Casio G-Shock Baby-G BA-125-1AER User manual

Operation Guide 5457
E-9
Hand Setting Mode
C
Stopwatch Mode Alarm Mode
C C
E-8
Selecting a Mode
xPress Cto cycle between the modes as shown below.
xIn any mode (except when a setting mode, with flashing digits is on the display),
press Bto illuminate the display.
Timekeeping Mode
C
World Time Mode Countdown Timer Mode
C C
E-7
Mode Reference Guide
Your watch has 6 “modes”. The mode you should select depends on what you
want to do.
To do this: Enter this mode: See:
xView the current date in the Home City
xConfigure Home City and daylight saving time (DST)
settings
xConfigure time and date settings
Timekeeping Mode E-11
View the current time in one of 27 cities
(29 time zones) around the globe World Time Mode E-19
Use the countdown timer Countdown Timer Mode E-21
Use the stopwatch to measure elapsed time Stopwatch Mode E-27
Set an alarm time Alarm Mode E-30
Adjust the analog hands Hand Setting Mode E-34
E-6
To test the alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-33
To turn an alarm and the Hourly Time Signal on and off . . . . . . . . . . . . . . . . . E-33
To stop the alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-33
Adjusting the Analog Hand Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-34
To adjust the analog time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-34
Illumination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-36
To turn on illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-36
To change the illumination duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-37
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-38
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-39
Operating Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-41
User Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-52
E-5
To specify standard time or daylight saving time (DST) for a city. . . . . . . . . . . E-20
Countdown Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-21
To enter the Countdown Timer Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-21
To configure the countdown timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-24
To perform a countdown timer operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-26
To stop the alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-26
Using the Stopwatch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-27
To enter the Stopwatch Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-27
To perform an elapsed time operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-28
To pause at a split time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-28
To measure two finishes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-28
Using the Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-30
To enter the Alarm Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-31
To set an alarm time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-32
E-4
Contents
About This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2
Things to check before using the watch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-3
Mode Reference Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-7
Timekeeping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-11
Configuring Home City Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-12
To configure Home City settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-12
To change the Daylight Saving Time (summer time) setting . . . . . . . . . . . . . . E-14
Adjusting the Digital Time and Date Settings . . . . . . . . . . . . . . . . . . . . . . . . . E-15
To configure the digital time and date settings . . . . . . . . . . . . . . . . . . . . . . . . E-15
Checking the Current Time in a Different Time Zone . . . . . . . . . . . . . . . . . . . E-19
To enter the World Time Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-19
To view the time in another time zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-19
E-3
Things to check before using the watch
1. Check the Home City and the daylight saving time (DST) setting.
Use the procedure under “To configure Home City settings” (page E-12) to configure
your Home City and daylight saving time settings.
Important!
xProper World Time Mode data depend on correct Home City, time, and date
settings in the Timekeeping Mode. Make sure you configure these settings
correctly.
2. Set the current time.
xSee “Adjusting the Digital Time and Date Settings” (page E-15).
The watch is now ready for use.
E-2
About This Manual
xDepending 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.
xButton operations are indicated using the letters shown
in the illustration.
xNote that the product illustrations in this manual are
intended for reference only, and so the actual product
may appear somewhat different than depicted by an
illustration.
E-1
ENGLISH
Congratulations upon your selection of this CASIO watch.
MA1504-EA © 2015 CASIO COMPUTER CO., LTD.

Operation Guide 5457
E-19
Checking the Current Time in a Different Time Zone
You can use the World Time Mode to view the current
time in one of 29 time zones (27 cities) around the
globe. The city that is currently selected in the World
Time Mode is called the “World Time City”.
To enter the World Time Mode
Use Cto select the World Time Mode as shown on
page E-8.
To view the time in another time zone
In the World Time Mode, use D(East) to scroll through
city codes.
