CASIO

General Precautions

Do not expose the watch to extreme temperatures.

Although the watch is designed for normal use, avoid rough handling and do not drop it.

Do not fasten the strap too tightly. You should be able to fit a finger between your wrist and the strap.

Use a dry soft cloth, or a soft cloth dampened with a water solution of mild neutral detergent to clean the watch and strap. Never use volatile agents (e.g., gasoline, solvents, spray cleaners, etc.).

When not using your watch, store it in a dry place.

Avoid getting gasoline, cleaning solvents, spray aerosols, adhesives, paint, etc., on the watch. Chemical reactions caused by these materials will damage the gaskets, case, and polish of the watch.

Some watch models feature silk-screened designs on their straps. Be careful when cleaning such straps to avoid damaging these designs.

Battery

The battery installed in the watch at the factory discharges during delivery and storage. When the first signs of insufficient power appear (dim display), replace the battery at your nearest authorized CASIO service center or CASIO distributor.

Water Resistance

For all categories of watches, it is forbidden to:

• Press buttons underwater;
• Set hands underwater;
• Unscrew the crown underwater;

If the watch is exposed to saltwater, rinse it thoroughly and dry it.

Do not wear a watch with a leather strap while swimming. Avoid prolonged contact of a leather strap with water.

For watches with plastic straps...

You may find a white powdery substance on the strap. This substance is not harmful to your skin or clothing and can be easily removed by simply wiping with a piece of cloth.

Sweat or moisture on a plastic strap, or storage in high humidity conditions, can lead to damage, tearing, or cracking of the strap. To ensure a long service life for a plastic strap, wipe it clean of dirt and water with a soft cloth whenever possible.

For watches with fluorescent cases and straps...

Prolonged exposure to direct sunlight can cause the fluorescent coloring to gradually fade.

Prolonged contact with moisture can cause the fluorescent coloring to gradually fade. If any moisture gets on the watch surface, wipe it off as soon as possible.

Prolonged contact with any other wet surface can cause the fluorescent coloring to discolor. Check that moisture is removed from the fluorescent surface and avoid contact with other surfaces.

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

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

Notes:

1. The watch is not water resistant. Avoid any moisture.
2. II WR (Water Resistant) means the model is waterproof according to ISO 2281. Brief contact with water will not cause any problems.
3. With 5 bar water resistance (50 meters), the watch can withstand water pressure of the indicated value and can therefore be used during showers and brief swimming.
4. 10 bar water resistance (100 meters) means the watch can be used during normal swimming and snorkeling.
5. 20 bar water resistance (200 meters) 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 and remove the back cover.

The rubber gasket protecting 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.

General Mode Description

The diagram shows the overall appearance of the watch in Timekeeping Mode.

Pressing button [D] sequentially switches between modes in the following order: Timekeeping Mode - Moon Age Mode - Countdown Timer Mode - Stopwatch Mode - World Time Mode - Signal Mode - Phone Book Mode - Calibration Mode - Timekeeping Mode. Pressing button [C] switches to Digital Compass Mode, button [B] to Barometer/Thermometer Mode, and button [A] to Altimeter Mode.

Pressing button [L] turns on the backlight in any mode.

Diagram showing the watch in Timekeeping Mode with buttons labeled A, B, C, D, E, L.

Diagram showing Module 3135 and Module 3206.

Current Time Mode

In Timekeeping Mode, pressing button [E] cycles through display formats: day of the week - atmospheric pressure graph.

1. In Timekeeping Mode, press and hold button [E] until the city code display flashes, indicating the start of settings.
2. Press button [D] to cycle through settings: City Code - Summer Time (DST) - 12/24 Hour Format - Seconds - Hours - Minutes - Year - Month - Day - Power Saving Mode - Temperature Unit - Altitude Unit - Pressure Unit - City Code.
3. If you select seconds (seconds display flashes), press button [A] to reset the seconds counter to 00. If you press button [A] when the seconds counter is between 30 and 59, the seconds counter will reset to 00 and 1 will be added to the minutes counter. If the seconds counter is between 00 and 29, the minutes counter will not change.
4. To change minutes and other values, use button [A] to increase and button [C] to decrease the selected value.
5. The day of the week is set automatically according to the date.
6. The date can be set from January 1, 2000, to December 31, 2099.
7. Use buttons [A] and [C] to select the city code.
8. Press button [A] to turn the power saving mode ON/OFF.
9. Press button [A] to switch between 12-hour and 24-hour time formats. In the 12-hour format, the 'P' indicator denotes PM.
10. Press button [E] when settings are complete.

