Directorio Marcas Casio 2790
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Manual de instrucciones Casio - 2790

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Operation Guide 2790



Getting Acquainted

Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to carefully read this manual 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

Be sure to read “Battery” for important information you need to know when
exposing the watch to bright light.

If the digital display of the watch is blank...

If the Power Saving on indicator (PS) is on the display
(either flashing or not flashing), it means that the
display is blank because the watch’s Power Saving
function has turned off the display to conserve
. Power Saving automatically turns off the display
and enters a sleep state whenever your watch is left for
a certain period 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 recovers 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

About This Manual

Button operations are indicated using the letters shown
in the illustration.

For the sake of simplicity, the sample displays in this
manual do not show the analog hands of the watch.

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.

Timekeeping Mode

Alarm Mode

Stopwatch Mode

Dual Time Mode

Hand Setting Mode









To do this:

Reset the seconds to


Toggle illumination duration between three seconds
(3" displayed) and one second (3" not displayed)

Change the hour or minutes

Change the year

Change the month or day

Do this:










General Guide



to change from mode to mode.

In any mode, press


to illuminate the display.


This watch features both digital and analog timekeeping. Changing the digital time
setting causes the analog setting to be adjusted automatically to match the digital time.

Whenever you need to adjust both the digital and the analog time settings, make
sure you adjust the digital setting first.

In the Timekeeping Mode, press


to toggle the display between the date screen

and the time screen.

Day of week


Month – Day

Hour : Minutes

PM indicator

Minute hand

Hour hand


Press .

Date Screen

Time Screen

Digital Time and Date

Use the Timekeeping Mode to set and view a digital display of the current time and
date. When setting the digital time, you can also specify the illumination duration.

To set the digital time and date

1. In the Timekeeping Mode, hold down


until the

seconds start to flash, which indicates the setting

The hour hand and minute hand of the watch do not
move while the setting screen is on the display.

2. Press


to move the flashing in the sequence shown

below to select the other settings.

Seconds/Illumination duration






3. When the setting you want to change is flashing, use




to change it as

described below.

4. Press


to exit the setting screen.

When you use the above procedure to set the digital display time, the hands of the
analog timepiece normally adjust according to your setting.

For more information about illumination duration, see “Display Illumination”.

Resetting the seconds to


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


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 battery replaced.

To toggle between 12-hour and 24-hour timekeeping

In the Timekeeping Mode, press


to toggle between 12-hour timekeeping (indicated

by A or P on the display), or 24-hour timekeeping.

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 the A (AM) 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.

The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all modes.

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