G-Shock GW-1800DJ-1A9 User Manual
Module No. 4359
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.
• Be sure to keep all user documentation handy for future reference.
Keep the watch exposed to bright light
Bright Light
l
l
l
l
l
l
l
Solar cell
The electricity generated by the solar cell of the watch is
l
l
stored by a built-in battery. Leaving or using the watch where
l
l
it is not exposed to light causes the battery to run down.
Make sure the watch is exposed to light as much as possible.
•
When you are not wearing the watch on your wrist,
position the face so it is pointed at a source of bright light.
• You should try to keep the watch outside of your sleeve
as much as possible. Charging is reduced significantly if
the face is even only partially covered.
E-1
• The watch continues to operate, even when it is not exposed to light. Leaving the
watch in the dark can cause the battery to run down, which will result in some watch
functions to be disabled. If the battery goes dead, you will have to re-configure watch
settings after recharging. To ensure normal watch operation, be sure to keep it
exposed to light as much as possible.
Battery charges in the light. Battery discharges in the dark.
Solar cell
(Converts light to
electrical power.)
E-2
Bright Light
LEVEL 1
LEVEL 2
LEVEL 3
Charge
LEVEL 4
Rechargeable battery
Electrical
energy
All
functions
enabled
Dis-
charge
LEVEL 1
LEVEL 2
LEVEL 3
LEVEL 4
Some or all
functions
disabled
• The actual level at which some functions are disabled depends on the watch model.
• Frequent display illumination can run down the battery quickly and require charging.
The following guidelines give an idea of the charging time required to recover from a
single illumination operation.
Approximately 5 minutes exposure to bright sunlight coming in through a window
Approximately 50 minutes exposure to indoor fluorescent lighting
• Be sure to read “Power Supply” (page E-48) for important information you
need to know when exposing the watch to bright light.
If the display of the watch is blank...
If the display of the watch is blank, it means that the Power Saving has turned off the
display to conserve power.
• See “Power Saving” (page E-55) for more information.
Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage
or loss suffered by you or any third party arising through the use of this product or
its malfunction.
E-3
About This Man ual
E-4
• 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.
• Most of the display examples in this manual show only
the digital display, without the analog hands.
• 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.
• To ensure that this watch provides you with the years of
service for which it is designed, be sure to carefully read
and follow the instructions under “Operating
Precautions” and “User Maintenance”.
Contents
General Guide ......................................................................................................... E-8
Radio-controlled Timekeeping ............................................................................. E-10
World Time ............................................................................................................. E-28
Countdown Timer .................................................................................................. E-31
Stopwatch .............................................................................................................. E-33
Alarm ...................................................................................................................... E-35
Illumination ............................................................................................................ E-38
Timekeeping .......................................................................................................... E-39
Power Supply ........................................................................................................ E-48
Reference .............................................................................................................. E-55
Specifications ....................................................................................................... E-64
Operating Precautions ......................................................................................... E-66
User Maintenance ................................................................................................. E-75
E-5
Procedure Lookup
The following is a handy reference list of all the operational procedures contained in
this manual.
To specify your Home City ...................................................................................E-12
To display the digital time ....................................................................................E-13
To display the last signal screen .........................................................................E-14
To perform manual receive .................................................................................. E-23
To toggle auto receive on or off .......................................................................... E-24
To view the time in another city........................................................................... E-29
To select standard time or Daylight Saving Time for a World Time City .......... E-29
To set the countdown start time .......................................................................... E-32
To use the countdown timer ................................................................................ E-32
E-6
To measure times with the stopwatch ................................................................ E-34
To set the alarm time ............................................................................................ E-36
To test the alarm ................................................................................................... E-36
To turn the Daily alarm and the Hourly Time Signal on and off ........................E-37
To turn on illumination ......................................................................................... E-38
To set the current digital time and date manually ............................................. E-40
To change the Daylight Saving Time (summer time) setting ............................ E-44
To adjust the analog time .....................................................................................E-46
To recover from the sleep state ........................................................................... E-56
To turn Power Saving on and off ......................................................................... E-57
E-7
General Guide
• Press C to change from mode to mode.
• In any mode (except a setting mode), press B to illuminate the face of the watch.
