CASIO

Battery

The battery installed at the factory is discharged during delivery and storage. When the first signs of insufficient power appear (dim display), the battery must be replaced at a CASIO authorized service center or dealer.

Water Resistance

For all categories of watches, do not:

• press buttons underwater;
• change hands underwater;
• unscrew the crown underwater.

If the watch has been exposed to saltwater, rinse it thoroughly and dry it. Do not wear a watch with a leather band while swimming. Avoid prolonged contact of a leather band with water.

For watches with plastic bands: You may notice a white powdery substance on the band. This substance is harmless to your skin or clothing and can be easily removed by wiping with a cloth. Sweat or moisture on a plastic band, or storage in high humidity conditions, can cause damage, breakage, or cracking. To ensure a long service life for the plastic band, wipe it clean of dirt and moisture with a soft cloth whenever possible.

For watches with fluorescent cases and bands: Prolonged exposure to direct sunlight can cause gradual fading of the fluorescent color. Prolonged contact with moisture can also cause gradual fading. If any moisture gets on the watch surface, wipe it off as soon as possible. Prolonged contact with any other wet surface can cause discoloration of the fluorescent color. Ensure the fluorescent surface is dry and avoid contact with other surfaces.

Note: Strong friction of a surface with fluorescent paint against another surface may cause the paint to transfer.

Condensation may form on the inside of the glass due to rapid temperature changes. This is a normal physical phenomenon and not a defect.

CASIO COMPUTER CO., LTD. is not responsible for any damage that may occur during the use of these watches and does not accept any claims from third parties.

Water Resistance Classification

Watches are classified by levels (from I to V) according to their degree of water resistance. Check your watch's classification in the table below to determine its proper use.

Notes:

1. Watches are not water-resistant. Avoid any contact with water.
2. II WR (Water Resistant) means the model is waterproof according to ISO 2281. Brief contact with water will not cause problems.
3. With 5 Bar (50 meter) water resistance, the watch can withstand water pressure of the specified value and can be used during showering and brief swimming.
4. 10 Bar (100 meter) water resistance means the watch can be used for normal swimming and skin diving.
5. 20 Bar (200 meter) water resistance means the watch can be used for scuba diving (except for depths requiring a helium-oxygen mixture).

Watch Care

Never attempt to open the case or remove the back cover yourself. The rubber gasket that protects the watch from water and dust should be replaced every 2-3 years. If moisture gets inside the watch, have it checked immediately by your nearest dealer or CASIO distributor.

Setting Home City

1. In Timekeeping Mode, press and hold button "E". The display shows "Hold SET", then the flashing "HT" indicator, and the second hand moves to your current home city.
2. Use button "A" to select your current home city (moves the second hand clockwise).
3. Press button "D" to proceed to Daylight Saving Time (DST) settings.
4. Press button "A" to cycle through DST settings: AUTO (auto-switch), OFF (DST off), ON (DST on).
5. After completing settings, press button "E" to return to Timekeeping Mode.

Setting Current Time and Date

1. In Timekeeping Mode, press and hold button "E". The display shows "Hold SET", then the flashing "HT" indicator, and the second hand moves to your current home city.
2. Use button "A" to select your current home city (moves the second hand clockwise).
3. Press button "D" to cycle through the settings: City Code -> DST -> 12/24 Hour Format -> Seconds -> Hours -> Minutes -> Year -> Month -> Day -> Button Sound ON/OFF -> Light Duration Setting -> Auto Light ON/OFF -> Altitude/Pressure Units -> City Code.
4. If seconds are selected (flashing seconds display), press button "A" to reset seconds to 00. If button "A" is pressed when seconds are between 30 and 59, seconds reset to 00 and 1 is added to minutes. If seconds are between 00 and 29, minutes do not change.
5. To change minutes, hours, etc., use button "A" to increase and button "C" to decrease the value. The day of the week is set automatically according to the date. The date can be set from January 1, 2001, to December 31, 2099.
6. Use buttons "A" and "C" to select the City Code.
7. Press button "A" to switch between 12-hour and 24-hour formats. In the 12-hour format, "P" indicates PM.
8. Press button "A" to cycle through DST settings: AUTO (auto-switch), OFF (DST off), ON (DST on).
9. After completing settings, press button "E" twice.

