Casio 3379 Watch User Manual

MO0406-EA
Operation Guide 3379
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.
About This Manual
• Depending on the model of your watch, display text
appears either as dark figures on a light background, or
light figures on a dark background. All sample displays
in this manual are shown using dark figures on a light
background.
• Button operations are indicated using the letters shown
in the illustration.
• Each section of this manual provides you with the
information you need to perform operations in each
mode. Further details and technical information can be
found in the “Reference” section.
Expose the watch to bright light to charge its batteries before using it.
You can use this watch even as its batteries are being charged by exposure to
bright light.
• Be sure to read “Power Supply” of this manual for important information you
need to know when exposing the watch to bright light.
(Light)
If the digital display of the watch is blank...
If the Power Saving indicator (
) is flashing, it means
that the display is blank because the watch’s Power
Saving function has turned it off to conserve power. Power
Saving automatically turns off the display and enters a
sleep state whenever your watch is left for a certain period
in an area where it is dark. If the watch is kept in the dark
for a longer period, the analog hands will also stop moving
after a few days.
• The initial factory default setting is Power Saving on.
• The watch will recover from the sleep state if you move it
to a well-lit area, if you press any button, or if you angle
the watch towards your face for reading.
• See “Power Saving Function” for more information.
Power saving indicator
(Light)
Alarm Mode
General Guide
Countdown Timer Mode
• Press C to change from mode to mode.
• In any mode, press L to illuminate the digital display areas.
Timekeeping Mode
▲
▲
World Time Mode
Press C.
Stopwatch Mode
Hand Setting Mode
▲
▲
▲
▲
P
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
• When setting the time, you can also configure settings for the illumination duration,
the 12/24-hour format, and power saving on/off.
• In the Timekeeping Mode, press B to cycle through the digital time screens as
shown below.
Hour:
Minutes
Seconds Seconds
Mode indicator
Press B.
Day
PM indicator
▲
Month. Day
To do this:
Do this:
Change the hour or minutes
Use D (+) and B (–).
Change the year
Change the month or day
Toggle Power Saving on (ON) and
off (OFF)
▲
▲
▲
Day of week
Screen:
Day of
week
DST indicator
Seconds
Press D.
• See “City Code Table” for a complete list of available city codes.
• For information about settings other than the time and date, see the following.
Illumination duration: Illumination
Power Saving: Power Saving Function
4. Press A to exit the setting screen.
• When you exit the setting screen, the analog hands are adjusted automatically to
match the digital time. See “Analog Timekeeping” for more information.
Digital Time and Date
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.
Daylight Saving Time (summer time) advances the digital time setting by one hour
from Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.
|| |||
To change the Daylight Saving Time (summer time) setting
1. In the Timekeeping Mode, hold down A until the city code starts to flash in the
bottom dial, which indicates the setting screen.
2. Press C once and the DST setting screen will appear in the bottom dial.
3. Use D to toggle Daylight Saving Time (ON) and Standard Time (OFF).
4. Press A to exit the setting screen.
• The DST indicator (
) appears on the bottom dial to indicate that Daylight Saving
Time is turned on.
|||||
Analog Timekeeping
|||
|||
To set the digital time and date
1. In the Timekeeping Mode, hold down A until the city
code starts to flash in the bottom dial, which indicates
the setting screen.
2. Press C to change the flashing contents in the
sequence shown below to select other settings.
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.
City code
City Code
DST
12/24-Hour
Format
Seconds
Hour
Power
Saving
Day
Month
Year
Minutes
3. When the setting you want to change is flashing, use B and/or D to change it as
described below.
Screen:
Daylight Saving Time (DST)
To do this:
Do this:
Change the city code
Use D (east) and B (west).
Toggle between Daylight Saving
Time (ON) and Standard Time
(OFF)
Toggle between 12-hour (12H) and
24-hour (24H) timekeeping
Reset the seconds to 00
Toggle the illumination duration
setting between 1.5 seconds ( ) and
2.5 seconds ( )
Press D.
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
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, 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
Mode indicator
Press D.
Press D.
Press B.
1. In the Timekeeping Mode, press C five times to enter
the Hand Setting Mode.
2. Hold down A until the current digital time starts to flash
in the bottom dial, which indicates the setting screen.
3. Use D and B to adjust the analog setting as
described below.
1
Operation Guide 3379
When you want to do this:
Move the hand setting
forward 20 seconds
Move the hand setting a short
way forward at high speed
Move the hand setting a
long way forward at high
speed
Perform this button operation:
• Press D.