World Time Mode
NYCNYC
NYC
Timekeeping Mode
Press C.
NYCNYC
▲
▲
E-8
Stopwatch ModeCountdown Timer Mode
▲
Hand Setting Mode
▲
Alarm Mode
▲
▲
E-9
Radio-controlled Timekeeping
Hour hand
Month – Day
E-10
Minute hand
Seconds
This watch receives a time calibration signal and updates
its time setting accordingly. The time calibration signal
includes both Standard Time and Daylight Saving Time
(summer time) data.
• This watch is designed to pick up the time calibration
transmitted in Japan (Fukuoka/Saga and Fukushima)
and the United States (Fort Collins, Colorado).
• See the information under “Signal Receive
Troubleshooting” (page E-26) if you experience problems
with time calibration signal reception.
Current Time Setting
This watch adjusts its time setting automatically in accordance with a time calibration
signal. You also can perform a manual procedure to set the time and date, when
necessary.
• The first thing you should do after purchasing this watch is to specify your
Home City (the city where you normally will use the watch). For more
information, see “To specify your Home City” on page E-12.
• When using the watch outside the areas covered by the time signal transmitters, you
will have to adjust the current time setting manually as required. See
current digital time and date manually” (page E-40) for more information about manual
time settings.
• The U.S. time calibration signal can be picked up by the watch while in North
America. The term “North Amer ica” in this manual refers to the area that consists of
Canada, the continental United States, and Mexico.
“To set the
E-11
To specify your Home City
l
l
l
l
l
l
l
l
l
l
l
l
l
l
City code
E-12
1. In the Timekeeping Mode, hold down A until the
currently set city code starts to flash in the upper left
display. This is the Home City setting mode.
2. Use D (eastward) and B (westward) to scroll through
the city codes until the one you want is displayed.
SEL, TYO : Seoul, Tokyo
YVR, LAX : Vancouver, Los Angeles
YEA, DEN : Edmonton, Denver
MEX, YWG, CHI : Mexico City, Winnipeg, Chicago
MIA, YTO, NYC : Miami, Toronto, New York
YHZ : Halifax
YYT : St. Johns
3. Press A to exit the setting mode.
• Normally, your watch should show the correct time as soon as you select your Home
City Code. If it does not, it should adjust automatically after the next auto receive (in
the middle of the night). You also can perform manual receive (page E-23) or you
can set the time manually (page E-40).
• If you are in an area that does not use Daylight Saving Time (summer time), turn off
the DST setting (page E-44).
To display the digital time
• In the Timekeeping Mode, press A to cycle the contents of the upper left display as
shown below.
Press A.
Day of week
▲
Press A.
PM indicator
▲
Month – Day
Hour : Minutes
E-13
To display the last signal screen
• In the Timekeeping Mode, press D to toggle the upper left display between the last
signal information shown below. These screens show the time and date of the last
successful time calibration signal reception.
Reception time
Reception date
Last Signal
Screen
E-14
Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration signal:
auto receive and manual receive.
• Auto Receive
With auto receive, the watch receives the time calibration signal automatically six
times a day. When any auto receive is successful, remaining auto receive
operations are not performed. For more information, see “About Auto Receive”
(page E-20).
• Manual Receive
Manual receive lets you start a time calibration signal reception with the press of a
button. For more information, see “To perform manual receive” on page E-23.
E-15
Important!
• When getting ready to receive the time calibration signal, position the watch as
shown in the nearby illustration, with its 12 o’clock side pointing towards a window.
This watch is designed to receive a time calibration signal late at night. Because of
this, you should place the watch near a window as shown in the illustration when you
take it off at night. Make sure there are no metal objects nearby.
12 o’clock
or
• Make sure the watch is facing the right way.
E-16
• Proper signal reception can be difficult or even impossible under the conditions listed
below.
Inside or
among
buildings
• Signal reception normally is better at night than during the day.
• Time calibration signal reception takes from two to seven minutes, but in some
cases it can take as long as 14 minutes. Take care that you do not perform any
button operations or move the watch during this time.
