To Determine The Watch's Current Mode; To Return To The Timekeeping Mode From Any Other Mode; To Select A Mode; Timekeeping - Casio 5087 Operation Manual

Operation Guide 5087
Selecting a Mode
With this watch, everything starts from the Timekeeping Mode.

To determine the watch's current mode

Check the position of the n Right Dial Hand as shown
under "To select a mode" (page E-31).
To return to the Timekeeping Mode from any other
mode
Hold down C for about two seconds until the watch beeps
twice.
E-30

Timekeeping

Use the Timekeeping Mode to view the current time and date. To enter the
Timekeeping Mode from any other mode, hold down C for about two seconds.
Hand Functions
z Hour Hand
x Second Hand
c Minute Hand
v 24-hour Hand: Indicates the current hour in the Home
b Left Dial Hands:
Indicate the current time in the World Time City (page
E-47) in 24-hour format.
n Right Dial Hand: Indicates the day of the week.
m Day
E-32
The watch will exit the setting mode automatically if
you do not perform any operation for about two or
three minutes.
For details about city codes, see the "City Code
Table" at the back of this manual.
2. To change the Home City setting, press
x Second Hand clockwise.
Keep pressing D until the x Second Hand is pointing
at the city code you want to select as your Home City.
Each time you select a city code, the z Hour Hand,
c Minute Hand, v 24-hour Hand and m Day move
to the current time and date for that city code. Do
not perform the next operation until these hands stop
moving.
B to toggle the time for the currently selected city code between STD
3. Press
(standard time)/DST (daylight saving time).
E-34
In the city code setting mode, the n Right Dial Hand indicates the current
daylight saving time setting as STD (standard time) or DST (daylight saving
time).
Note that you cannot switch between STD (standard time)/DST (daylight saving
time) while UTC is selected as your Home City.
3. After the setting is the way you want, press
Note
After 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.
Selecting some city codes makes it possible for the watch to receive the time
calibration signal for the corresponding area automatically. See page E-17 for
details.
* Coordinated Universal Time, the world-wide scientifi c standard of timekeeping. The
reference point for UTC is Greenwich, England.
E-36
2. Change the Home City and daylight saving time (DST)
settings, if you want.
For details about these settings, see steps 2 and 3
under "To confi gure Home City settings" (page E-33).
In the following steps, each press of C cycles
between settings as shown below.
Home city/DST
C.
3. Press
The watch will beep, and the x Second Hand and n Right Dial Hand will move
to their 12 o'clock positions. This is the time setting mode.
E-38
City time in 24-hour format.
D to move the
A to return to the Timekeeping Mode.
C C C
Hour/Minute Year Year
(tens) (ones)
C
C
Day Month
C

To select a mode

Press C to cycle between the modes as shown below. The n Right Dial Hand
indicates the currently selected mode.
C
Timekeeping Mode
The hand indicates
the day of the week
(SU, MO, TU, WE, TH,
FR, SA).
Alarm Mode
The hand points to ALM.
Confi guring Home City Settings
There are two Home City settings: actually selecting the Home City and selecting
either standard time or daylight saving time (DST).
To confi gure Home City settings
Note
This watch does not have a city code that corresponds
to Newfoundland.
1. In the Timekeeping Mode, keep
fi ve seconds) as the x Second Hand goes through the
following sequence.
Moves to Y (or YES for some models) or N (NO) to
indicate the last signal reception result, then to R
(READY), and then to the city code of the currently
selected Home City.
This indicates the city code setting mode.
In the city code setting mode, the n Right Dial Hand indicates the current
daylight saving time setting as STD (standard time) or DST (daylight saving
time).
Note that you cannot switch between STD (standard time)/DST (daylight saving
time) while UTC is selected as your Home City.
4. After all the settings are the way you want, press
Mode.
To toggle the Home City time between standard time and daylight saving time
1. Perform the step 1 under "To confi gure Home City settings" on page E-33.
Each time you select a city code, the z Hour Hand, c Minute Hand, and v 24-
hour Hand move to the current time for that city code. Do not perform the next
operation until these hands stop moving.
B to toggle the time for the city code of the currently selected Home City
2. Press
between STD (standard time)/DST (daylight saving time).
Confi guring Current Time and Date Settings Manually
You can confi gure current time and date settings manually when the watch is unable
to receive a time calibration signal.
To change the current time setting manually
1. In the Timekeeping Mode, keep
fi ve seconds) as the x Second Hand goes through the
following sequence.
Moves to Y (or YES for some models) or N (NO) to
indicate the last signal reception result, then to R
(READY), and then to the city code of the currently
selected Home City.
At this time, the n Right Dial Hand will indicate the
Home City's current daylight saving time setting (STD
or DST).
D (+) and B (–) to change the time (hour and minute) setting.
4. Use
Each press of either button will move the hands ( z Hour Hand and c Minute
Hand) one minute.
Holding down D or B will start high-speed z Hour Hand and c Minute Hand
movement in the applicable direction. To stop high-speed hand movement,
press any button.
The v 24-hour Hand and z Hour Hand move in sync with each other.
When setting the time, make sure that the v 24-hour Hand indicates the proper
a.m./p.m. hour.
If you want to change the date setting at this time, press C and perform the
procedure starting from step 3 under "To change the current date setting
manually" (page E-40).
5. After the time setting is the way you want, press
Mode.
This will cause the x Second Hand to move automatically to 12 o'clock and
resume movement from there.
Stopwatch Mode
The hand points to 0.
World Time Mode
The hand points to
STD or DST.
E-31
A depressed (for about
E-33
A to return to the Timekeeping
E-35
A depressed (for about
E-37
A to return to the Timekeeping
E-39