Currently selected
World Time City
Current time in the currently
selected World Time City
E-18
Note
xFor information about selecting a Home City and configuring the DST setting, see
“Configuring Home City Settings” (page E-12).
xWhile 12-hour format is selected for timekeeping, a P(PM) indicator will appear
for times from noon to 11:59 p.m. No indicator appears for times from midnight to
11:59 a.m. With 24-hour format, time is displayed from 0:00 to 23:59, without any
P(PM) indicator.
xThe watch’s built-in full automatic calendar makes allowances for different month
lengths and leap years. Once you set the date, there should be no reason to
change it except after you have the watch’s battery replaced.
xThe day of the week changes automatically when the date changes.
E-17
3. When the timekeeping setting you want to change is flashing, use Dand/or B
to change it as described below.
Screen To do this: Do this:
Reset the seconds to 00 Press D.
Toggle between Daylight Saving Time ( )
and Standard Time ( )Press D.
Change the city code Use D(East) and B(West).
Change the hour or minute Use D(+) and B(–).
Toggle between 12-hour (12H) and 24-hour
(24H) timekeeping Press D.
Change the year, month, or day Use D(+) and B(–).
4. Press Ato exit the setting mode.
E-16
2. Press Cto move the flashing in the sequence shown below to select the other
settings.
Seconds
C
DST
C
Home City Code
C
Hour
C
Minutes
CC
Illumination Duration
C
Day
C
Month
C
Year
C
12/24-Hour Format
xThe following steps explain how to configure timekeeping settings only.
E-15
Adjusting the Digital Time and Date Settings
Use the procedure below to adjust the digital time and date settings.
Note
xAfter adjusting the digital time and date setting, be sure to adjust the analog hands
so the settings match.
xSee “Adjusting the Analog Hand Setting” (page E-34).
To configure the digital time and date settings
1. In the Timekeeping Mode, hold down Afor about two
seconds until the seconds start to flash. This is the
setting mode.
Seconds
E-14
To change the Daylight Saving Time (summer time) setting
1. In the Timekeeping Mode, hold down Afor about
two seconds until the seconds start to flash. This is
the setting mode.
2. Press Cto display the DST setting mode.
3. Press Dto toggle between Daylight Saving Time ( )
and Standard Time ( ).
4. After the setting is the way you want, press Ato
return to the Timekeeping Mode.
xThe DST indicator appears to indicate that Daylight
Saving Time is turned on.
DST indicator
E-13
2. Press Ctwice to move the flashing to the city code.
xFor details about city codes, see the “City Code
Table” at the back of this manual.
3. Press D(East) and B(West) to select the city code
you want to use as your Home City.
xKeep pressing Dor Buntil the city code you want
to select as your Home City appears on the display.
4. After the setting is the way you want, press Ato
return to the Timekeeping Mode.
Note
xAfter you specify a city code, the watch will use UTC* offsets in the World Time
Mode to calculate the current time for other time zones based on the current time
in your Home City.
* Coordinated Universal Time, the world-wide scientific standard of timekeeping.
The reference point for UTC is Greenwich, England.
City Code
E-12
Configuring Home City Settings
There are two Home City settings: actually selecting the Home City, and selecting
either standard time or daylight saving time (DST).
Note
xAfter configuring Home City and/or Daylight Saving Time
(summer time) settings, be sure to adjust the analog
hands to match the digital settings.
xSee “Adjusting the Analog Hand Setting” (page E-34).
To configure Home City settings
1. In the Timekeeping Mode, hold down Afor about two
seconds until the seconds start to flash. This is the
setting mode.
xThe watch will exit the setting mode automatically if
you do not perform any operation for about two or
three minutes.
Seconds
E-11
Timekeeping
Use the Timekeeping Mode to set and view the current
time and date.
xEach press of Dcycles the digital display contents as
shown below.
Day of the Week Month-Day Hour : Minutes
D D
D
PM indicator
Hour
Day of week
Minutes
Seconds
E-10
General Functions (All Modes)
The functions and operations described in this section can be used in all of the
modes.
Auto Return Features
If you leave a setting mode with flashing digits on the display for two or three
minutes without performing any operation, the watch exits the setting mode
automatically.
Initial Screens
When you enter the World Time Mode or Alarm Mode, the data you were viewing
when you last exited the mode appears first.
Scrolling
The Band Dbuttons are used on the setting mode 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.

