle between Daylight Saving Time
(DST indicator displayed) and Standard Time (DST
indicator not displayed).
• The DST indicator is shown on the World Time screen
while Daylight Saving Time is turned on.
• Note that changing the Daylight Saving Time for any city
code causes the setting to be applied to all city codes.
Illumination
Auto light switch
on indicator
This watch has an EL (electro-luminescent) panel that
causes the entire display to glow for easy reading in the
dark. The watch’s auto light switch turns on illumination
automatically when you angle the watch towards your
face.
• The auto light switch must be turned on (indicated by
the auto light switch on indicator) for it to operate.
• See “Illumination Precautions” for other important
information about using illumination.
To turn on illumination manually
In any mode, press L to illuminate the display for about
1.5 seconds.
• The above operation turns on illumination regardless of
the current auto light switch setting.
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Operation Guide 4335 4348
About the Auto Light Switch
Turning on the auto light switch causes illumination to turn on, whenever you position
your wrist as described below in any mode, except for the Hand Setting Mode setting
screen.
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
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
startle 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 the Timekeeping Mode, hold down D for about three seconds to toggle the auto
light switch on (
• The auto light switch on indicator (
light switch is turned on.
• In order to protect against running down the battery, the auto light switch will turn off
automatically approximately six hours after you turn it on. Repeat the above
procedure to turn the auto light switch back on if you want.
displayed) and off ( not displayed).
) is on the display in all modes while the auto
More than
40°
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.
Moon Phase Indicator
The Moon phase indicator of this watch indicates the current phase of the Moon as
shown below.
Module 4335 Module 4348
Moon
Module
Phase
4335
Indicator
Module
4348
Moon Age
Moon Phase
• The Moon phase indicator shows the Moon as viewed at noon from a position in the
Northern Hemisphere looking south. Note that at times the image shown by the
Moon phase indicator may differ from that of the actual Moon in your area.
• The left-right orientation of the Moon phase is reversed when viewing from the
Southern Hemisphere or from a point near the equator.
Moon Phases and Moon Age
The Moon goes through a regular 29.53-day cycle. During each cycle, the Moon
appears to wax and wane as the relative positioning of the Earth, Moon, and Sun
changes. The greater the angular distance between the Moon and the Sun,* the more
we see illuminated.
* The angle to the Moon in relation to the direction at which the Sun is visible from the
Earth.
This watch performs a rough calculation of the current Moon age starting from day 0
of the moon age cycle. Since this watch performs calculations using integer values
only (no fractions), the margin for error of the displayed Moon age is ± 1 day.
Tide Graph
The wave on the watch’s tide graph indicates the current tide.
Tidal Movements
Tides are the periodic rise and fall of the water of oceans, seas, bays, and other
bodies of water caused mainly by the gravitational interactions between the Earth,
Moon and Sun. Tides rise and fall about every six hours. The tide graph of this watch
indicates tidal movement based on the Moon’s transit over a meridian and the lunitidal
interval. The lunitidal interval differs according to your current location, so you must
specify a lunitidal interval in order to obtain the correct tide graph readings.
The tide graph displayed by this watch is based on the current Moon age.
Remember that the margin for error of the Moon age displayed by this watch is ± 1
day. The greater the error in a particular Moon age, the greater the error in the
resulting tide graph.
Moon phase indicator
(part you cannot see)
0.0 - 1.8
1.9 - 5.5 5.2 - 9.2 9.3 - 12..9 13.0 - 16.6
27.7 - 29.5
New
Moon
First
Quarter
(Waxing)
Moon phase (part you can see)
16.7 - 20.2
Full
Moon
High tide
Low tide
20.3 - 23.9 24.0 - 27.6
Last
Quarter
(Waning)
Lunitidal Interval
Theoretically, high tide is at the Moon’s transit over the meridian and low tide is about
six hours later. Actual high tide occurs somewhat later, due to factors such as
viscosity, friction, and underwater topography. Both the time differential between the
Moon’s transit over the meridian until high tide and the time differential between the
Moon’s transit over the meridian until low tide are known as the “lunitidal interval.”
When setting the lunitidal interval for this watch, use the time differential between the
Moon’s transit over the meridian until high tide.