Alarm Operation
• Hold down D.
• Release D when the hands reach the setting
you want.
• While holding down D to move the hands at
high speed, press B to 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.
To test the alarm
In the Alarm Mode, hold down B to sound the alarm.
The alarm sounds in all modes at the preset time for about 10 seconds, or until you
stop it by pressing any button.
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.
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 set is selected, press B to
turn it on and off. The current setting is indicated by following indicators.
Indicates alarm is ON.
Indicates Hourly Time Signal is ON.
• The alarm on indicator ( ) and the Hourly Time Signal on indicator ( ) remain
displayed in all modes while these functions are turned on.
• The alarm on indicator appears when any of the alarms is turned on.
Countdown Timer
You can set the countdown timer within a range of one to
1/10 second
60 minutes. An alarm sounds when the countdown
Mode indicator reaches zero.
World Time
Mode indicator The World Time Mode digitally shows the current time in
30 cities (29 time zones) around the world.
• Pressing A in the World Time Mode causes the
applicable city code to appear in the bottom dial for
about one second.
• If the current time shown for a city is wrong, check your
Home City time settings and make the necessary
changes.
• All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
DST indicator
3. While a setting is flashing, use D (+) and B (–) to change it.
• See “To turn auto-repeat on and off” below for details on the auto-repeat setting.
4. Press A to exit the setting screen.
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.
• Press D while a countdown operation is in progress to pause it. Press D again to
resume the countdown.
• To completely stop a countdown operation, first pause it (by pressing D), and then
press B. This returns the countdown time to its starting value.
To turn auto-repeat on and off
1. While the countdown start time is displayed in the
bottom dial in the Countdown Timer Mode, hold down
A until the current countdown start time starts to flash
in the bottom dial, which indicates the setting screen.
| ||
2. Press C until the auto-repeat setting is flashing in the
bottom
dial.
|
|
|
|
|
3. Press D to turn auto-repeat on (
displayed) and
off (
displayed).
4. Press A to exit the setting screen.
• When auto-repeat is turned on, the alarm sounds and
Number of repeats
countdown starts again whenever the countdown
reaches zero. You can stop the countdown by pressing
D, and manually reset to the countdown start time by
pressing B.
• Auto-repeat timing repeats up to nine times.
||
|||
• 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.
• Note that you cannot switch between Standard Time and Daylight Saving Time while
GMT is selected as the city code.
• The DST indicator will appear whenever you display a city code for which Daylight
Saving Time is turned on.
• Note that the DST/Standard Time setting affects only the currently displayed city
code. Other city codes are not affected.
Autorepeat
Minutes
||
To toggle a city code time between Standard Time and Daylight Saving Time
1. In the World Time Mode, use B and D to display the
city code (time zone) whose Standard Time/Daylight
Saving Time setting you want to change in the bottom
dial.
• Pressing A in the World Time Mode causes the
applicable city code to appear in the bottom dial for
about one second.
2. Hold down A to toggle Daylight Saving Time (DST
indicator displayed in the bottom dial) and Standard
Time (DST indicator not displayed).
Seconds
|||
City code
To view the time in another city
While in the World Time Mode, press D to scroll through the city codes (time zones)
to the east or B to scroll to the west.
• For full information on city codes, see the “City Code Table”.
Minutes
To set the countdown start time
1. While the countdown start time is displayed in the bottom dial in the Countdown
Timer Mode, hold down A until the current countdown start time starts to flash,
which indicates the setting screen.
• If the countdown start time is not displayed, use the procedure under “To use the
countdown timer” to display it.
2. Press C to toggle the flashing contents of the bottom dial between the two settings
shown below.
||||
Current
time in
selected
city
• You can also select auto-repeat, which automatically
restarts the countdown from the original value you set
whenever zero is reached.
• The left display window normally shows the 1/10 second
count. When auto-repeat is turned on, however, it shows
the current repeat count.
• All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C.
|||||
Alarms
Mode indicator
Alarm number
You can set five independent daily alarms. When an alarm
is turned on, the alarm tone sounds when the alarm time
is reached.
You can also turn on an Hourly Time Signal that causes
the watch to beep twice every hour on the hour.
• The alarm number (A1 through A5) indicates an alarm
screen. 00 is shown for the alarm number when the
Hourly Time Signal screen is displayed.
• All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
Stopwatch
Mode indicator The stopwatch lets you measure elapsed time, split times,
and two finishes.
