CASIO MSG-133/135 Module 2488 User Manual

Important Information

ATTENTION!!!

For all watch categories, the following are prohibited:

• Pressing buttons underwater
• Setting hands underwater
• Unscrewing the crown underwater

IMPORTANT!!!

• Some water-resistant watches feature leather straps. Do not wear these watches while swimming or engaging in any activity where the strap may be submerged.

Battery

• If you notice signs of low battery power (faint display or no backlight), replace the battery at an authorized CASIO dealer or distributor. The battery included with your watch may be a test battery, potentially having a shorter service life than a standard battery.

Water Resistance

Watches are classified by water resistance rating (from I to V) according to their protection level. Refer to the table below to determine the rules for using your watch.

Notes for respective sections:

• I. The watch is not water-resistant. Avoid any contact with moisture.
• III. If the watch is exposed to saltwater, rinse it thoroughly and dry it.
• IV. If the watch is exposed to saltwater, rinse it thoroughly and dry it.
• V. The watch can be used for scuba diving (except for depths requiring helium-oxygen mixtures).

Care of Your Watch

• The 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 an authorized CASIO dealer or distributor.
• Avoid exposing the watch to extreme high or low temperatures.
• While the watch is designed for normal use, avoid rough handling and do not drop it.
• Do not fasten the strap too tightly. There should be space for a finger between your wrist and the strap.
• To clean the watch and strap, use a dry, soft cloth, or a soft cloth dampened with a mild neutral detergent solution. Never use volatile substances such as gasoline, solvents, or aerosol cleaners.
• When not in use, store the watch in a dry place.
• Avoid contact with gasoline, cleaning solvents, aerosol sprays, adhesives, paints, etc. Chemical reactions with these materials can damage gaskets, the case, and the watch's finish.
• Some watch models feature silk-screened designs on their straps. Be careful when cleaning these straps to avoid damaging the designs.

For Watches with Polymer Straps...

• You may notice a white powdery substance on the strap. This substance is harmless to your skin or clothing and can be easily removed by wiping with a soft cloth.
• Exposure of a polymer strap to sweat or moisture, or storing it in high humidity conditions, can lead to damage, cracking, or peeling of the strap. To ensure a long service life for the polymer strap, wipe it clean of dirt and water with a soft cloth as often as possible.

For Watches with Fluorescent Cases and Straps...

• Prolonged exposure to direct sunlight may cause the fluorescent color to gradually fade.
• Prolonged contact with moisture may cause the fluorescent color to gradually fade. If any moisture gets on the watch surface, remove it as soon as possible.
• Prolonged contact with a wet surface may lead to discoloration of the fluorescent color. Ensure the fluorescent surface is kept dry and avoid contact with other surfaces.
• Friction of a surface with fluorescent paint against another surface may transfer the fluorescent paint to that surface.

CASIO COMPUTER CO., LTD. is not responsible for any damage that may occur from the use of this watch and accepts no claims from third parties.

General Description of Operating Modes

The figure below shows the watch in the current time mode. Press the "C" button to switch between modes.

[Diagram Description: The watch face display shows the current time. Labels indicate: Year-Month-Day, PM Indicator, DST Indicator, Hour, Minute, Second, Day of the Week. Buttons are labeled A, B, C, D.]

The modes are: Current Time Mode ➡️ Memo Mode ➡️ Day Count Mode ➡️ Alarm Mode ➡️ Stopwatch Mode ➡️ Dual Time Mode ➡️ Current Time Mode.

Press button "B" in any mode to illuminate the display.

Current Time Mode

Press button "D" to switch between 12-hour and 24-hour formats. When the 12-hour format is active, the display shows "P" for PM (afternoon) and "A" for AM (morning).

Setting Time and Date

1. In Current Time Mode, press button "A". The seconds digits will flash.
2. Press button "C" to cycle through the settings: Seconds ➡️ DST (Daylight Saving Time) ➡️ Hours ➡️ Minutes ➡️ Year ➡️ Month ➡️ Day ➡️ Seconds.
3. While the seconds digits are flashing, press button "D" to reset the seconds to "00". If button "D" is pressed when the seconds are between "30" and "59", the minutes will be incremented by 1 and the seconds will reset to "00". If seconds are between "00" and "29", the minutes remain unchanged.
4. To adjust other settings (except seconds), use button "D" to increase and button "B" to decrease the values.
5. To enable or disable Daylight Saving Time (DST), press button "D". The display will show "DST" when it is active.
6. Holding down buttons allows for faster adjustment.
7. After completing time and date settings, press button "A" to return to Current Time Mode.

• The day of the week is set automatically based on the date.
• The date can be set from January 1, 2000, to December 31, 2039.
• If no buttons are pressed for several minutes while a setting is flashing, the flashing will stop, and the watch will automatically return to Current Time Mode.

Backlight

Press button "B" in any mode to illuminate the display for three seconds.

• The backlight of this watch has multiple colors.
• The backlight uses electro-luminescent (EL) elements, whose power decreases after prolonged use.
• The watch emits an audible signal when the display is illuminated. This is due to the backlight elements vibrating and does not indicate a malfunction.
• The backlight may be difficult to see in direct sunlight.
• Frequent use of the backlight shortens battery life.
• The backlight automatically turns off when an alarm sounds.

Phone Book Mode

This mode allows you to store up to 25 entries, each consisting of a name (up to 8 characters) and a phone number (up to 12 characters).

Entering Data in Phone Book Mode

1. In Phone Book Mode, press button "D" until the first empty entry appears (blank display).
2. If no empty entry appears, the phone book is full, and you must delete an old entry to save a new one.
3. Press and hold button "A". A cursor ( _ ) will appear in the text area.
4. Enter characters in the text part using buttons "B" and "D". Characters cycle through: Space ➡️ "A-Z" ➡️ "0-9" ➡️ "." ➡️ "-" ➡️ Space.
5. After selecting a character, press "C" to move the cursor to the right.
6. Repeat steps 3 and 4 to enter the full name. You can enter up to 8 characters. The display may only show three characters at a time; press "C" to scroll through the full name.
7. