Operation Guide 4779 4780
•This watch displays lunitidal intervals in terms of hours and minutes.
•The “Site/Lunitidal Interval Data List” provides UTC differential and longitude information around the world.
•The following is the initial factory default Home Site data (Tokyo, Japan) when you first purchase the watch and whenever you have the batteries replaced. Change these settings to match the area where you normally use the watch.
UTC differential (+9.0); Longitude (East 140 degrees); Lunitidal interval (5 hours, 20 minutes)
To configure Home Site data
1.In the Timekeeping Mode, hold down Auntil the seconds start to flash, which indicates the setting
screen.
2. Press C twice to display the UTC differential setting screen, and confirm that the setting is correct.
• If the UTC differential setting is not correct, use D (+) and
3. Press Ato display the longitude value setting screen.
Longitude
Longitude | (East/West) | 4. Press Cto move the flashing in the sequence shown |
value |
| below to select other settings. |
To specify a date
Month – Day
Year
1.In the Tide/Moon Data Mode, hold down A until the year setting starts to flash, which indicates the setting screen.
2.Press Cto move the flashing in the sequence shown below to select the other settings.
Year 
Month 
Day
3.While a setting is flashing, use D(+) or B
•You can specify a date in the range of January 1, 2000 to December 31, 2099.
4.Press Ato exit the setting screen.
5.Use A to display either the Tide Data screen or the Moon Data screen.
Longitude |
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| Longitude |
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| Lunitidal Interval |
| Lunitidal Interval |
Value |
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| (East/West) |
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| Hours |
| Minutes |
5.While the setting you want to change is flashing, use Dand B to change it as described below.
Setting | Screen | Button Operations |
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Longitude Value |
| Use D(+) and B |
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| • You can specify a value from 0° to 180°, in 1- |
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| degree units. |
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Longitude |
| Use D to switch between east longitude ( ) |
(East/West) |
| and west longitude ( ). |
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Lunitidal Interval |
| Use D(+) and B |
Hours, Minutes |
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|
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6. Press A to exit the setting screen.
Setting the Analog Time
Perform the procedure below when the time indicated by the analog hands does not match the time of the digital display.
To adjust the analog time
1.In the Timekeeping Mode, press Cseven times to enter the Hand Setting Mode.
2. Hold down Auntil the current digital time starts to flash, which indicates the setting screen.
3. Use Dto adjust the analog setting.
• Press Donce to advance the hands 20 seconds.
•Hold down D to advance the hands at high speed.
•To lock high speed hands movement, hold down Dto start it and then press B to lock. The hands will continue to advance for one
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 A to exit the setting screen.
•The minute hand will be adjusted slightly to match the seconds when you exit the setting screen.
•To return to the Timekeeping Mode, press C.
Tide/Moon Data
Thermometer
This watch uses a temperature sensor to measure temperature. A reading is taken during each
The watch also takes separate readings and stores them in memory for display in the temperature tendency graph, which can be viewed in the Timekeeping Mode. Measured temperature values are stored in memory for later recall when you need them.
Thermometer Screen | Temperature |
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Tendency Screen | Temperature | ||
Thermometer | |||
| |||
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| tendency | |
Press A. |
| graph | |
▲ | ▲ |
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•You can select either Celsius (°C) or Fahrenheit (°F) units for the thermometer screen. See “To specify the temperature display unit” for more information.
•The thermometer screen displays temperature values in 0.1°C units (or 0.2°F units).
•The display range of the thermometer screen is
•You can calibrate the temperature sensor if you feel that the displayed temperature values are not correct. See “Temperature Sensor Calibration” for more information.
Important!
•Temperature measurements are affected by your body temperature (while you are wearing the watch), direct sunlight, and moisture. To achieve a more accurate temperature measurement, remove the watch from your wrist, place it in a well ventilated location out of direct sunlight, and wipe all moisture from the case. It takes approximately 20 to 30 minutes for the case of the watch to reach the actual surrounding temperature.
Temperature Tendency Graph
The watch also takes temperature readings at the top and the bottom of each hour and stores the results in memory for display on the temperature tendency graph. Depending on the current Timekeeping Mode time, the temperature tendency graph shows either the top of the hour measurements or the bottom of the hour measurements for the past 17 hours.
From the top of each hour to the 29th minute, past top of the hour readings are shown in the graph. From the bottom of each hour to the 59th minute, past bottom of the hour readings are shown in the graph.
Temperature tendency graph contents are updated every 30 minutes.
+6.0 to +9.9°C (+10.8 to +17.8°F) +2.0 to +5.9°C (+3.6 to +10.6°F)
▲ |
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| |
Past 17 hours of | |
Tide graph
Moon phase indicator Time
Month – Day
Tide/Moon data lets you view the Moon age and the Moon phase for a particular date, and tidal movements for a particular date and time for your Home Site.
•When you enter the Tide/Moon Data Mode, the data for 6:00 a.m. on the current date appears first.
•If you suspect that the Tide/Moon data is not correct for some reason, check the Timekeeping Mode data (current time, date, and Home Site settings), and make changes as required.
•See “Moon Phase Indicator” for information about the Moon phase indicator and “Tide Graph” for information about the tide graph.
•All of the operations in this section are performed in the Tide/Moon Data Mode, which you enter by pressing C.
measurement values | Latest measurement value |
|
The horizontal axis of the graph represents time. The rightmost column is the newest temperature value in memory, while the leftmost column is the temperature value stored approximately 17 hours ago (1 dot = 1 hour). The vertical axis of the graph represents the relative change from one hour to the next.
•When the relative change from one hour to the next exceeds +10.0°C (+18.0°F), the dot at the highest point for the applicable hour flashes.
•When the relative change from one hour to the next exceeds
•If a measurement error occurs for some reason, only a single the dot in the center column will be displayed.
Temperature change greater | Temperature change greater | Error |
than +10.0°C (+18.0°F) | than |
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Tide/Moon Data Screens
In the Tide/Moon Data Mode, press A to toggle between the Tide Data screen and the Moon Data screen.
Tide Data Screen | Moon Data Screen |
Tide graph | Moon phase indicator |
| |
Press A. | ▲ |
▲ | |
Month – Day |
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Time | Moon age |
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•While the Tide Data screen is displayed, press Dto advance to the next hour.
•While the Moon Data screen is displayed, press Dto advance to the next day.
•You can also specify a particular date (year, month, day) to view its Tide data and Moon data. See “To specify a date” for more information.
•When you enter the Tide/Moon Data Mode, the screen (Tide data or Moon data) that was displayed the last time you exited the mode appears first.
Recalling Temperature Data
The measurements the watch takes at the top and the bottom of each hour are stored in memory automatically. Memory can hold up to 50 measurement records. You can use the Temperature Data Recall Mode to recall memory data when you need it.
•Temperature data records are assigned numbers automatically starting from 01.
•When there are already 50 records in memory, storage of a new temperature reading causes the oldest record (record number 50) to be deleted automatically to make room for the new data. The new data is assigned record number 1, and all of the numbers of all the other records (01 to 49) are incremented by 1 (becoming 02 through 50).
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