1/100 second
Alarm time
(Hour : Minutes)
To set an alarm time
||
|||
|||
Alarm on indicator
1. In the Alarm Mode, use D to scroll through the alarm
numbers until the one whose time you want to set is
displayed.
A1
A2
A3
00
A5
A4
||
2. Hold down A until the hour digits of the alarm time
start to flash in the bottom dial, 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. ( indicator on the bottom dial).
5. Press A to exit the setting screen.
Minutes Seconds
• The display range of the stopwatch is 99 minutes, 59.99
seconds.
• The stopwatch continues to run, restarting from zero
after it reaches its limit, until you stop it.
• Exiting the Stopwatch Mode while a split time is frozen
in the bottom dial 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.
To measure times with the stopwatch
Elapsed Time
D
Start
➤D
Stop
➤D
Re-start
➤D
Stop
➤B
Clear
➤B
Split
➤B
Split release
➤D
Stop
➤B
Clear
➤B
Split
➤D
Stop
➤B
Split release
➤B
Clear
Split Time
D
Start
Two Finishes
D
Start
First runner
finishes.
Display time of
first runner.
Second runner
finishes.
Display time of
second runner.
2
Operation Guide 3379
Illumination
Auto light switch
indicator
An LED (light-emitting diode) and light guide panel
illuminate the digital display areas for easy reading in the
dark. The watch’s auto light switch automatically
illuminates the digital display areas when you angle the
watch towards your face.
• The auto light switch must be turned on (indicated by
the auto light switch indicator) for it to operate.
• See “Illumination Precautions” for other important
information.
To turn on illumination manually
In any mode, press L to illuminate the digital display
areas.
• You can specify 1.5 seconds or 2.5 seconds as the
illumination duration. See “To set the digital time and
date” for more information.
• The above operation turns on illumination regardless of
the current auto light switch setting.
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. Note that this watch features a “Full Auto
Light,” so the auto light switch operates only when available light is below a certain
level. It does not illuminate the digital display areas under bright light.
Moving the watch to a position that is parallel to the ground and then tilting it
towards you more than 40 degrees causes illumination to turn on.
• Wear the watch on the outside of your wrist.
Parallel to
ground
More than
40°
• The flashing charge indicator (
) at Level 3 tells you that battery power is
very low, and that exposure to bright light for charging is required as soon as
possible.
• At Level 4, all functions are disabled and settings return to their initial factory
defaults. Functions are enabled once again after the rechargeable batteries are
charged, but you need to set the time and date, after the batteries reach Level 3
(indicated by the flashing charge indicator) from Level 4. You will not be able to
configure any of the other settings until the batteries reach Level 2 (no charge
indicator) after dropping to Level 4.
• Leaving the watch in direct sunlight or some other very strong light source can cause the
battery power indicator to momentarily show a reading that is higher than the actual
battery level. The correct battery power indicator should appear after a few minutes.
• If you use the light or alarms a number of times during a short period, the recover
indicator appears and the following operations become disabled until battery power
recovers.
Illumination
Beeper tone
Coordination between digital and analog timekeeping
After some time, battery power will recover and the recover indicator will disappear,
indicating that the above functions are enabled again.
Charging Precautions
Certain charging conditions can cause the watch to become very hot. Avoid leaving
the watch in the areas described below whenever charging its rechargeable batteries.
Also note that allowing the watch to become very hot can cause its liquid crystal
display to black out. The appearance of the LCD should become normal again when
the watch returns to a lower temperature.
Warning!
Leaving the watch in bright light to charge its rechargeable batteries can cause
it to become quite hot. Take care when handling the watch to avoid burn injury.
The watch can become particularly hot when exposed to the following
conditions for long periods.
• On the dashboard of a car parked in direct sunlight
• Too close to an incandescent lamp
• Under direct sunlight
Charging Guide
Warning!
• Always make sure you are in a safe place whenever you are reading the watch
using the auto light switch. Be especially careful when running or engaged in
any other activity that can result in accident or injury. Also take care that
sudden illumination by the auto light switch does not surprise or distract
others around you.
• When you are wearing the watch, make sure that its auto light switch is turned
off before riding on a bicycle, or operating a motorcycle or any other motor
vehicle. Sudden and unintended operation of the auto light switch can create a
distraction, which can result in a traffic accident and serious personal injury.
To turn the auto light switch on and off
In any mode, hold down L for about two seconds to toggle the auto light switch on
(auto light switch indicator displayed) and off (auto light switch indicator not displayed).