Compass Mode

The watch's built-in sensor detects magnetic north and determines one of the 16 cardinal directions.

1. Direction determination begins immediately upon entering Compass Mode (press button [C]).
2. After a few seconds, the display will show the direction indicated by the 12 o'clock position.
3. Press button [D] to return to Timekeeping Mode.

Performing Measurements

1. Hold the watch horizontally on a flat surface. The 12 o'clock position indicates the cardinal direction you want to determine.
2. Press button [C] to start measurements.
3. After a few seconds, the display will show the direction indicated by the 12 o'clock position.

The watch continues to measure every second for 20 seconds.

During measurements, the display shows: cardinal direction indicator, angle between your current location and magnetic north, and graphical representations of cardinal directions (North, South, East, West).

• 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

Compass Sensor Calibration

If you believe the compass readings are inaccurate, perform calibration. You can use three types of calibration: magnetic declination correction, bidirectional calibration, or north calibration.

Magnetic Declination Correction

When performing this calibration, you enter the magnetic declination angle (the difference between magnetic north and true north).

You can use this calibration if the magnetic declination angle is shown on your map. Note that you only need to enter whole numbers (e.g., if the angle is 7.4, enter 7).

1. In Compass Mode, press and hold button [E] until the magnetic declination angle unit flashes.
2. Use buttons [A] and [C] to enter the magnetic declination angle value and select the magnetic declination angle settings.
3. You can set the angle value in the range from W 90° to E 90°.
4. Changing the correction settings involves selecting the following values:
• 'OFF' (calibration disabled) - simultaneous press of buttons [A] and [C].
• 'E' (magnetic north points east, eastern calibration)
• 'W' (magnetic north points west, western calibration).
5. Press button [E] when settings are complete.

Bidirectional Calibration

Bidirectional calibration should be used if the watch has been exposed to magnetic radiation. By performing north calibration, you 'orient' the watch to magnetic north. If you decide to perform both types of calibration, perform bidirectional calibration first, then north calibration.

1. In Compass Mode, press and hold button [E] until the magnetic declination angle unit flashes.
2. Press button [D] to proceed to bidirectional calibration. The magnetic north direction indicator will flash at the 12 o'clock position, indicating the start of watch calibration.
3. Place the watch on a flat surface and press button [C] to calibrate the first direction. After the calibration process is complete, the display will show 'OK', then '- 2 -'. The magnetic north direction indicator will flash at the 6 o'clock position, indicating the watch is ready for the next direction calibration.
4. Rotate the watch 180 degrees.
5. Press button [C] to start calibration for the second direction. After calibration is complete, the display will show 'OK', and the watch will automatically return to Compass Mode.

For bidirectional calibration, you can only use two directions located 180 degrees apart.

Do not move the watch during calibration, otherwise the 'ERR' indicator may appear on the display. In this case, you must start the calibration process again.

The 'ERR' indicator that appears during calibration may also indicate the close proximity of any magnetic radiation source.

It is best to perform compass calibration in the location where you plan to use it.

North Calibration

1. In Compass Mode, press and hold button [E] until the magnetic declination angle unit flashes.
2. Press button [D] twice to proceed to north calibration. The display will show '- N -'.
3. Place the compass on a flat surface so that the 12 o'clock position corresponds to the north position.
4. Press button [C] to start calibration. After calibration is complete, the display will show 'OK', and after a short beep, the watch will automatically return to Compass Mode.
5. Do not move the watch during calibration, otherwise the 'ERR' indicator may appear on the display. In this case, you must start the calibration process again.
6. The 'ERR' indicator that appears during calibration may also indicate the close proximity of any magnetic radiation source.