Operation Guide 5457
E-29
Note
xThe Stopwatch Mode can indicate elapsed time up to 59minutes, 59.99seconds.
xAn ongoing elapsed time measurement operation will continue internally even if
you change to another mode. However, if you exit the Stopwatch Mode while a
split time is displayed, the split time will not be displayed when you return to the
Stopwatch Mode.
E-28
To perform an elapsed time operation
DD D D A
Start Stop Resume (Stop) Reset
To pause at a split time
DA A D A
Start Split
(SPL displayed)
Split release Stop Reset
To measure two finishes
D A D A A
Start Split
(SPL displayed)
First runner finishes.
Display time of first
runner.
Stop
Second runner
finishes.
Split release
Display time of
second runner.
Reset
E-27
Using the Stopwatch
The stopwatch measures elapsed time, split times, and two finishes.
To enter the Stopwatch Mode
Use Cto select the Stopwatch Mode as shown on
page E-9.
SPL indicator
1/100 second
Minutes
Seconds
E-26
To perform a countdown timer operation
DD D D A
Start Stop Resume (Stop) Reset
xBefore starting a countdown timer operation, check to make sure that a
countdown operation is not in progress (indicated by the seconds counting down).
If it is, press Dto stop it and then Ato reset to the countdown start time.
To stop the alarm
Press any button.
E-25
3. When the setting you want to change is flashing, use Band Dto change it as
described below.
Setting Screen Button Operation
Start Time
Use D(+) and B(–) to change the setting.
xYou can set a start time in the range of 1 to 60minutes in
1-minute increments.
Auto-repeat Press Dto toggle auto-repeat on ( displayed) and off
(displayed).
Progress Beeper Press Dto toggle the progress beeper on ( ) and off
().
4. Press Ato exit the setting mode.
xYou can also perform steps 1 and 2 of the above procedure whenever you need
to view the current auto-repeat and progress beeper settings.
E-24
To configure the countdown timer
1. While the countdown start time is on the display in
the Countdown Timer Mode, hold down Auntil the
current countdown start time starts to flash, which
indicates the setting mode.
xIf the countdown start time is not displayed, use the
procedure under “To perform a countdown timer
operation” (page E-26) to display it.
2. Press Cto move the flashing in the sequence shown below to select other
settings.
Start Time Auto-repeat Progress Beeper
CC
C
E-23
Countdown End Beeper
The countdown end beeper lets you know when the countdown reaches zero.
xWhen the progress beeper is turned off, the countdown end beeper sounds for
about 10seconds, or until you press any button to stop it.
xWhen the progress beeper is turned on, the countdown end beeper sounds for
about one second.
Progress Beeper
When the progress beeper is turned on, the watch uses beeps to signal countdown
progress as described below.
xStarting from five minutes before the end of the countdown, the watch emits four
short beeps at the top of each countdown minute.
x30seconds before the end of the countdown, the watch emits four short beeps.
xThe watch emits a short beep for each of the last 10seconds of the countdown.
xIf the countdown start time is six minutes or greater, the watch emits a short beep
for each second of the final 10seconds before the five-minute point is reached.
Four short beeps are emitted to signal when the five-minute point is reached.
E-22
xSee “To configure the countdown timer” on page E-24 for information about setting
up the timer.
Auto-repeat
When auto-repeat is turned on, the countdown automatically restarts from the
countdown start time when it reaches zero. If left running, the countdown is
repeated a total of eight times, after which it stops automatically.
When auto-repeat is turned off, the countdown stops when it reaches zero and the
display shows the original countdown start time.
xPressing Dwhile an auto-repeat countdown is in progress pauses the current
countdown. You can resume the auto-repeat countdown by pressing D, or you
can press Ato reset to the countdown time starting value.
Countdown Timer Beeper Operations
The watch beeps at various times during a countdown so you can keep informed
about the countdown status without looking at the display. The following describes
the types of beeper operations the watch performs during a countdown.
E-21
Countdown Timer
The countdown timer can be set within a range of
one minute to 60minutes. An alarm sounds when the
countdown reaches zero. The countdown timer also has
an auto-repeat feature and a progress beeper that signals
the progress of the countdown.