• The auto light switch is automatically turned off whenever battery power is at Level
4. After battery power recovers to Level 2, you will have to perform the above
procedure to turn the auto light switch back on again.
• The auto light switch indicator remains in all modes while the auto light switch is
turned on.
Power Supply
The battery power indicator shows you the current power level of the rechargeable
batteries.
Function Status
Level Battery Power
Recover indicator
Indicator
1
All functions enabled.
2
All functions enabled.
lll
lll
lll
ll l
(Charge Soon Alert)
4
29 minutes
Indoor Fluorescent Lighting (500 lux)
5 hours
• Since these are the specs, we can include all the technical details.
• Display on 18 hours per day, sleep state 6 hours per day
• 1 illumination operation (1.5 seconds) per day
• 10 seconds of alarm operation per day
• Stable operation is promoted by frequent charging.
Recovery Times
The table below shows the amount exposure that is required to take the batteries from
one level to the next.
Approximate Exposure Time
Exposure Level
(Brightness)
Level 4
Level 3
Level 2
Level 1
Outdoor Sunlight (50,000 lux)
▲
Battery Power Indicator and Recover Indicator
Battery power indicator
19 minutes
Daylight Through a Window on a Cloudy Day
(5,000 lux)
2 hours
19 hours
5 hours
Sunlight Through a Window
(10,000 lux)
7 hours
94 hours
22 hours
Daylight Through a Window
on a Cloudy Day (5,000 lux)
10 hours
152 hours
35 hours
Indoor Fluorescent Lighting
109 hours
–––
(500 lux)
• The above exposure time values are all for reference only. Actual required exposure
times depend on lighting conditions.
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.
• This watch uses special rechargeable batteries to store power produced by the solar
cell, so regular battery replacement is not required. However, after very long use, the
rechargeable batteries may lose its ability to achieve a full charge. If you experience
problems getting the special rechargeable batteries to fully charge, contact your
dealer or CASIO distributor about having them replaced.
• Never try to remove or replace the watch’s special batteries yourself. Use of the
wrong type of batteries can damage the watch.
• All data stored in memory is deleted, and the current time and all other settings
return to their initial factory defaults whenever battery power drops to Level 4 and if
you should ever need to have the rechargeable batteries replaced.
• Turn on the watch’s Power Saving function and keep it in an area normally exposed
to bright light when storing it for long periods. This helps to keep the rechargeable
batteries from going dead.
3
4 minutes
Sunlight Through a Window (10,000 lux)
▲
Solar cell
Approximate Exposure Time
Outdoor Sunlight (50,000 lux)
▲
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.
Exposure Level (Brightness)
▲
This watch is equipped with a solar cell and special rechargeable batteries (secondary
batteries) that are charged by the electrical power produced by the solar cell. The
illustration shown below shows how you should position the watch for charging.
After a full charge, timekeeping remains enabled for up to about 12 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.
Alarm, hourly time signal,
illumination, auto light switch,
and display are disabled.
Though the hands of the watch
do not move, time continues to
be kept internally.
All functions, including timekeeping,
disabled and initialized.
Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Power Saving Function
When turned on, the Power Saving function automatically
puts the watch into a sleep state whenever it is left for a
certain period in an area where it is dark. The table below
shows how watch functions are affected by Power Saving.
Power saving
indicator
Elapsed Time in Dark
60 to 70 minutes
6 or 7 days
Functions
• LCD off
• Alarm, hourly time signal, and analog timekeeping
• LCD off, alarm and hourly time signal disabled
• Analog timekeeping stopped at 12 o’clock
• Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.
• The watch will not enter the sleep state between 6:00 AM and 10:59 PM. If the
watch is already in the sleep state when 6:00 AM arrives, however, it will remain in
the sleep state.
To recover from the sleep state
Perform any one of the following operations.
• Move the watch to a well-lit area.
• Press any button.
• Angle the watch towards your face for reading.
3
Operation Guide 3379
City Code Table
|||
||
||
|||
||
To turn Power Saving on and off
1. In the Timekeeping Mode, hold down A until the city
code starts to flash in the bottom dial, which indicates
|| |
the setting screen.
2. Press C nine times until the Power Saving on/off
screen appears.
3. Press D to toggle Power Saving on (ON) and off
|| |||
(OFF).
4. Press A to exit the setting screen.
) is on the display in
• The Power Saving indicator (
On/Off status
all modes while Power Saving is turned on.
|||||
Auto Return Features
• If you leave the watch in the Alarm or Hand Setting Mode for two or three minutes
without performing any operation, it automatically returns to the Timekeeping Mode.