Thermometer
Temperature Sensor Calibration
The temperature sensor built into the watch is calibrated at the factory and normally
requires no further adjustment. If you notice serious errors in the temperature readings
produced by the watch, you can calibrate the sensor to correct the errors.
Important!
Incorrectly calibrating the temperature sensor can result in incorrect readings.
Carefully read the following before doing anything.
•
Compare the readings produced by the watch with those of another reliable and
accurate thermometer.
•
If adjustment is required, remove the watch from your wrist and wait for 20 or 30
minutes to give the temperature of the watch time to stabilize.
To calibrate the temperature sensor
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Calibration value
• To return the calibration value to its default (no calibration, indicated by ‘‘- -’’),
press D and B at the same time.
• Temperature sensor calibration will not be possible if the current reading is
outside the allowable display range (–10.0°C/14.0°F to 60.0°C/140.0°F) and the
calibration value shows ‘‘- -’’.
• Setting a sensor calibration value does not affect temperature values that are
already stored in memory.
4. After configuring the setting you want, press A twice to exit the setting screen.
To specify the temperature display unit
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Temperature unit
4. After configuring the setting you want, press A twice to exit the setting screen.
• The temperature display unit setting you select is also applied to temperature values
that are already stored in memory.
Auto Return Feature
• If you leave a screen with flashing digits on the display without performing any
operation for two or three minutes, the watch saves any settings you have made up
to that point and exits the setting screen automatically.
• The watch will change to the Timekeeping Mode automatically if you do not perform
any operation in the Tide/Moon Data Mode, Temperature Data Recall Mode, Alarm
Mode, or Hand Setting Mode for two or three minutes.
Button Operation Tone
In any mode (except when a setting screen is on the display), hold down C for about
three seconds to toggle the button operation tone on and off. The button operation
tone off indicator (
• Even if the button operation tone is turned off, the daily alarm and countdown timer
alarm continue to sound when required.
Data and Setting Scrolling
The B and D buttons 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.
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.
• 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 the A (AM) 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.
• 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.
World Time
• The seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.
• All World Time Mode times are calculated from the current time in the Timekeeping
Mode using UTC time differential values.
• The UTC differential is a value that indicates the time difference between a
reference point in Greenwich, England and the time zone where a city is located.
• The letters UTC is the abbreviation for Coordinated Universal Time, which 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.
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C nine times to display the temperature sensor
calibration screen.
3. Use D (+) and B (–) to change the calibration value.
• You can change the value in 0.1ºC (0.2ºF) steps, in a
range of ±10ºC (±18ºF). The calibration value shows
‘‘--.-’’ when the setting is outside the allowable range.
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C 10 times to display the temperature unit
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setting screen.
3. Use D to switch between Celsius (°C) and Fahrenheit
(°F).
• The initial factory default and the initial default after
battery replacement is Celsius (°C).
) is displayed while the tone is turned off.
4
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Operation Guide 4335 4348
Illumination Precautions
•
The electro-luminescent panel that provides illumination loses power after ver y long use.
• Illumination may be hard to see when viewed under direct sunlight.
• The watch may emit an audible sound whenever the display is illuminated. This is
due to vibration of the EL panel used for illumination, and does not indicate
malfunction.
• Illumination turns off automatically whenever an alarm sounds.
• Frequent use of illumination runs down the batteries.
Auto light switch precautions
• Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light
switch to operate when it is not needed, which shortens battery life. If you want to
wear the watch on the inside of your wrist, turn off the auto light switch feature.
More than 15 degrees
too high
• 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 toward 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.
UTC Differential/City Code List
City
PPG
HNL
ANC
YVR
SFO
LAX
DEN
MEX
CHI
MIA
NYC
CCS
YYT
RIO
RAI
LIS
LON
BCN
PAR
MIL
ROM
BER
ATH
JNB
IST
CAI
JRS
MOW
JED
THR
DXB
KBL
KHI
MLE
DEL
DAC
RGN
BKK
JKT*
SIN*
HKG
BJS
SEL
TYO
ADL
GUM
SYD
NOU
WLG
TBU
City
Pago Pago
Honolulu
Anchorage
Vancouver
San Francisco
Los Angeles
Denver
Mexico City
Chicago
Miami
New York
Caracas
St. Johns
Rio De Janeiro
Praia
Lisbon
London
Barcelona
Pari s
Milan
Rome
Berlin
Athens
Johannesburg
Istanbul
Cairo
Jerusalem
Moscow
Jeddah
Tehran
Dubai
Kabul
Karachi
Male
Delhi
Dhaka
Yangon
Bangkok
Jakarta
Singapore
Hong Kong
Beijing
Seoul
Tokyo
Adelaide
Guam
Sydney
Noumea
Wellington
Nuku'Alofa
Code
• Based on data as of June 2005.