To enter the Countdown Timer Mode
Use Cto select the Countdown Timer Mode as shown
on page E-8.
Configuring the Countdown Timer
The following are the settings you should configure
before actually using the countdown timer.
Countdown start time; Auto-repeat on/off; Progress
beeper on/off
SecondsMinutes
E-20
To specify standard time or daylight saving time (DST) for a city
1. In the World Time Mode, use D(East) to display the
city code (time zone) whose Standard Time/Daylight
Saving Time setting you want to change.
2. Hold down Afor about two seconds.
xThis toggles the city code you selected in step1
between Daylight Saving Time (DST indicator
displayed) and standard time (DST indicator not
displayed).
xUsing the World Time Mode to change the DST setting of the city code that is
selected as your Home City also will change the Timekeeping Mode time DST
setting.
xNote that you cannot switch between standard time/daylight saving time (DST)
while GMT is selected as the World Time City.
xThe standard time/daylight saving time (DST) setting affects only the currently
selected time zone. Other time zones are not affected.
DST indicator

Operation Guide 5457
E-39
Specifications
Accuracy at normal temperature: ± 30 seconds a month
Digital Timekeeping: Hour, minutes, seconds, p.m. (P), month, day, day of the
week
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2039
Other: 3 screen formats (Day of the Week, Month - Day, Hour : Minutes); Home
City code (can be assigned one of 31 city codes); Standard Time/Daylight
Saving Time (summer time)
Analog Timekeeping: Hour, minutes (hand moves every 20 seconds)
World Time: 27 cities (29 time zones)
Other: Daylight Saving Time/Standard Time
Stopwatch:
Measuring unit: 1/100 second
Measuring capacity: 59' 59.99"
Measuring modes: Elapsed time, split time, two finishes
E-38
Troubleshooting
Time Setting
■The current time setting is off by hours.
Your Home City setting may be wrong (page E-12). Check your Home City setting and
correct it, if necessary.
■The current time setting is off by one hour.
You may need to change your Home City’s standard time/daylight saving time
(DST) setting. Use the procedure under “Adjusting the Digital Time and Date
Settings” (page E-15) to change the standard time/daylight saving time (DST) setting.
World Time Mode
■The time for my World Time City is off in the World Time Mode.
This could be due to incorrect switching between standard time and daylight saving
time. See “To specify standard time or daylight saving time (DST) for a city” (page E-20)
for more information.
E-37
To change the illumination duration
1. In the Timekeeping Mode, hold down Auntil the seconds start to flash. This is
the setting mode.
2. Press Cnine times so the illumination duration setting mode is on the display.
3. Press Dto toggle the illumination duration between 1.5 seconds ( ) and
3seconds ( ).
4. After the settings are the way you want, press Ato exit the setting mode.
Illumination Precautions
xIllumination may be hard to see when viewed under direct sunlight.
xIllumination turns off automatically whenever an alarm sounds.
xFrequent use of illumination runs down the battery.
E-36
Illumination
The face of the watch is illuminated for easy reading in
the dark.
To turn on illumination
In any mode (except when a setting mode, with flashing
digits is on the display), press Bto illuminate the display.
xYou can use the procedure below to select either
1.5seconds or 3 seconds as the illumination duration.
When you press B, the display will remain illuminated
for about 1.5seconds or 3 seconds, depending on the
current illumination duration setting.
E-35
xIf you need to advance the analog time setting a long way, hold down Duntil
the time starts advancing at high speed, and then press B. This locks the high-
speed hand movement, so you can release the two buttons. High-speed hand
movement continues until you press any button. 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 Ato exit the setting mode.
xThe watch will automatically adjust the minute hand slightly to match its internal
second count when you exit the setting mode.
xTo return to the Timekeeping Mode, press C.
E-34
Adjusting the Analog Hand Setting
Use the following procedure to adjust the analog hands so their settings match the
digital time.
To adjust the analog time
1. Use Cto select the Hand Setting Mode as shown
on page E-9.
2. Hold down Auntil the current digital time starts to
flash, which indicates the analog setting mode.