• If you leave the watch with a flashing setting in a digital display area for two or three
minutes without performing any operation, the watch automatically exits the setting
screen.
Scrolling
The B and D buttons are used in various modes and setting screens to scroll
through data. 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.
Timekeeping
• Resetting the seconds to 00 while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to 00 without changing the minutes.
• The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.
• The year can be set in the range of 2000 to 2099.
• The watch’s built-in full automatic calendar makes allowances for different month
lengths and leap years. Once you set the date, there should be no reason to change
it except after you have the watch’s batteries replaced or when battery power drops
to Level 4.
• The current time for all city codes in 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.
City
Code
City
GMT
Differential
–––
HNL
ANC
Honolulu
Anchorage
–11.0
–10.0
–09.0
LAX
Los Angeles
–08.0
DEN
Denver
–07.0
CHI
Chicago
–06.0
NYC
New York
–05.0
CCS
RIO
–––
–––
GMT
LON
PAR
BER
ATH
CAI
JRS
JED
THR
DXB
KBL
KHI
DEL
DAC
RGN
BKK
Caracas
Rio De Janeiro
–04.0
–03.0
–02.0
–01.0
London
Paris
Berlin
Athens
Cairo
Jerusalem
Jeddah
Tehran
Dubai
Kabul
Karachi
Delhi
Dhaka
Yangon
Bangkok
+00.0
HKG
Hong Kong
SEL
TYO
ADL
SYD
NOU
WLG
Seoul
Tokyo
Adelaide
Sydney
Noumea
Wellington
+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
Other major cities in same time zone
Pago Pago
Papeete
Nome
San Francisco, Las Vegas, Vancouver,
Seattle/Tacoma, Dawson City
El Paso, Edmonton
Houston, Dallas/Fort Worth,
New Orleans, Mexico City, Winnipeg
Montreal, Detroit, Miami, Boston,
Panama City, Havana, Lima, Bogota
La Paz, Santiago, Port of Spain
Sao Paulo, Buenos Aires, Brasilia, Montevideo
Praia
Dublin, Lisbon, Casablanca, Dakar, Abidjan
Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,
Frankfurt, Vienna, Stockholm
Helsinki, Istanbul, Beirut, Damascus,
Cape Town
Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow
Shiraz
Abu Dhabi, Muscat
Male
Mumbai, Kolkata
Colombo
Jakarta, Phnom Penh, Hanoi, Vientiane
Singapore, Kuala Lumpur, Beijing, Taipei, Manila, Perth,
Ulaanbaatar
Pyongyang
Darwin
Melbourne, Guam, Rabaul
Port Vila
Christchurch, Nadi, Nauru Island
• Based on data as of December 2003.
* 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.
) appears on the bottom dial for times
• With the 12-hour format, the PM indicator (
in the range of noon to 11:59 p.m. and no indicator appears for times in the range of
midnight to 11:59 a.m.
• With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
any indicator.
Illumination Precautions
• Illumination may be hard to see when viewed under direct sunlight.
• Illumination automatically turns off whenever an alarm sounds.
• Frequent use of illumination runs down the batteries.
Auto light switch precautions
• The auto light switch is turned off automatically whenever battery power is at Level
3.
• Wearing the watch on the inside of your wrist, movement of your arm, or vibration of
your arm can cause frequent activation of the auto light switch and illumination of the
digital display areas. To avoid running down the batteries, turn off the auto light
switch whenever engaging in activities that might cause frequent illumination.
• Note that wearing the watch under your sleeve while the auto light switch is turned
on can cause frequent illumination of the digital display areas and can run down the
batteries.
More than 15 degrees
too high
• Illumination may not turn on if the face of the watch is
more than 15 degrees above or below parallel. Make
sure that the back of your hand is parallel to the ground.
• Illumination turns off after the preset illumination
duration (see “To set the digital time and date”), even if
you keep the watch pointed towards your face.
• Static electricity or magnetic force can interfere with
proper operation of the auto light switch. If illumination
does not turn on, try moving the watch back to the
starting position (parallel with the ground) and then tilt it
back towards you again. If this does not work, drop your
arm all the way down so it hangs at your side, and then
bring it back up again.
• Under certain conditions, illumination may not turn on until about one second after
you turn the face of the watch towards you. This does not necessarily indicate
malfunction of the auto light switch.
• You may notice a very faint clicking sound coming from the watch when it is shaken
back and forth. This sound is caused by mechanical operation of the auto light
switch, and does not indicate a problem with the watch.
4