Operation Guide 4779 4780
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.
Warning!
•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.
General Guide
•Press Cto change from mode to mode.
•In any mode (except when a setting screen is on the display), press B to illuminate
the display.
About This Manual
Module 4779
Module 4780
Temperature Data
Recall Mode
•Depending on the model of your watch, display text appears either as dark figures on a light background (Module 4779), or light figures on a dark background (Module 4780). 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.
•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.
Stopwatch Mode
Timekeeping Mode | Press C. | ▲ |
| Hand Setting Mode |
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World Time Mode | Alarm Mode | Countdown Timer | |
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Timekeeping
Use the Timekeeping Mode to set and view the current time and date. This watch features separate digital and analog timekeeping. The procedures for setting the digital time and analog time are different.
•In the Timekeeping Mode, press A to toggle between the thermometer screen and the temperature tendency screen.
Thermometer Screen |
| Temperature Tendency | |
| Screen | Temperature | |
| Thermometer | ||
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| tendency | |
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Tide | Press A. |
| graph |
graph | ▲ | ▲ |
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Moon |
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Day of week – |
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phase |
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indicator | Day |
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PM indicator Hour : Minutes | Seconds |
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•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.
•See “Thermometer” for details about the thermometer screen and temperature tendency graph.
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.
Setting the Digital Time and Date
This watch is preset with UTC differential values that represent each time zone around the globe. Before setting the digital time, be sure to first set the UTC differential for your Home Site, 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 digital time and date
1.In the Timekeeping Mode, hold down Auntil the seconds start to flash, which indicates the setting screen.
•Be sure to configure the correct UTC differential for your Home Site before configuring any other Timekeeping Mode settings.
•See the “UTC Differential/City Code List” for information about the UTC differential settings that are
supported.
Seconds 2. Press Cto move the flashing in the sequence shown below to select other settings.
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| Temperature |
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3.When the setting you want to change is flashing, use D and Bto change it as described below.
Screen: | To do this: | Do this: |
| Reset the seconds to 00 | Press D. |
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| Toggle between Daylight Saving | Press D. |
| Time (ON) and Standard Time (OF) |
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| Specify the UTC differential | Use D (+) and |
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| Change the hour or minutes | Use D (+) and |
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| Toggle between | Press D. |
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| Change the year, month or day | Use D (+) and |
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•See “Daylight Saving Time (DST) Setting” below for details about the DST setting.
•The UTC differential setting range is
•For information about settings other than the time and date, see the following. Temperature Sensor Calibration: “Temperature Sensor Calibration” Temperature Unit: “To specify the temperature display unit”
4.Press Atwice to exit the setting screen.
•The
•The day of the week is displayed automatically in accordance with the date (year, month, and day) settings.
•When DST is turned on, the UTC differential setting range is
•Any time the seconds setting is changed, the analog hands are adjusted accordingly.
Daylight Saving Time (DST) Setting
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 digital time between DST and Standard Time
1.In the Timekeeping Mode, hold down Auntil the
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| seconds start to flash, which indicates the setting |
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| 2. Press Conce and the DST setting screen appears. | |
| 3. Press Dto toggle between Daylight Saving Time (ON | |
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| displayed) and Standard Time (OF displayed). |
| 4. Press Atwice to exit the setting screen. | |
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| • | The DST indicator appears on the Timekeeping, Tide/ |
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| Moon Data, Alarm, and Hand Setting Mode screens to |
| On/Off status indicate that Daylight Saving Time is turned on. In the | |
DST indicator | case of the Tide/Moon Data Mode, the DST indicator | |
appears on the Tide Data screen only. | ||
Home Site Data
Moon phase, tide graph data, and Tide/Moon Data Mode data will not be displayed properly unless Home Site data (UTC differential, longitude and lunitidal interval) is configured correctly.
•The UTC differential indicates the time differential with Greenwich, England.
•The letters UTC is the abbreviation for Coordinated Universal Time, which is the
•The lunitidal interval is the time elapsing between the Moon’s transit over a meridian and the next high tide at that meridian. See “Lunitidal Interval” for more information.
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