Using the Compass to Determine Your Current Location on a Map

1. Turn your wrist so that your hand is horizontal relative to you.
2. In Timekeeping Mode, Compass Mode, Barometer/Thermometer Mode, or Altimeter Mode, press button [C] to determine your current location's direction.
3. Rotate the map (without rotating the watch!) so that the north direction on the map aligns with the north direction on the watch compass (marking on the watch's circular case). If the watch compass is set to display magnetic north, the magnetic north direction should align with the magnetic north direction on the map. If the watch compass is set with a deviation from magnetic north, it still means the north direction on the map should align with the north direction on the watch compass.
4. Determine your current location.

Finding Your Destination Using a Map and the Watch Compass

1. Orient the map so that the north direction on the map aligns with the north direction on the watch compass (marking on the watch's outer case). Determine your current location.
2. Rotate the map again so that your destination is directly in front of you.
3. Turn your wrist so that your hand is horizontal relative to you.
4. In Timekeeping Mode, Compass Mode, Barometer/Thermometer Mode, or Altimeter Mode, press button [C] to determine your current location's direction.
5. Holding the map in front of you, turn yourself so that the north indicated by the watch compass and the north direction on the map align. This way, the map will be oriented so that your destination, depicted on it, is ahead.

Determining the Angle to Your Destination on a Map

These measurements can only be performed with watches that have a rotating bezel.

1. Orient the map so that the north direction on the map aligns with the north direction on the watch compass (marking on the watch's outer case). Determine your current location.
2. Turn yourself so that the 12 o'clock position (and you) points towards the destination on the map, thereby rotating the map as well so that the north directions align.
3. In Timekeeping Mode, Compass Mode, Barometer/Thermometer Mode, or Altimeter Mode, press button [C] to determine your current location's direction. The direction indicator will appear on the display after 2 seconds. After that, when you press button [C] to take subsequent measurements, the current readings will disappear from the display for approximately 20 seconds.
4. Rotate the watch's rotating bezel so that the indicator on it aligns with the north direction shown by the compass.
5. To move towards your destination, proceed in the direction indicated by the 12 o'clock mark.

Barometer/Thermometer Mode

This watch is equipped with a sensor for measuring ambient atmospheric pressure and temperature. The accuracy of temperature readings can be affected by body heat, direct sunlight, or moisture.

Monitoring Ambient Atmospheric Pressure/Temperature

Press button [B] to enter Barometer/Thermometer Mode and start measuring atmospheric pressure and temperature, which takes 4-5 seconds. The measured pressure value is displayed in the center of the screen, and temperature in the lower part.

Atmospheric pressure readings are displayed in hPa (inHg). The pressure measurement range is from 260 hPa to 1100 hPa (7.65 inHg to 32.45 inHg). If the measured atmospheric pressure is outside the range, the display will show '------'. Readings will recover once the pressure normalizes.

Temperature readings are displayed in degrees Celsius (°C) or Fahrenheit (°F). The temperature measurement range is from 10.0°C to 60.0°C (14°F to 140.0°F). If the measured temperature is outside the range, the display will show '----.-'. Readings will recover once the temperature normalizes.

Atmospheric Pressure Measurement Graph

Measurements begin upon entering Barometer Mode and are taken every 2 hours, starting from the even hour. All measured values are displayed on the watch's graph.

1. The graph displays values for the last 20 hours.
2. The flashing graph cursor indicates the last measurement.
3. The graph increases or decreases when the pressure value changes by 1 hPa (0.05 inHg).
4. With sharp temperature changes, some parts of the graph may disappear; the display will recover when the temperature normalizes.

The following conditions may disrupt the graph display:

• Measurements outside the permissible range.
• Sensor malfunctions.

Pressure Difference Measurement Display

In Barometer Mode, each subsequent measured pressure value is compared to the previous one – the difference is displayed. The difference readings are presented in the range of +/- 5 hPa in hectopascals. The difference value is not displayed if the measured pressure is outside the permissible range.

Barometer/Thermometer Sensor Calibration

The pressure/temperature sensor is calibrated by the manufacturer and does not require preliminary calibration before use. If there is a significant error in readings, the sensor can be recalibrated.

1. In Barometer/Thermometer Mode, press and hold button [E] until 'OFF' or the temperature value appears.
2. Press button [D] to proceed to pressure sensor calibration.
3. Use button [A] to increase and button [C] to decrease the sensor values. To reset the value to its original state, press buttons [A] and [C] simultaneously.
4. Press button [E] when settings are complete.

