CASIO MTG-500 Watch User Manual

Battery

The battery installed at the factory may discharge during storage in the warehouse and store. If you notice the first signs of battery discharge (the indicator dims), replace the battery at your CASIO dealer or distributor.

Water Resistance

Depending on the water resistance class, watches are marked from "I" to "V". To determine the correct operating conditions, check your watch's class using the table below.

Notes:

• I: These watches are not waterproof; avoid moisture.
• III: Do not press buttons underwater.
• IV: You can press buttons underwater, but do not press recessed buttons. If seawater gets on the watch, rinse it thoroughly with fresh water and dry it.
• V: Can be used for diving (except for depths requiring a helium-oxygen gas mixture).

Some water-resistant watches come with a leather strap. Do not wear such models while swimming or in any other situation involving submersion of the strap in water.

Precautions for Operating Your Watch

• Do not attempt to open the case or remove the back cover.
• The gasket for water and dust protection should be replaced every 2-3 years.
• If water or condensation gets into the watch, immediately take it for repair to your CASIO dealer or distributor.
• Do not expose the watch to excessively high temperatures.
• Although the watch is equipped with a shock-resistant mechanism, avoid strong impacts or dropping it on hard surfaces.
• Do not overtighten the strap. A finger should be able to fit under the strap.

Care Instructions

To clean the watch and strap, use a soft cloth, dry or dampened with a soapy solution. Do not use volatile chemical solvents (such as gasoline, solvents, cleaning aerosols, etc.). Always store the watch in a dry place when not in use. Do not expose the watch to aggressive reactive agents such as gasoline, cleaning agents, aerosols. Chemical reactions with such agents will lead to the destruction of the gasket, case, and polishing. Some watch straps have their characteristics printed on them. When cleaning such straps, be careful not to erase them. For watches with plastic straps... You may notice a whitish powdery deposit on the strap. This substance is harmless to your skin or clothing and can be removed by wiping the strap with a cloth. If moisture is left on a plastic strap or if the watch is left in a high-humidity environment, the strap may warp, crack, or tear. To preserve the plastic strap, wipe off dirt or moisture with a soft cloth as soon as possible. For watches with fluorescent straps and cases... Prolonged exposure to direct sunlight may cause the fluorescence color to fade. Prolonged contact with moisture may cause the fluorescence color to fade. Wipe moisture from the surface as soon as possible. Prolonged contact with other wet surfaces may cause the fluorescence color to fade. Wipe moisture from the fluorescent surface as soon as possible and avoid contact with other surfaces. Strong friction of a surface with a fluorescent print against another surface may cause the printed color to transfer to the other surface. CASIO COMPUTER CO LTD is not responsible for third-party claims that may arise from the use of this watch.

Auto EL Backlight (Continued)

The auto backlight indicator appears on the display in all modes when the function is enabled. To conserve battery power, the auto backlight function automatically turns off approximately 6 hours after being enabled. To use the backlight again, repeat the activation procedure. Pressing the [B] button at any time illuminates the screen, regardless of whether the auto backlight function is enabled.

Note: The backlight uses an electro-luminescent light source, which may lose its luminescence with prolonged use. Frequent use of the backlight shortens battery life. The watch emits a beep when the screen is illuminated. This sound is due to the electro-luminescent light source vibrating slightly when activated. This is normal and does not indicate a malfunction.

Warning! Do not read the watch display in the dark while climbing a mountain or in other difficult terrain, as this is dangerous and may lead to injury. Do not read the watch display while walking along a road or where vehicles are present, as this is risky and may lead to an accident. Do not read the watch display while cycling, operating a motorcycle, or driving a car, as this is dangerous and may lead to an accident. Before operating a vehicle, check that the auto backlight function on your watch is turned off. Sudden, unintentional activation of the auto backlight may distract you and lead to an accident.

World Time Mode

This mode displays the time for 27 cities (29 time zones) worldwide. Refer to the "City Code Table" at the end of this manual for a complete list of cities.

The time in Current Time and World Time modes is synchronized. Whenever you change the time setting for any time zone in Current Time mode, the time in all cities in World Time mode will adjust accordingly.

