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Operation Guide 2872
1
MO0405-EA
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out
of your purchase, be sure to read this manual carefully and keep it on hand
for later reference when necessary.
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 "Power Supply" of this manual for important
information you need to know when exposing the watch to bright
light.
Applications
The built-in sensors of this watch measure direction, barometric pressure,
temperature and altitude. Measured values are then shown on the display.
Such features make this watch useful when hiking, mountain climbing, or
when engaging in other such outdoor activities.
If the digital display of the watch is blank...
If the PS indicator is on the display (either
flashing or steady), it means that 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 the watch is left for a certain period
where it is dark.
· 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.
*It can take up to two seconds for the display to turn on.
· See "Power Saving" for more information.
Warning!
· The measurement functions built into this watch are not intended for
taking measurements that require professional or industrial precision.
Values produced by this watch should be considered as reasonable
representations only.
· When engaging in mountain climbing or other activities in which losing
your way can create a dangerous or life-threatening situation, always be
sure to use a second compass to confirm direction readings.
· 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.
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.
Sensor
(Light)
General Guide
· The illustration below shows which buttons you need to press to navigate
between modes.
· In any mode, press L to illuminate the display.
· You can use buttons B, D, and E to directly enter a sensor mode from
the Timekeeping Mode or from another sensor mode. To enter a sensor
mode from the Stopwatch, Countdown Timer, Data Recall, or Alarm Mode,
first enter the Timekeeping Mode and then press the applicable button.
Timekeeping Mode
Altimeter Mode
Countdown
Timer Mode
Stopwatch
Mode
Digital
Compass Mode
Press C.
Press D.
Alarm Mode
Press C.
Press B.
Sensor Modes
Data Recall Mode
Barometer/
Thermometer Mode
Press E.
Timekeeping
Use the Timekeeping Mode to view the current
time and date. You also need to enter the
Timekeeping Mode to configure timekeeping
settings, as well as the display illumination
duration and Power Saving setting.
· In the Timekeeping Mode, press A to toggle
between the month­day and the day of the
week­day at the top of the display.
Hour : Minutes
PM indicator
Seconds
Month ­ Day
Day of week
Day
Press A.
To set the time and date
1. In the Timekeeping Mode, hold down A until the seconds start to flash,
which indicates the setting screen.
2. Press C to move the flashing in the sequence shown below to select other
settings.
Year
Seconds
Hour
Minutes
Day
Month
12/24-Hour
Format
Power
Saving
3. When the timekeeping setting you want to change is flashing, use D and/
or B to change it as described below.
· The following steps explain how to configure timekeeping settings only.
4. After the settings are the way you want, press A to exit the setting screen.
Note
· For information about specifying how long the display remains illuminated,
see "To specify the illumination duration".
· For details about configuring settings for the Power Saving feature, see
"Power Saving".
Do this:
Press D.
Use D (+) and B (­).
Press D.
Press D (+) and B (­).
To do this:
Reset the seconds to
00
Change the hour or minutes
Toggle between 12-hour (12H)
and 24-hour (24H) timekeeping
Change the year, month, or day
Screen
· 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 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.


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Operation Guide 2872
2
· The 12-hour/24-hour timekeeping format you select in the Timekeeping
Mode is applied in all modes.
· The year can be set in the range of 2000 to 2039. The day of the week is
calculated automatically in accordance with the date you set.
· 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 when battery power drops to Level 4.
Digital Compass
A built-in bearing sensor detects magnetic north and indicates one of 16
directions on the display. Direction readings are performed in the Digital
Compass Mode.
· You can calibrate the bearing sensor if you suspect the direction reading is
incorrect.
To enter and exit the Digital Compass Mode
1. While in the Timekeeping or in any of the other
sensor modes, press B to enter the Digital
Compass Mode.
· At this time, the watch immediately starts a
Digital Compass operation. After about two
seconds, letters appear on the display to
indicate the direction that the 12 o'clock
position of the watch is pointing.
2. Press C to return to the Timekeeping Mode.
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Timekeeping
Mode time
12 o'clock position
To take a direction reading
1. Enter the Digital Compass Mode.
2. Place the watch on a flat surface or, if you are
wearing the watch, make sure that your wrist
is horizontal (in relation to the horizon).