Changing Temperature, Pressure, and Altitude Units

1. In Timekeeping Mode, press and hold button [E] until the city code display flashes, indicating the start of settings.
2. Then press button [D] to cycle through temperature, pressure, and altitude unit settings.
3. Use button [A] to select the unit of measurement (Temperature: Celsius - Fahrenheit (°C - °F), Altitude: Meters - Feet (m - ft), Pressure: Hectopascals - Inches of Mercury (hPa - inHg).
4. Press button [E] when settings are complete.

Altimeter Mode

The built-in altimeter uses atmospheric pressure data to calculate the altitude of your current location. You can also enter relative altitude data (e.g., the lowest point of a mountain before ascent, the first floor of a building), based on which the altimeter will calculate your altitude.

Be aware that all altimeter readings are not absolutely accurate. Temperature, temperature changes, proximity to electrostatic voltage sources and magnetic radiation, and being in an airplane affect measurement accuracy.

Viewing Your Current Altitude

1. Press button [A] in Timekeeping Mode to enter Altimeter Mode. The watch will automatically start measuring current altitude and display the readings. Altitude measurement usually takes 4-5 seconds.
2. If you want to track altitude changes and the altitude graph, leave the watch in Altimeter Mode for some time.
3. Press button [D] to stop altitude measurements and exit Altimeter Mode. Altitude data is displayed in increments of 5 meters (20 feet).

The measurable altitude range is from -700 to 10,000 meters (-2,300 to 32,800 feet).

You can select the altitude unit of measurement (meters or feet).

If you want to resume altitude measurements at any point, press button [A].

Using the data saving function in Altimeter Mode, you can save measurement values in the watch's memory.

Saving Data

1. In Altimeter Mode, press and hold button [A] until the 'REC' indicator appears, indicating data saving has begun. A beep will sound, and the current altitude, date (month-day), and time will be automatically saved in the watch's memory.
2. When the saving process is complete, the 'REC' indicator will stop flashing, and the watch will return to Altimeter Mode. The watch's memory can store up to 24 measurement records. When a new record is saved, the oldest one is automatically deleted.

Entering Relative Altitude

Using entered data (altitude of the first floor or the lowest point of a mountain climb), along with atmospheric pressure data, the watch more accurately calculates the altitude of your current location.

1. In Altimeter Mode, press and hold button [E] until 'OFF' or the set altitude value appears.
2. Use buttons [A] and [C] to enter the altitude value in increments of 5 meters (20 feet). Pressing buttons [A] and [C] simultaneously turns off the set altitude value (the display will show 'OFF').
3. Press button [E] when settings are complete.

Altitude Graph

You can view all measured altitude data on the altimeter graph: the horizontal axis represents the measurement time, and the vertical axis represents the altitude value in increments of 10 meters (40 feet).

Altimeter Logbook

In this mode, you can view all saved Altimeter Mode data, as well as the data for the maximum recorded ascent altitude.

While displaying measured data or the maximum altitude value, the lower part of the display alternates between the current time (hour/minute) and the current date (month/day).

Viewing Saved Records

1. Enter Logbook Mode. The maximum altitude record with the MAX indicator will appear first.
2. In Altimeter Logbook Mode, use buttons [A] and [C] to browse saved records.

Deleting Saved Records

1. In Logbook Mode, press and hold button [E]. The 'CLR' indicator will appear on the display.
2. Gradually release button [E] until the 'CLR' indicator starts flashing. All saved data will be deleted. A beep will sound upon completion of the deletion process.

Moon Age/Tide Mode

In this mode, you can view the moon phase and age for a specific date, as well as the tide graph for a specific time/date.

Upon entering Moon Age/Tide Mode, the display shows the tide graph as of 6 AM for the current day (for the city selected as your current location), as well as moon age and phase data as of 12 PM (for the city selected as your current location). You can then select any date to view the tide graph and moon phase/age.

Viewing Moon Age/Tide Data for a Specific Date and Tide Data for a Specific Date and Time

1. In Moon Age/Tide Mode, use buttons [A] and [C] to select the date for which you want to view data. The watch requires up to 10 seconds to display tide and moon data. If you need to change the date while information is being searched, use buttons [A] and [C] to select it.
2. After tide and moon data are displayed, press button [B] to change the time for viewing tide data.
3. You can use buttons [A] and [C] again to change the date.

Correcting High Tide Time

You can correct the high tide data for your current location based on data from the internet or other sources.

1. In Moon Age/Tide Mode, use buttons [A] and [C] to select the date for which you want to view tide data. The watch requires up to 10 seconds to display tide and moon data. If you need to change the date while information is being searched, use buttons [A] and [C] to select it.
2. After tide and moon data are displayed, press and hold button [E] until the hour digits start flashing, indicating the start of high tide time adjustments.
3. Use buttons [A] and [C] to set the hour value.
4. Then press button [D] to proceed to minute settings.
5. Use buttons [A] and [C] to set the minute value.
6. Press button [E] when high tide time settings are complete. Pressing buttons [A] and [C] simultaneously resets all tide time settings to their original default values set during manufacturing. Some days have two high tides. This watch can only be set for the time of one.

The left-right position of the moon on the watch display (west/east) depends on whether the moon is located north of you (northern position) or south of you (southern position).

You can use the following procedure to change the displayed moon phase to reflect the moon's actual position at your current location.

1. In Moon Age/Tide Mode, press and hold button [E] until the hour digits start flashing.
2. Press button [D] twice. The moon phase indicator will start flashing.
3. Press button [A] to cycle between northern ('N S') and southern ('N ►S') moon positions.
4. Press button [E] when settings are complete.

Countdown Timer Mode

The countdown timer can be set in the range of 1 to 60 minutes. You can set two countdown times: a start time (or main time) and a relative time, which is shorter than the start time and which you can view during the countdown.

The activated alarm sound helps you keep track of the countdown.

Alarm Sound

When the countdown reaches zero, a long alarm sound will occur. For the last 10 seconds of the countdown, a short alarm sound will occur every second.

You can also set an alarm sound for the timer's relative time. From the relative time until the end of the countdown, a short alarm sound will occur 4 times at the beginning of each minute and 10 seconds before the end.

Setting Timer Modes

1. In Timer Mode, when the start time is displayed, press and hold button [E]. The start time display will flash.
2. Press button [D] to cycle through settings: Start Time - Relative Time.
3. Use buttons [A] and [C] to enter the start or relative time values. You can set the main time from 1 to 60 minutes in one-minute increments. You can set the relative time from 1 to 5 minutes in one-minute increments.
4. Press button [E] when settings are complete.

Timer Alarm Sound On/Off

In Countdown Timer Mode, press button [B] to turn the alarm sound ON/OFF.

Using the Timer

1. Press button [A] in Timer Mode to start the countdown.
2. To stop the countdown, press button [A] again.
3. To resume the countdown, press button [A].
4. To view the start time (while the timer is stopped), press button [C].
5. To stop the countdown and view the relative time, press button [C].
6. To start the countdown from the relative time, press button [A].

World Time Mode

In this mode, you can view the local time in any of the 33 cities (29 time zones). World Time values are automatically set with the current time values.

Viewing Current Time in Another City

In World Time Mode, press buttons [A] and [C] to select the city whose value you want to view.

Summer Time Setting

1. Use buttons [A] and [C] to select the city for which you want to change the summer time.
2. Press button [E] to turn summer time ON (DST) / OFF.

Stopwatch Mode

The Stopwatch Mode allows you to measure elapsed time, split times, and dual finish times. The operating range of the total measured time is limited to 23 hours, 59 minutes, 59.99 seconds.

Measuring Elapsed Time

[Button A] (Start) - [Button A] (Stop) - [Button A] (Restart) - [Button A] (Stop) - [Button C] (Reset).

Measuring Split Time

[Button A] (Start) - [Button C] (Split time. 'SPL' indicator) - [Button C] (Restart) - [Button A] (Stop) - [Button C] (Reset).

Dual Finish

[Button A] (Start) - [Button C] (Split. First finish. First finish time displayed) - [Button A] (Stop. Second finish) - [Button C] (Cancel split. Second finish time displayed) - [Button A] (Reset).