Selecting a City and Viewing its Time

1. In World Time mode, press the [D] button to scroll through city codes (time zones). Holding this button down speeds up the scrolling.
2. When the desired city code appears on the screen, press the [A] button to view the time in that city.

To return to the city code screen, press the [D] button. From this point, you can use the [D] button again to scroll through city codes.

Daylight Saving Time (DST)

During summer, clocks are set one hour forward from Standard Time. You can set Daylight Saving Time for each city individually. Note that not all countries and regions observe Daylight Saving Time.

Switching Between Daylight and Standard Time

1. In World Time mode, display the city code you want to switch to Standard or Daylight Time using the [D] button.
2. Press and hold the [A] button for 1 second to switch between Daylight Time (DST indicator on screen) and Standard Time (no indicator). The DST indicator appears on the display, indicating that Daylight Saving Time is active.

Phone Book Mode

The Phone Book mode allows you to store up to 30 entries, each containing a name (up to 8 characters) and a phone number (up to 14 characters). Names are automatically sorted alphabetically. You can scroll through the stored data on the screen. Refer to the "List of Symbols" at the end of this manual to see the order in which data is sorted. If the memory is empty or you are in the area between the last and first entry, a blank screen will appear when entering this mode. The data displayed when exiting Phone Book mode will appear first when re-entering the mode.

Entering Entries

1. In Phone Book mode, press the [B] and [D] buttons simultaneously to display a new entry screen. A new entry is a blank line, not containing a name or phone number. If a blank screen does not appear, the watch's memory is full. You will need to delete some old entries to add new ones.
2. Press and hold the [A] button until the cursor appears on the display.
3. Use the [D] and [B] buttons to select the desired character for the cursor position. Characters cycle in the following order: [Space] from A to Z ([D] button), 0 to 9 ([B] button), and symbols ([.], [-], [/], [:], [']). Holding these buttons down scrolls characters at an accelerated rate.
4. After selecting the desired character, press the [C] button to move the cursor to the right. Repeat steps 3 and 4 until the name is entered completely.
5. After entering the name, press [C] to move to the phone number input screen ("-----").
6. You can enter up to 8 characters for the name, but only 6 will be displayed at once. If the entered name is shorter than 8 characters, use the [C] button to move the cursor to the eighth position. (For example, if the name has 5 characters, you will need to press [C] 3 times.) The text part can contain up to 8 characters. When the cursor is in the eighth position of the text part, entering the last character will move the cursor to the first position of the phone number zone. From the fourteenth digit of the phone number, the cursor will jump to the first character of the text.
7. In the phone number input area, use the [B] or [D] buttons to set the desired digit at the cursor position. Holding down these buttons allows you to scroll through digits at a higher speed. Digits scroll in the following sequence: 0 to 9 ([D] button), [Space], [Hyphen] ([B] button).
8. After selecting the desired digit, press the [C] button to move to the right to set the next digit. Repeat steps 7 and 8 until the phone number is entered completely. You can enter up to 14 digits for the number.
9. After entering the data, press the [A] button to save it. When you press [A] to save, the message "SORT" appears for a few seconds, indicating that the watch is sorting the data. After sorting is complete, the cursor is positioned in the text area, ready for a new entry.
10. Enter the next entry (starting from step 3 above) or press [A] again to return to Phone Book mode (without a cursor). The display may show six characters or nine digits at once. Longer messages scroll from right to left. The "<" indicator shows that the character to its left is the last one, and the character to its right is the first in the entry. If you press the [D] button while a name is scrolling, the cursor will jump to the first character of the name. Scrolling will resume from that point. If you press the [D] button while a phone number is scrolling, the cursor will jump to the first character of the number. Scrolling will resume from that point.

Precautions: In the following cases, all data entered into the phone book may be erased. It is recommended to keep copies of particularly important data. Watch malfunction or repair / Battery failure / Battery replacement. CASIO is not liable for data loss or damage resulting from such loss.

Phone Book Mode (Continued)

Viewing Entries

1. In Phone Book mode, press the [D] button to scroll forward through the names of the entries. Holding this button down scrolls data at an accelerated rate.
2. When the desired name appears on the screen, press the [A] button to view the phone number. Pressing the [D] button while the phone number is displayed returns the screen to showing the name. At this point, you can press [D] again to start scrolling through names.