Taking Measurements

1. Place the watch on a horizontal surface or hold it horizontally. The 12 o'clock position indicates the direction you want to determine.
2. Press button "C" to start measurement. The "COMP" indicator appears on the display during measurement.
3. After a few seconds, the display shows the direction indicated by the 12 o'clock position. Approximately 2 seconds after measurement starts, the second hand moves to the magnetic north position. The display will show either the angle between magnetic north and the 12 o'clock position or one of the 16 cardinal directions.
4. After the compass starts, measurements are taken every second for 20 seconds, then stop automatically. The direction indicator shows "---", and the second hand moves to "COMP", indicating measurement completion. Press button "C" to continue measurements.
5. Pressing button "E" switches the display between the angle value and the cardinal direction indicator.
6. After successful calibration, the display shows "OK", and the watch automatically enters Compass Mode (indicator "---").
7. Auto-backlight is unavailable during the 20-second direction measurement. Compass measurements are suspended when any alarm or backlight is activated.
8. Some models have a small scale in the center of the dial to indicate direction. You can use this scale to determine how many degrees the 12 o'clock position lags (clockwise) behind the north indication of the second hand.
9. Press button "D" to return to Timekeeping Mode.

16 Cardinal Directions:

• N: North
• NNE: North-Northeast
• NE: Northeast
• ENE: East-Northeast
• E: East
• ESE: East-Southeast
• SE: Southeast
• SSE: South-Southeast
• S: South
• SSW: South-Southwest
• SW: Southwest
• WSW: West-Southwest
• W: West
• WNW: West-Northwest
• NW: Northwest
• NNW: North-Northwest

Magnetic Sensor Calibration

If compass readings seem inaccurate, perform calibration. Three types are available: Magnetic Declination, Bidirectional, or North Calibration.

Using the Compass to Determine Your Location on a Map

1. Hold your wrist horizontally.
2. In Timekeeping, Compass, Barometer/Thermometer, or Altimeter Mode, press button "C" to determine your current direction.
3. Rotate the map (without rotating the watch!) so that North on the map aligns with North on the watch compass. If the watch compass is set to magnetic north, align it with magnetic north on the map. If it's set to true north, align it with true north on the map.
4. Identify your current location.

Finding Your Target Direction with the Map and Watch Compass

1. Orient the map so that North on the map aligns with North on the watch compass. Identify your current location.
2. Rotate the map again so that your target destination is directly in front of you.
3. Hold your wrist horizontally.
4. In Timekeeping, Compass, Barometer/Thermometer, or Altimeter Mode, press button "C" to determine your current direction.
5. Holding the map in front of you, turn your body so that the North indicated by the watch compass aligns with the North on the map. The map will now be oriented so that your target destination is ahead.

Monitoring Atmospheric Pressure/Ambient Temperature

1. Press button "B" to enter Barometer/Thermometer Mode from Timekeeping, Compass, or Altimeter Mode. The "BARO" indicator appears, signifying temperature and pressure measurements are being taken. Readings appear after 5 seconds. After pressing "B", measurements are taken every 5 seconds for the first 5 minutes, then every 2 minutes.
2. Use button "E" to switch the display between temperature and pressure values.
3. Press button "D" to return to Timekeeping Mode.

Atmospheric pressure readings are displayed in hPa (hectopascals) or inHg (inches of mercury). The measurement range is 260 to 1,100 hPa (7.65 to 32.45 inHg). If the measured pressure is outside this range, "------" is displayed. Readings normalize when pressure returns to the measurable range.

Temperature readings are displayed in degrees Celsius (°C) or Fahrenheit (°F). The measurement range is 10.0°C to 60.0°C (14°F to 140.0°F). If the measured temperature is outside this range, "-" is displayed. Readings normalize when temperature returns to the measurable range.

Atmospheric Pressure Graph

Measurements begin upon entering Barometer Mode and are taken every 2 hours, starting from the 30th minute of the even hour. All measured values are displayed on the watch's graph. The graph shows values for the last 16 hours. A flashing graph cursor indicates the latest measurement. The horizontal axis represents time (each point is 2 hours). The vertical axis represents atmospheric pressure. An upward graph trend indicates improving weather, while a downward trend indicates worsening weather. If temperature changes rapidly, parts of the graph may disappear; the display will recover when the temperature normalizes. Graph display may be disrupted if measurements exceed the allowable range or if there is a sensor malfunction.

Pressure Difference Display

In Barometer Mode, each subsequent measured pressure value is compared to the previous one, and the difference is shown by the second hand. Pressure difference readings range from +/- 5 hPa. If the measured pressure is outside the allowable range, the second hand moves to "OVER" or "UNDER".

Atmospheric Pressure/Temperature Sensor Calibration

The pressure/temperature sensor is factory calibrated and does not require recalibration before use. If significant inaccuracies occur, the sensor can be recalibrated.

1. In Barometer/Thermometer Mode, press and hold button "E" until "Hold SET" appears, followed by the current temperature value.
2. Press button "D" to select temperature or pressure calibration.
3. Use button "A" to increase and button "C" to decrease the sensor value. To reset to the original value, press buttons "A" and "C" simultaneously (the "OFF" indicator appears).
4. After settings are complete, press button "E".

