Casio G-Shock G7900A-7 Operation Manual

MA0905-EB
Getting Acquainted
• The measurement functions built into this watch are not intended for use in
taking measurements that require professional or industrial precision. Values
produced by this watch should be considered as reasonably accurate
representations only.
• The longitude, lunitidal interval, Moon phase indicator and tide graph data that
appear on the display of this watch are not intended for navigation purposes.
Always use proper instruments and resources to obtain data for navigation
purposes.
• This watch is not an instrument for calculating low tide and high tide times. The
tide graph of this watch is intended to provide a reasonable approximation of
tidal movements only.
• CASIO COMPUTER CO., LTD. assumes no responsibility for any loss, or any
claims by third parties that may arise through the use of this watch.
About This Manual
General Guide
• Press C to change from mode to mode.
• In any mode (except when a setting screen is on the display), press L to illuminate
the display.
Timekeeping Mode
Timekeeping
Tide graph
Moon phase indicator
Day of week
Seconds
Hour : Minutes
Month – Day
PM indicator
Setting the Time and Date
This watch is preset with UTC offset values that represent each time zone around the
globe. Before setting the time, be sure to set the UTC offset for your Home Site first,
which is the location where you normally will be using the watch.
• Note that World Time Mode times are all displayed based on the time and date
settings you configure in the Timekeeping Mode.
To set the time and date
Home time zone
2. Press C to move the flashing in the sequence shown below to select other
settings.
Seconds
Day
Operation Guide 3194
Warning!
• 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.
Tide/Moon Data Stopwatch
Mode Mode (ST1)
Press .
Use the Timekeeping Mode to set and view the current
time and date.
• The tide graph shows tidal movements for the current
date in accordance with the current time as kept in the
Timekeeping Mode.
• The Moon phase indicator shows the current Moon
phase in accordance with the current date as kept in the
Timekeeping Mode.
Important!
• Be sure to configure the current time and date, and your
Home Site data (data for the site where you use the
watch) correctly before using the functions of this watch.
See "Home Site Data" for more information.
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
• Be sure to configure the correct UTC offset for your
Home Site before configuring any other Timekeeping
Mode settings.
• See the "City Code Table" for information about the
UTC offset settings that are supported.
DST UTC offset
Month Year Minutes
Stopwatch
Mode (ST2)
3. When the setting you want to change is flashing, use D and B to change it as
described below.
Screen To do this:
Reset the seconds to
Toggle between Daylight Saving
Time (
Specify the UTC offset
Change the hour or minutes
Change the year
Change the month or day
• See "Daylight Saving Time (DST)" for details about DST setting.
• The UTC offset setting range is –12.0 to +14.0, in 0.5-hour units.
• When DST is turned on, the UTC offset setting range is –11.0 to +15.0, in
0.5-hour units.
4. Press A twice to exit the setting screen.
• The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour from Standard
Time. Remember that not all countries or even local areas use Daylight Saving Time.
To toggle the Timekeeping Mode time between DST and Standard Time
DST indicator
Hour
To toggle between 12-hour and 24-hour timekeeping
In the Timekeeping Mode, press D to toggle between 12-hour timekeeping and 24-
hour timekeeping.
• With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for
times in the range of noon to 11:59 p.m. and no indicator appears to the left of the
hour digits 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 other modes.
• The P indicator is not displayed when the current time is displayed in other modes.
Countdown Timer Alarm Mode
Mode
Do this:
Press D.
Press D.
) and Standard Time ( )
Use D (+) and B (–).
Use D (+) and B (–).
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C to display the DST setting screen.
3. Press D to toggle between Daylight Saving Time
( displayed) and Standard Time (
4. Press A twice to exit the setting screen.
• The DST indicator appears on the Timekeeping, and
Tide/Moon Data screens to indicate that Daylight Saving
Time is turned on. In the case of the Tide/Moon Data
Mode, the DST indicator appears on the Tide Data
screen only.
World Time Mode
displayed).
1