Editing Entries

1. In Phone Book mode, scroll to the entry you wish to edit using the [D] button. Holding this button down scrolls data at an accelerated rate.
2. Press and hold the [A] button until the cursor appears on the screen.
3. Use the [C] button to move the cursor to the character you want to change.
4. Change the selected character using the [B] or [D] buttons. Refer to section 3 of "Entering Entries" for details on entering characters and section 7 for entering digits.
5. After making changes, press the [A] button to save them to memory and exit the setting mode. After pressing [A], the message "SORT" appears for a few seconds, indicating that the watch is sorting the entries.

Deleting Entries

1. In Phone Book mode, scroll to the entry you wish to delete using the [D] button. Holding this button down scrolls data at an accelerated rate.
2. Press and hold the [A] button until the cursor appears on the screen.
3. Press the [B] and [D] buttons simultaneously to delete the entry. The message "CLEAR" appears on the screen, indicating that the entry has been deleted. The cursor will appear in the text part of the screen at this time.
4. Enter new data or press [A] to return to the original Phone Book mode.

Alarm Mode

You can set up to 5 independent alarms. For each alarm, you can set the hour and minutes. When the Daily Alarm is active, a 20-second alarm sounds at the set time. Press any button to stop the alarm. When the Hourly Chime is active, a signal sounds at the beginning of each hour.

The Hourly Chime indicator appears on the screen in all modes if the Hourly Chime is enabled.

Checking Alarms

Press and hold the [D] button in Alarm mode to sound the alarm. The alarm cannot be checked if you are in the alarm setting mode. Holding the [D] button to check the alarm also changes the alarm number.

Setting Alarm Time

1. In Alarm mode, press the [D] button to select the alarm number you wish to set.
2. After selecting the desired alarm number, press and hold the [A] button until the hour digits start flashing on the screen. Flashing digits indicate that this value can be changed. This operation automatically enables the alarm.
3. Press the [C] button to move the flashing value to other fields in the following sequence: Hours, Minutes.
4. Press the [D] (+) and [B] (-) buttons to change the selected value. Holding these buttons down accelerates the change. The time format (12- or 24-hour) matches the format selected in Current Time mode. If you use the 12-hour format, be careful not to confuse the AM (indicator A) and PM (indicator P) times.
5. After setting the alarm time, press the [A] button to return to the Alarm mode.

Enabling and Disabling Alarms and Hourly Chime

1. In Alarm mode, press the [D] button to select the desired alarm or hourly chime.
2. Press the [A] button to turn these signals on or off.

The Daily Alarm indicator appears on the display when the currently displayed alarm is active. In all other modes, this indicator appears if at least one of the five alarms is enabled. The alarm indicator does not appear if all alarms are turned off.

Stopwatch Mode

This mode allows you to measure elapsed time and record the first two finishers in competitions. The total elapsed time range is limited to 59 minutes and 59.99 seconds. You can use the backlight by pressing the [B] button while the stopwatch is running.

Measurement Types:

• a) Normal Time Measurement: Press [D] to start, press [D] to stop.
• b) Lap Time Measurement: Press [D] to start, press [A] to record a lap time, press [D] to stop.
• c) Split Time Measurement and Recording 1st and 2nd Place Finishers: Press [D] to start. Press [A] to split time (records 1st finisher). Press [D] to resume. Press [A] again to split time (records 2nd finisher). Press [D] to stop. Press [A] to reset.

Diagrams illustrate the button operations for different stopwatch measurement types.

Hand Setting Mode

Use this mode to correct the position of the analog hands if the digital time does not match. Diagram shows the analog hands and digital time display.

1. In Hand Setting mode, press and hold the [A] button until the "SET" message flashes on the screen.
2. Each press of the [D] button advances the hands by 20 seconds. Holding this button down advances the hands at an accelerated rate.
3. After setting the hands to the desired position, press the [A] button to exit the setting mode.

Note: You can only advance the hands forward. Be careful not to advance them past the desired position. If the minute hand is delayed due to the timing of the [D] button press, repeat the hand setting operation.