3. Press Dto advance the analog time setting by
20seconds.
xHolding down Dadvances the analog time setting
at high speed.
E-33
5. Press Ato exit the setting mode.
To test the alarm
In the Alarm Mode, hold down Dto sound the alarm.
To turn an alarm and the Hourly Time Signal on and off
1. In the Alarm Mode, use Dto select an alarm or the
Hourly Time Signal.
2. When the alarm or the Hourly Time Signal you want is
selected, press Ato toggle it between on and off.
xThe alarm on indicator (when any alarm is on),
snooze alarm indicator (when the snooze alarm is
on), and the Hourly Time Signal on indicator (when
the Hourly Time Signal is on) are shown on the
display in all modes.
To stop the alarm
Press any button.
Snooze alarm indicator
Hourly time signal
on indicator
E-32
To set an alarm time
1. In the Alarm Mode, use Dto scroll through the alarm
screens until the one whose time you want to set is
displayed.
AL1 AL3 SNZAL2 AL4 SIG
DDDDD
D
2. Hold down Afor about two seconds until the alarm time starts to flash. This is
the setting mode.
3. Press Cto move the flashing between the hour and minute settings.
4. While a setting is flashing, use D(+) and B(–) to change it.
xWhen setting the alarm time using the 12-hour format, take care to set the time
correctly as a.m. (no indicator) or p.m. (Pindicator).
Alarm ON/OFF indicator
E-31
To enter the Alarm Mode
Use Cto select the Alarm Mode as shown on page E-9.
xThe snooze alarm screen is indicated by SNZ, while the other alarm screens are
numbered AL1 through AL4. The Hourly Time Signal screen is indicated by SIG.
xWhen you enter the Alarm Mode, the data you were viewing when you last exited
the mode appears first.
E-30
Using the Alarm
You can set five independent daily alarms. When a
daily alarm is turned on, an alarm tone will sound
for about 20seconds each day when the time in the
Timekeeping Mode reaches the preset alarm time. One
of the alarms is a snooze alarm, while the other four
are one-time alarms. The snooze alarm operation will
repeat every five minutes, up to seven times.
You can also turn on an Hourly Time Signal, which will
cause the watch to beep twice every hour on the hour.
Alarm number
Alarm time (Hour : Minutes)

Operation Guide 5457
E-40
Countdown Timer:
Measuring unit: 1 second
Countdown range: 60 minutes
Countdown start time setting range: 1 to 60 minutes (1-minute increments)
Alarms: 5 daily alarms (with 1 snooze alarm); Hourly time signal
Illumination: LED (light-emitting diode); selectable illumination duration
(approximately 1.5 seconds or 3 seconds)
Power Supply: Two silver oxide batteries (Type: SR726W)
Approximately 2 years on type SR726W (assuming alarm operation 20seconds
per day and one illumination operation 1.5seconds per day)
Frequent use of illumination runs down the battery.
L-3
x Above table data is current as of December 2014.
*This watch does not reflect the change in the Caracas, Venezuela (CCS) time offset
to –4.5. For Caracas, Venezuela, please use the –4.0 offset time zone.
x This table shows the city codes of this watch.
x The rules governing global times (UTC offset and GMT differential) and summer
time are determined by each individual country.
L-2
City Code Table
City
Code City UTC Offset/ GMT Differential
– – – –11
HNL Honolulu –10
ANC Anchorage –9
LAX Los Angeles –8
DEN Denver –7
CHI Chicago –6
NYC New York –5
CCS* Caracas –4
RIO Rio De Janeiro –3
– – – –2
– – – –1
GMT 0
LON London
PAR Paris +1
CAI Cairo +2
JRS Jerusalem
City
Code City UTC Offset/ GMT Differential
JED Jeddah +3
THR Tehran +3.5
DXB Dubai +4
KBL Kabul +4.5
KHI Karachi +5
DEL Delhi +5.5
DAC Dhaka +6
RGN Yangon +6.5
BKK Bangkok +7
HKG Hong Kong +8
TYO Tokyo +9
ADL Adelaide +9.5
SYD Sydney +10
NOU Noumea +11
WLG Wellington +12
L-1
City Code Table