3. Point the 12 o'clock position of the watch in
the direction you want to measure.
4. Press B to start a Digital Compass
measurement operation.
· After about two seconds, the direction that the
12 o'clock position of the watch is pointing
appears on the display.
· Also, four pointers appear to indicate magnetic
north, south, east, and west.
· After the first reading is obtained, the watch
continues to take direction readings
automatically each second, for up to 20
seconds.
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Direction
indicator
Angle value (in degrees)
Magnetic north pointer
12 o'clock position
NW
0
°
WNW
W
W
SW
SW
SSW
S
SS
E
SE
ESE
E
ENE
NE
N
N
E
N
NNW
90
°
180
°
270
°
· During measurement, the watch displays an angle value, a direction
indicator, and four direction pointers, which change dynamically when the
watch is moved. After measurement is complete, the angle value,
direction indicator, and four direction pointers are frozen in accordance
with the last measurement.
· The
indicator flashes on the display while a measurement is in progress.
Note
· Note that taking a measurement
while the watch is not horizontal
(in relation to the horizon) can
result in large measurement error.
· The margin of error for the angle value is ±11 degrees. If the indicated
direction is northwest (NW) and 315 degrees, for example, the actual
direction can be anywhere from 304 to 326 degrees.
· Any ongoing direction measurement operation is temporarily paused while
the watch is performing an alert operation (daily alarm, Hourly Time Signal,
countdown timer alarm) or while the watch's backlight is turned on (by
pressing L). The measurement operation resumes for its remaining
duration after the operation that caused it to pause is finished.
· The following table shows the meanings of each of the direction
abbreviations that appear on the display.
· See "Digital Compass Precautions" for other important imformation about
taking direction readings.
Direction Meaning
Direction
Meaning
Direction
Meaning
Direction
Meaning
NNE
ESE
SSW
WNW
NE
SE
SW
NW
North-
northeast
East-
southeast
South-
southwest
West-
northwest
Northeast
Southeast
Southwest
Northwest
East-
northeast
South-
southeast
West-
southwest
North-
northwest
ENE
SSE
WSW
NNW
North
East
South
West
N
E
S
W
Barometer/Thermometer
This watch uses a pressure sensor to measure air pressure (barometric
pressure) and a temperature sensor to measure temperature.
· You can calibrate the temperature sensor and the pressure sensor if you
suspect that readings are incorrect.
To take barometric pressure and temperature readings
Pressing E in the the Timekeeping or in any of
other sensor modes enters the Barometer/
Thermometer Mode and automatically starts
taking barometric pressure and temperature
measurements.
· It can take up to four or five seconds for the
barometric pressure reading to appear after
you enter the Barometer/Thermometer Mode.
· Barometric pressure is displayed in units of
1hPa (or 0.05 inHg).
Barometric
pressure
indicators
Temperature
Barometric
pressure
· The displayed barometric pressure value changes to xxxx hPa (or inHg) if
a measured barometric pressure falls outside the range of 260 hPa to 1100
hPa (7.65 inHg to 32.45 inHg). The barometric pressure value will be
displayed again as soon as the measured barometric pressure is within the
allowable range.
· Temperature is displayed in units of 0.1°C (or 0.2°F).
· The displayed temperature value changes to xxx °C (or °F) if a measured
temperature falls outside the range of ­10.0
°C to 60.0°C (14.0°F to
140.0
°F). The temperature value will be displayed again as soon as the
measured temperature is within the allowable range.
· In some areas, barometric pressure is expressed in millibars (mb) instead
of hecto-pascals (hPa). It really makes no difference, because 1hPa = 1mb.
· You can select either hectopascals (hPa) or inchesHg (inHg) as the display
unit for the measured barometric pressure, and Celsius (
°C) or Fahrenheit
(
°F) as the display unit for the measured temperature value. See "To
change the barometric pressure and temperature units".
· See "Barometer and Thermometer Precautions" for important precautions.
Barometric Pressure Indicators
The watch's barometric pressure indicators graphically show you whether the
barometric pressure for up to the last 15 hours has been rising, holding
steady, or falling. Since changes in barometric pressure signal changes in the
atmosphere, you can predict upcoming weather with reasonable accuracy by
looking at the current tendency of barometric pressure.