Inside a
vehicle
Near
household
appliances,
office
equipment,
or a mobile
phone
Near a
construction
site, airport, or
other sources
of electrical
noise
Near hightension
power lines
Among or
behind
mountains
E-17
• The time calibration signal the watch will attempt to pick up depends on its current
Home City code setting as shown below.
Home City Code
SEL, TYO
YVR, LAX, YEA, DEN,
MEX, YWG, CHI, MIA,
YTO, NYC, YHZ, YYT
• Calibration signal reception is disabled while a countdown timer operation is in
progress.
E-18
Transmitter
Fukushima (Japan)
Fukuoka/Saga (Japan)
Fort Collins, Colorado
(the United States)
Frequency
40.0 kHz
60.0 kHz
60.0 kHz
Approximate Reception Ranges
U.S. Signal
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
500 kilometers
Fukuoka/Saga
1,000 kilometers
Japan Signals
500 kilometers
Fukushima
1,000 kilometers
E-19
• Signal reception may not be possible at the distances that are further than those
noted below during certain times of the year or day. Radio interference also may
cause problems with reception.
Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)
Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)
• Even when the watch is within the reception range of the transmitter, signal
reception will be impossible if the signal is blocked by mountains or other geological
formations between the watch and signal source.
• Signal reception is affected by weather, atmospheric conditions, and seasonal
changes.
About Auto Receive
With Auto Receive, the watch performs the receive operation each day automatically
up to six times between the hours of midnight and 5 a.m. (according to the
Timekeeping Mode time). When any receive operation is successful, none of the other
receive operations for that day are performed.
E-20
Note
• When a calibration time is reached, the watch will receive the calibration signal only
if it is in either the Timekeeping Mode or World Time Mode. Reception is not
performed if a calibration time is reached while you are configuring settings.
• Auto receive of the calibration signal is designed to be performed early in the
morning, while you sleep (provided that the Timekeeping Mode time is set correctly).
Before going to bed for the night, remove the watch from your wrist, and put it in a
location where it can receive the signal easily.
• Remember that reception of the calibration signal depends on the current time in
your Home City, as kept in the Timekeeping Mode.
E-21
About the Receiving Indicator
The receiving indicator shows the strength of the calibration signal being received. For
best reception, be sure to keep the watch in a location where signal strength is
strongest.
Receiving indicator
Weak
• Even in an area where signal strength is strong, it takes about 10 seconds for signal
reception to stabilize enough for the receiving indicator to indicate signal strength.
• Use the receiving indicator as a guide for checking signal strength and for finding the
best location for the watch during signal reception.
E-22
(Level 0)
Strong
(Level 3)
To perform manual receive
1. Place the watch on a flat surface so its top (12 o’clock)
is pointed toward an outside window (page E-16).
2. In the Timekeeping Mode, hold down D for about two
seconds until the watch beeps.
3. Release D when the watch beeps. The upper left
display will shows
is in progress.
RC! to indicate that signal reception
• To interrupt a reception and return to the Timekeeping Mode, press D.
About the manual receive result indicator
• When signal reception is successful,
watch adjusts its time setting accordingly. After that, the last signal screen will
appear in the upper left display (page E-14).
• After signal reception is successful, the Level 3 indicator (page E-22) will be
displayed in the bottom display in all modes. The Level 3 indicator will remain
displayed until the first signal receive operation of the following day.
GET appears in the upper left display and the
E-23
• ERR will appear momentarily in the upper left display if the signal receive operation
fails. The watch will not adjust its time setting in this case. After that, the upper left
display will change to the last signal screen, which shows the time and date of the
last successful signal receive operation (page E-14).
• To return to the Timekeeping Mode while the last signal screen is displayed in the
upper left display, press D. The watch will return to the Timekeeping Mode
automatically if you do not press any button for two or three minutes.
• Signal reception is disabled while a countdown timer operation is in progress.
To toggle auto receive on or off
E-24
On/Off status
1. In the Timekeeping Mode, press D to display the last
signal screen in the upper left display (page E-14).
•
The upper left display will return to normal timekeeping
if you press
D
operation for two or three minutes.
2. Hold down A until the current auto receive setting (
for on or for off) flashes in the upper right display.
This is the setting mode.
or if you do not perform any button
Loading...