Alarm Mode

You can set five different alarm sounds. When the set time is reached, the alarm will sound for 10 seconds. If the hourly chime is enabled, a short beep will sound at the beginning of each hour. You can stop the alarm by pressing any button.

Setting an Alarm

1. In Alarm Mode, press buttons [A] or [C] to select the alarm type: AL1, AL2, AL3, AL4, AL5, SIG (hourly chime indicator).
2. After selecting the alarm type, press and hold button [E] for 3 seconds. The hour digits will start flashing, indicating they are selected for setting. The alarm is automatically turned ON at this point.
3. Press button [D] to cycle through settings: Hours - Minutes.
4. Use buttons [A] and [C] to change the selected value.
5. Press button [E] when settings are complete.

Testing Alarm Sound

In Alarm Mode, press button [A] to test the alarm sound.

Alarm/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/OFF.

Power Source

This watch is equipped with a solar battery and a battery that is powered by energy received from the solar battery. If your watch is kept away from sunlight for a long time, the charge of the rechargeable battery will decrease.

Charging the Battery

After a full charge, normal watch operation continues for 5 months under the following conditions:

• Watch is not exposed to sunlight.
• Watch backlight used 1.5 sec./day.
• Alarm sound used 10 sec./day.
• 10 hours of altitude measurement (using altimeter) per month.
• 2 hours of atmospheric pressure measurement per day.
• 10 compass measurements per week.
• 18 hours of operation, 6 hours (per day) in sleep mode.

By exposing the watch to sunlight every day, you ensure continuous battery recharging.

The following table shows the time required for the battery to charge:

Be careful not to expose your watch to direct sunlight for extended periods, as this may cause malfunctions.

Power Saving Mode

Sleep mode helps conserve the watch's battery charge when it is kept in the dark. The following table shows the availability of watch functions when in sleep mode:

Turning Power Saving Mode ON/OFF

1. In Timekeeping Mode, press and hold button [E] until the city code display flashes, indicating the start of settings.
2. Press button [D] 9 times to proceed to Power Saving Mode.
3. Press button [A] to turn the power saving mode ON ('ON') or OFF ('OFF').
4. Press button [E] when settings are complete. The display will show 'PS' when the mode is turned ON.

Your watch may also automatically enter sleep mode. To return the watch to normal operation, place it in a well-lit area or press any button.

Battery Level Indicator

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

If there is no indicator on the display, the battery is completely discharged. Place your watch in a well-lit area.

Technical Specifications

• Accuracy: ±15 seconds per month at normal temperature.
• Timekeeping Mode: Hour, minute, second, AM/PM indicator ('P'), year, month, day, day of the week.
• Calendar System: Auto-calendar from 2000 to 2099.
• 12/24 Hour Format.
• World Time Mode: Current time in 33 cities (29 time zones).
• Compass Mode: Determines your current location's direction, determines destination using map and compass, determines angle to destination, three types of compass calibration.
• Barometer/Thermometer Mode: Atmospheric pressure measurement graph, sensor calibration.
• Altimeter Mode: Determines your current location's altitude, altitude measurement graph, relative altitude input.
• Altimeter Logbook: Stores up to 24 measured altitude records.
• Alarm Mode: 5 daily alarms, hourly chime indicator.
• Stopwatch Mode: Maximum measurement range 23 hours 59 minutes 59.99 seconds. Measurement types: elapsed time, split time, dual finish.
• Timer Mode: Start time and relative time input, alarm sound ON/OFF.
• Other: Backlight (electroluminescent panel), auto-backlight, button tone ON/OFF, battery charge indicator, power saving mode.

Information about the Watch

• Name: Electronic/electro-mechanical quartz wristwatches (men's/women's).
• Brand: CASIO
• Manufacturer: CASIO COMPUTER Co., Ltd. (CASIO Computer Co., Ltd.)
• Manufacturer Address: 1-6-2, Hon-machi 1-chome, Shibuya-ku, Tokyo 151-8543, Japan
• Importer: CASIO LLC, 127015, Russia, Moscow, Butyrskaya St., Bldg. 77
• Warranty Period: 1 year
• Address of Authorized Organization for Claims: Stated in the warranty certificate.