The barometric pressure indicator display area of the watch has three lines:
top, middle, and bottom. The location of each indicator tells you whether
barometric pressure is rising, steady, or falling.
Within
±2hPa of previous reading
Rise greater than 3hPa from previous
reading
Fall greater than 3hPa from previous
reading
How to Interpret Barometric Pressure Indicators
· The rightmost indicator is the newest indicator, the leftmost indicator is the
oldest indicator.
Rising pressure generally means improving weather.
Falling pressure generally means deteriorating weather.
· The locations of the indicators, not their pattern, indicates barometric
pressure tendencies.
· A series of multiple indicators in the top line of the barometric pressure
indicator display area indicates a series of rising pressure readings. It does
not indicate steady pressure at a high level.
· A series of multiple indicators in the bottom line of the barometric pressure
indicator display area indicates a series of falling pressure readings. It does
not indicate steady pressure at a low level.
· A movement of indicators from the top line to the
middle line does not indicate falling pressure, and
a movement of indicators from the bottom line to
the middle line does not indicate rising pressure. A
move to the middle line indicates that the current
pressure measurement is relatively unchanged
(within
±2hPa) from the previous measurement.
Rising pressure is not indicated until an indicator
appears in the top line, and falling pressure is not
indicated until an indicator appears in the bottom line.
· Steady pressure is indicated by a series of indicators in the middle line.
Notes
· Though you can configure the watch to display barometric pressure in units
of hPa or inHg, the barometric pressure indicator positions are always
determined based on
±3 hPa changes in barometric pressure.
· No indicator is plotted if a measurement operation cannot be performed
due to sensor malfunction, low battery power, because of the watch is in
the function sleep state, or any other reason.


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Operation Guide 2872
3
About Barometric and Temperature Measurements
· Barometric pressure and temperature measurement operations are
performed as soon as you enter the Barometer/Thermometer Mode. After
that, barometric pressure and temperature measurements are taken every
five seconds.
· The barometer automatically takes measurements every three hours
(starting from midnight), regardless of what mode you are in. The results of
these measurements are used for positioning indicators in the barometric
pressure indicator display area.
· You can also perform a barometric pressure and temperature measurement
at any time by pressing E in the Barometer/Thermometer Mode.
Barometer and Thermometer Precautions
· The pressure sensor built into this watch measures changes in air
pressure, which you can then apply to your own weather predictions. It is
not intended for use as a precision instrument in official weather prediction
or reporting applications.
· Sudden temperature changes can affect pressure sensor readings.
· 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.
Altimeter
A built-in altimeter uses a pressure sensor to detect the current air pressure,
which is then used to estimate the current altitude. The watch is pre-
programmed with ISA (International Standard Atmosphere) preset values,
which are used to convert air pressure readings to altitude values. If you
preset a reference altitude, the watch will also calculate the current relative
altitude based on your preset value. Memory is also provided for the storage
of altimeter data.
Important!
· This watch estimates altitude based on air pressure. This means that
altitude readings for the same location may vary if air pressure changes.
· This watch employs a semiconductor pressure sensor, which is affected by
temperature changes. Make sure that the watch is not being exposed to
temperature changes while you are taking altitude measurements.
· To avoid the effect of sudden temperature changes on measurement, wear
the watch so it is in direct contact with your wrist during measurement.
· Do not rely upon this watch for altitude measurements or perform button
operations while engaging in sports where there are sudden altitude
changes, while sky diving, hang gliding, or paragliding, or while riding a
gyrocopter, glider, or any other aircraft.
· Do not use this watch for measuring altitude in applications that demand
professional or industrial level precision.
· Remember that the air inside of a commercial aircraft is pressurized.
Because of this, the readings produced by this watch will not match the
altitude readings announced or indicated by the flight crew.
How the Altimeter Works
With the Preset Values (No Reference Altitude)
· The watch measures the air pressure at your current location and uses the
built-in ISA values to convert it to the equivalent altitude.
With a Reference Altitude
· If you set a reference altitude, the watch
uses that value when calculating altitude
based on air pressure.