Changing Temperature, Pressure, and Altitude Units

In Timekeeping Mode, press and hold button "E" until the "Hold SET" indicator flashes, then the "HT" indicator flashes, and the second hand moves to the home city code. Use button "D" to select unit settings (the "UNIT" indicator appears). Press button "A" to cycle through altitude units: meters (m) or feet (ft). Press button "B" to cycle through atmospheric pressure units: hectopascals (hPa) or inches of mercury (inHg). Press button "C" to switch temperature units between Celsius (°C) and Fahrenheit (°F). After settings are complete, press button "E" twice.

Viewing Your Current Altitude

1. Press button "A" in Timekeeping, Compass, or Thermometer/Barometer Mode to begin altitude measurements. The "ALTI" indicator appears. Altitude measurement typically takes 4-5 seconds. Altitude data is displayed in 5-meter (20-foot) increments. After pressing "A", measurements are taken every 5 seconds for the first 3 minutes, then every 2 minutes.
2. To track altitude changes on a graph, leave the watch in Altimeter Mode for a period.
3. Press button "D" to stop altitude measurements and return to Timekeeping Mode.

The measurable altitude range is 700 to 10,000 meters (-2,300 to 32,800 feet). If data is outside this range, "-" is displayed. The watch automatically returns to Timekeeping Mode if no buttons are pressed for 10 hours while in Altimeter Mode.

Altitude Graph

The graph displays altitude values recorded over time. The horizontal axis represents time (each point is 5 seconds for the first 3 minutes, then 2 minutes). The vertical axis represents altitude (each point is 10 meters or 40 feet). If a measured altitude value is outside the allowable range, it is not displayed on the graph.

Selecting Altitude Measurement Type

1. In Altimeter Mode, press and hold button "E" until "Hold SET" appears, then release button "E".
2. Press button "D" to access altitude measurement type settings. The display will show "0'05" or "2'00".
3. Use button "A" to select "0'05" (short) or "2'00" (long). "0'05" measures every 5 seconds for one hour. "2'00" measures every 5 seconds for the first 3 minutes, then every 2 minutes for the next 24 hours.
4. After settings are complete, press button "E".

Altitude Difference Measurement

In Altimeter Mode, the dial from 11 o'clock to 7 o'clock serves as a scale showing altitude difference. During measurement, the second hand indicates the difference between the relative altitude and the current altitude. The measurement range for the difference is -3,000 to 3,000 meters (-9,980 to 9,980 feet). If the measured value is outside this range, the difference is not displayed.

Selecting Altitude Difference Scale

You can select a scale of 100 or 1000 meters.

1. In Altimeter Mode, press and hold button "E" until "Hold SET" appears, then release button "E".
2. Press button "D". The display will show "100" or "1000".
3. Use button "A" to select the "100" or "1000" scale.
4. After settings are complete, press button "E".

Setting Altitude Difference Start Value

In Altimeter Mode, press button "E". The watch measures the current altitude and sets it as the starting altitude difference value. The altitude difference value is considered zero.

Using Altitude Difference Value

After setting the starting altitude difference, you can calculate the difference between your current location and a subsequent ascent/descent point.

1. After entering Altimeter Mode, ensure the altitude difference is displayed. If not, press button "A" to measure current altitude.
2. Use contour lines on the map to determine the altitude difference between your current position and the target ascent/descent point.
3. In Altimeter Mode, press button "E" to set the current altitude as the starting value.
4. Compare the altitude difference shown on the map with the value on the watch. Move towards your target destination. For example, if the map shows a difference of +80 meters to your destination, you are approaching it when the display shows +80.

Total Ascent/Descent

During ascent measurement, total ascent (ASC) and descent (DSC) values are calculated. Each time altitude measurement begins, the ASC and DSC values are added to the current total. If an ascent or descent is less than 15 meters, it is not added. All values are automatically saved in the watch's memory.

Viewing Saved Altimeter Data

1. Press button "D" to enter Altimeter Memory Record Mode. The "REC" indicator appears.
2. Use buttons "A" and "C" to view saved data. The record types are: Record 1 to Record 14 - Maximum Altitude (HI) - Minimum Altitude (LO) - Total Ascent (ASC) - Total Descent (DSC).
3. When manually saved data is displayed, the current time and date alternate at the bottom of the display. When maximum or minimum values are displayed, the time they were recorded alternates. When total ascent or descent is displayed, the time and date of the first recording of these values alternate.
4. Press button "D" to exit Altimeter Memory Record Mode.

An "---" indicator instead of data means the data was deleted or an error occurred during measurement.

Deleting Saved Data

1. In Altimeter Memory Record Mode, select the records you want to delete using buttons "A" and "C".
2. Press and hold button "E" until "Hold CLR" and then "CLR" appear.