* The sequence of these city codes is SIN → JKT.
• 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 in about one second, even if you
keep the watch pointed towards your face.
UTC
Differential
–11.0
–10.0
–09.0
–08.0
–07.0
–06.0
–05.0
–04.0
–03.5
–03.0
–01.0
+00.0
+01.0
+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
+13.0
Other major cities in same time zone
Papeete
Nome
Las Vegas, Seattle/Tacoma, Dawson City
Edmonton, El Paso
Houston, Dallas/Fort Worth, New Orleans, Winnipeg
Montreal, Detroit, Boston,
Panama City, Havana, Lima, Bogota
La Paz, Santiago, Port Of Spain
Sao Paulo, Buenos Aires, Brasilia, Montevideo
Dublin, Casablanca, Dakar, Abidjan
Amsterdam, Algiers, Hamburg, Frankfurt, Vienna, Madrid,
Stockholm
Helsinki, Beirut, Damascus, Cape Town
Kuwait, Riyadh, Aden, Addis Ababa, Nairobi
Shiraz
Abu Dhabi, Muscat
Mumbai, Kolkata
Colombo
Phnom Penh, Hanoi, Vientiane
Kuala Lumpur, Taipei, Manila, Perth, Ulaanbaatar
Pyongyang
Darwin
Melbourne, Rabaul
Port Vila
Christchurch, Nadi, Nauru Island
Site/Lunitidal Interval Data List
Site Standard DST/ Longitude
Anchorage –9.0 –8.0 149°W 5:40
Bahamas –5.0 –4.0 77°W 7:30
Baja, California –7.0 –6.0 110°W 8:40
Bangkok +7.0 +8.0 101°E 4:40
Boston –5.0 –4.0 71°W 11:20
Buenos Aires –3.0 –2.0 58°W 6:00
Casablanca +0.0 +1.0 8°W 1:30
Christmas Island +14.0 +15.0 158°W 4:00
Dakar +0.0 +1.0 17°W 7:40
Gold Coast +10.0 +11.0 154°E 8:30
Great Barrier Reef, Cairns +10.0 +11.0 146°E 9:40
Guam +10.0 +11.0 145°E 7:40
Hamburg +1.0 +2.0 10°E 4:50
Hong Kong +8.0 +9.0 114° E 9:10
Honolulu –10.0 –9.0 158°W 3:40
Jakarta +7.0 +8.0 107°E 0:00
Jeddah +3.0 +4.0 39°E 6:30
Karachi +5.0 +6.0 67°E 10:10
Kona, Hawaii –10.0 –9.0 156°W 4:00
Lima –5.0 –4.0 77°W 5:20
Lisbon +0.0 +1.0 9° W 2:00
London +0.0 +1.0 0°E 1:10
Los Angeles –8.0 –7.0 118°W 9:20
Maldives +5.0 +6.0 74°E 0:10
Manila +8.0 +9.0 121°E 10:30
Mauritius +4.0 +5.0 57°E 0:50
Melbourne +10.0 +11.0 145°E 2:10
Miami –5.0 –4.0 80°W 7:30
Noumea +11.0 +12.0 166°E 8:30
Pago Pago –11.0 –10.0 171°W 6:40
Palau +9.0 +10.0 135°E 7:30
Panama City –5.0 –4.0 80°W 3:00
Papeete –10.0 –9.0 150°W 0:10
Rio De Janeiro –3.0 –2.0 43°W 3:10
Seattle – 8.0 –7.0 122°W 4:20
Shanghai +8.0 +9.0 121°E 1:20
Singapore +8.0 +9.0 104°E 10:20
Sydney +10.0 +11.0 151°E 8:40
Tokyo +9.0 +10.0 140°E 5:20
Vancouver –8.0 –7.0 123°W 5:10
Wellington +12.0 +13.0 175°E 4:50
•
Based on data as of 2003.
UTC Differential
Time Summer Time
Lunitidal
Interval
5
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