· To determine the height of a tall building,
set the reference altitude to 0 on the
ground floor. Note, however, that you may
not be able to get a good reading if the
building is pressurized or air-conditioned.
· When mountain climbing, you can set the
reference value in accordance with a
marker along the way or altitude
information from a map. After you do this,
the altitude readings produced by the
watch will be more accurate than they
would be without a reference altitude.
400
B
A
To take an altitude reading
Pressing D in the Timekeeping Mode or in any
of the other sensor modes enters the Altimeter
Mode and automatically starts altitude
measurement.
· It can take up to four or five seconds for the
altitude reading to appear after you enter the
Altimeter Mode.
· The Altimeter Mode screen also displays the
current temperature. See "Barometer/
Thermometer" for more information.
· During the first three minutes after entering the
Altimeter Mode, the
indicator flashes on the
display and measurements are taken every five
seconds. After that, the
indicator disappears
as measurements are taken every two minutes.
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Altitude
Temperature
Altitude indicator
Timekeeping Mode
time
· Pressing D causes the measurement operation to restart from the
beginning of the cycle described above.
· Altitude is displayed in units of 5 meters (20 feet).
· The measurement range for altitude is ­700 to 10,000 meters (­2,300 to
32,800 feet).
· The measured altitude may be a negative value in cases where there is a
reference altitude value set or because of certain atmospheric conditions.
· The displayed altitude value changes to xxxxx meters (or feet) if a
measured altitude falls outside the measurement range. The altitude value
will be displayed again as soon as the measured altitude is within the
allowable range.
· You can change the unit of measurement for the displayed altitude values
between meters (m) and feet (ft). See "To change the altitude unit".
Altitude Indicator
In the Altimeter Mode, the altitude indicator shows the current altitude reading
in meters (m). As shown in the illustration below, the altitude indicator is
divided into two zones: one for 0 to 999 meters, and one for 1000 to 10,000
meters.
Though you can specify either meters or feet for the watch's altitude
measurements, the altitude indicator always shows altitude in meters.
The above altitude indicator indicates an altitude of approximately 4,340 meters.
· The 0-999 meter zone starts from the 12 o'clock position (0 meters), and
indicates altitudes in 20-meter units.
· The 1000+ meter zone indicates altitudes in 1000-meter units.
1000+ meter zone
0-999 meter zone
Setting a Reference Altitude
After you set a reference altitude, the watch adjusts its air-pressure-to-altitude
conversion calculation accordingly. The altitude measurements produced by
this watch are subject to error caused by changes in air pressure. Because of
this, we recommend that you update the reference altitude whenever one is
available during your climb.
To set a reference altitude
1. In the Altimeter Mode, hold down A until
OFF (flashing) appears or until the display
goes blank. This is the setting screen.
· If the display goes blank, it means there is a
reference altitude value. Release A and
wait for four or five seconds until the value
appears.
2. Press D (+) or B (­) to change the current
reference altitude value by 5 meters (or 20
feet).
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· You can set the reference altitude within the range of ­10,000 to 10,000
meters (­32,800 to 32,800 feet).
· Pressing D and B at the same time returns to OFF(no reference
altitude), so the watch performs air pressure to altitude conversions
based on preset data only.
3. Press A to exit the setting screen.


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Operation Guide 2872
4
Altitude Records
Storing altitude data in memory creates an altitude record. If a reading is
greater than all of the other altitude readings currently stored in memory, it is
stored in the maximum altitude record. The following describes the contents
of each type of record.
Recording date (month, day), time (hour, minutes), altitude, and altitude
indicator: Up to 41 records
Maximum altitude (including recording date and time) and altitude indicator:
1 record
· The maximum altitude record shows information about the altitude record
that has the greatest altitude value. The maximum altitude record is
updated any time a reading produces an altitude that is greater than that of
the current maximum altitude record.
To store an altitude record in memory
In the Altimeter Mode, hold down D for about
one second until the watch beeps twice. This
indicates that a record of the altitude reading has
been stored in memory.
· You can recall data in memory using the Data
Recall Mode.
· Note that there is enough memory to store a
total of 41 records. If there are already 41
records in memory, storing another one
automatically deletes the oldest record to make
room for the new one.