Deleting All Record Data

In Memory Record Mode, press and hold button "E" for 5 seconds until "Hold CLR" -> "CLR" -> "Hold ALL" -> "CLR ALL" appears.

Measuring Split Times

A (Start) -> A (Stop) -> A (Restart) -> A (Stop) -> C (Reset).

Measuring Lap Times

A (Start) -> C (Lap Time. "SPL" indicator appears) -> C (Restart) -> A (Stop) -> C (Reset).

Dual Finish

A (Start) -> C (Split. First finisher's time displayed) -> A (Stop. Second finisher's time) -> C (Cancel split. Second finisher's time displayed) -> C (Reset).

Setting Timer Modes

1. Enter Timer Mode.
2. Press and hold button "E" until "Hold SET" appears, followed by the current countdown time.
3. Use button "A" to increase and button "C" to decrease the minute value.
4. After settings are complete, press button "E".

Using the Timer

1. Press button "A" in Timer Mode to start the countdown.
2. Press button "A" again to stop the countdown.
3. You can resume the countdown by pressing button "A".
4. After stopping the countdown, press button "C" to reset the time to the starting value.

Setting the Alarm

1. In Alarm Mode, press buttons "A" or "C" to select the alarm type: 1, 2, 3, 4, 5, or SIG (hourly chime).
2. After selecting the alarm type, press and hold button "E" for 3 seconds until "Hold SET" appears, followed by the set alarm time.
3. Press button "D" to cycle through the settings: Hours -> Minutes.
4. Use buttons "A" and "C" to adjust the selected value.
5. After settings are complete, press button "E".

Checking Alarm Sound

In Alarm Mode, press button "A" to check the alarm sound.

Turning Alarm Sound and Hourly Chime ON/OFF

1. In Alarm Mode, press buttons "A" or "C" to select the alarm type.
2. Press button "B" to turn it ON or OFF.

Viewing Current Time in Another City

In World Time Mode, press button "A" to move the second hand to the desired city code to view its time.

Switching Daylight Saving Time (DST)

1. Use button "A" to select the city whose DST you want to change.
2. Press and hold button "E" until "Hold" appears. Do not release the button until the indicator disappears.
3. You can then switch between DST ON and standard time.

Swapping Current Time City with Another City's Time

1. In World Time Mode, press button "A" to select the city code of another time zone.
2. Press and hold button "C". The "Hold" indicator will appear and then disappear. The selected city becomes your current home city (current time values change accordingly), and your original home city becomes the other time zone city.

World Time City Codes and Differences from GMT

Note on Russian Time Zones: As of June 2011, Russia abolished the transition to daylight saving time. Federal Law "On Amendments to the Federal Law 'On Time Calculation'" adopted on July 21, 2014, stipulated that as of October 26, 2014, Russia would have 11 time zones, with most shifted back by one hour. Please consider this information when setting your watch.

Battery Power Indicator

The battery charge indicator is located at the bottom of the display.

Note: Do not place your watch in direct sunlight for extended periods, as this may cause malfunctions.

Backlight

Press button "L" in any mode to turn on the watch backlight. The backlight automatically turns off when any alarm sounds. The backlight uses LED panels, whose power decreases after a certain period of use. The watch emits an audible beep when illuminated, which is normal and not an indication of malfunction. The backlight is difficult to see in direct sunlight. Frequent use of the backlight shortens battery life.

Changing Backlight Duration

1. In Timekeeping Mode, press and hold button "E" until "Hold SET" appears, and the "HT" indicator flashes. The second hand moves to the home city code.
2. Use button "D" to select backlight duration settings (indicators "LT1" or "LT3").
3. Press button "A" to switch the backlight duration.
4. After settings are complete, press button "E".

Auto-Backlight

Auto-backlight activates automatically whenever your hand is positioned at an angle of 40° relative to the ground. Do not use the auto-backlight function when light could cause injury or distraction, such as while operating a motorcycle or bicycle. When auto-backlight is ON, the "A.EL" indicator is displayed.

1. In Timekeeping Mode, press and hold button "E" until "Hold SET" appears, and the "HT" indicator flashes. The second hand moves to the home city code.
2. Use button "D" to select auto-backlight settings ("AT OFF" or "AT On").
3. Press button "A" to turn auto-backlight ON ("On") or OFF ("OFF").
4. After settings are complete, press button "E".

Turning Button Sound ON/OFF

1. In Timekeeping Mode, press and hold button "E" until "Hold SET" appears, and the "HT" indicator flashes. The second hand moves to the home city code.
2. Use button "D" to select button sound settings (indicators "MUTE" or "BEEP").
3. Press button "A" to turn button sound ON ("BEEP") or OFF ("MUTE").
4. After settings are complete, press button "E".