To view altitude record data
1. Use C to enter the Data Recall Mode.
2. Press D to cycle through the altitude record screens in the sequence
shown below.
· The maximum altitude record appears first. After that, each press of D
scrolls through records in sequence, starting from the oldest record.
· If an error occurs while altitude data is being stored in memory or if there is
no altitude data in memory, xxxxx is shown for the measured altitude
value on the corresponding altitude record screen.
Maximum Data
Press D.
Oldest Data
Altitude
Recording date
(Month ­ Day)
Recording time
(Hour : Minutes)
Newest Data
Altitude indicator
Deleting the Maximum Altitude Record Data
Use the following procedure when you want to delete the data in the
maximum altitude record. Note that you can delete maximum altitude record
data only. You cannot delete the data of any of the other altitude records.
To delete the maximum altitude record data
1. Use the procedure under "To view altitude record data" to display the
maximum altitude record.
· The maximum altitude record is the one with MAX next to the recording
time.
2. Hold down A until xxxxx appears in place of the maximum altitude
value. This indicates that the data is deleted.
Stopwatch
The stopwatch lets you measure elapsed time,
split times, and two finishes. Display of the minute
and seconds indicators can be turned on or off.
· The display range of the stopwatch is 9 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.
Minutes
Seconds
1/100
second
Timekeeping
Mode time
Seconds indicator
Hours
Minute indicator
To measure times with the stopwatch
J
J
J
JJ
JJ
J
JJ
J
First runner
finishes.
Display time
of first runner.
Second runner
finishes.
J
Elapsed Time
EE
E
E
A
Start
Stop
Re-start
Stop
Clear
Split Time
EA
A
E
A
Start
Split
Split release
Stop
Clear
(SPL displayed)
Two Finishes
EA
E
A
A
Start
Split
Stop
Split release
Clear
Display time of
second runner.
Minute and Seconds Indicators
The minute and seconds indicators graphically
indicate elapsed time values in the Stopwatch
Mode. The seconds indicator acts like the second
hand of an analog stopwatch, and moves on the
display to indicate the seconds count. The minute
indicator acts like the minute hand of an analog
stopwatch, and moves on the display to indicate
the minute count.
· You can use the following procedure to turn
display of the minute and seconds indicators
on and off.
Seconds
indicator
Minute
indicator
To turn display of the Stopwatch Mode minute and seconds
indicators on and off
1. With the Stopwatch Mode cleared to all zeros,
hold down A until the seconds indicator
starts flashing. This is the setting screen.
2. Press D to toggle display of the minute and
seconds indicators on (indicated when the
minute indicator is displayed) and off (minute
indicator not displayed).
3. When the setting is the way you want, press
A to exit the setting screen.
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Seconds
indicator
Minute indicator
On
Off
Countdown Timer
You can set a countdown timer start time in the
range of one minute to 60 minutes. An alarm
sounds when the countdown reaches zero. An
auto-repeat feature causes the countdown to
restart automatically when the end of a
countdown is reached, and a progress beeper
signals the progress of the countdown.
· All of the operations in this section are
performed in the Countdown Timer Mode,
which you enter by pressing C.
Seconds
Minutes
Minute indicator
Seconds indicator
Timekeeping
Mode time
· Countdown start time
· Auto-repeat on/off
· Progress beeper on/off
· Minute, seconds indicator display on/off
Countdown start time
You can set a countdown start time in the range of one minute to 60 minutes,
in one-minute increments.
Auto-repeat
Whenever zero is reached, the watch beeps and auto-repeat automatically
restarts the countdown from the countdown start time you set. Turning off
auto-repeat causes the countdown to stop and the countdown start time to
appear on the display when the end of the countdown is reached.
Progress Beeper
When the progress beeper is turned on, the watch beeps at minute 10, 5, 4,
3, 2, and 1, of the countdown, and at second 50, 40, 30, 20, 10, 5, 4, 3, 2,
and 1 of the final minute of the countdown.
Minute and Seconds Indicators
The minute and seconds indicators graphically indicate the Countdown Timer
Mode minutes and seconds as they are counted down. You can turn display of
these indicators on or off.
Configuring the Countdown Timer
The following are the settings you should configure before actually using the
countdown timer.


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Operation Guide 2872
5
Minute, seconds
indicators on/off
Start
Time
Auto-repeat
on/off
To configure countdown timer settings
1. While the countdown start time is on the
display in the Countdown Timer Mode, hold
down A until the minute 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 to select other settings.
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3. Perform the following operations, depending
on which setting is currently selected on the
display.
· While the minute setting is flashing, use D
(+) or B (­) to change it.
· While the auto-repeat on/off setting (ON or
OFF) is flashing on the display, press D to
toggle auto-repeat on (ON) and off (OFF).
· While the seconds indicator is flashing,
press D to toggle display of the minute and
seconds indicators on (indicated when the
minute indicator is displayed) and off
(minute indicator not displayed).
4. Press A to exit the setting screen.
· The auto-repeat indicator (
) appears on the
display while auto-repeat is turned on.
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Auto-repeat indicator
Minute indicator
Seconds
indicator
On
Off
To turn the progress beeper on and off
Pressing A while the countdown start time is on
the display or while a countdown timer operation
is in progress in the Countdown Timer Mode
toggles progress beeper operation on (
displayed) and off (
not displayed).
To use the countdown timer
Press E while in the Countdown Timer Mode to
start the countdown timer.
· When display of the minute and seconds
indicators is turned on, the indicators show the
remaining countdown time (minutes and
seconds). The seconds and minute indicators
are positioned at 12 o'clock when the current
countdown time is 60 minutes.
Progress beeper on indicator
Minute indicator
Seconds
indicator
· When the countdown reaches zero, the alarm sounds for five seconds or
until you stop it by pressing any button.
· Press E while a countdown operation is in progress to pause it. Press E
again to resume the countdown.
· The countdown timer operation continues even if you exit the Countdown
Timer Mode.
· To completely stop a countdown operation, first pause it (by pressing E),
and then press A. This returns the countdown time to its starting value.
· Frequent use of auto-repeat and the alarm can run down battery power.
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,
which will cause the watch to beep twice every
hour on the hour.
· The alarm number (ALx1 through
ALx5 ) indicates an alarm screen. :00 is
shown for the alarm time when the Hourly Time
Signal screen is on the display.
· When you enter the Alarm Mode, the data you
were viewing when you last exited the mode
appears first.
· All of the operations in this section are
performed in the Alarm Mode, which you enter
by pressing C.
Alarm time
(Hour : Minutes)
Alarm number
Alarm on indicator
Hourly time signal on
indicator
Timekeeping
Mode time
To set an alarm time
1. In the Alarm Mode, use D to scroll through
the alarm screens until the one whose time
you want to set is displayed.
2. Hold down A until the hour setting of the alarm time start to flash, which
indicates the setting screen.
· This automatically turns on the alarm.
3. Press C to 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. (P indicator).
5. Press A to exit the setting screen.
AL x1
:00
AL x2
AL x3
AL x4
AL x5
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 D to sound the alarm.
To turn an alarm and the Hourly Time Signal on and off
1. In the Alarm Mode, use D to select an alarm or the Hourly Time Signal.
2. When the alarm or the Hourly Time Signal you want to is selected, press
E to 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.
Backlight
The backlight uses an EL (electro-luminescent)
panel that causes the entire display to glow for
easy reading in the dark. The watch's auto light
switch automatically turns on the backlight 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.
· You can specify 1.5 seconds or 2.5 seconds as
the illumination duration.
· See "Backlight Precautions" for other important
information about using the backlight.
Auto light switch on
indicator
To turn on the backlight manually
Press L in any mode to illuminate the display.
· The above operation turns on the backlight regardless of the current auto
light switch setting.
· The backlight is disabled while you are performing a bearing sensor
calibration operation in the Digital Compass Mode.
About the Auto Light Switch
Turning on the auto light switch causes the backlight to turn on, whenever you
position your wrist as described below in any mode.
Note that this watch features a "Full Auto EL Light", so the auto light switch
operates only when available light is below a certain level. It does not turn on
the backlight 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 the backlight to turn on.
· Wear the watch on the outside of your wrist.
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.
Parallel to
ground
More than
40
°
· 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.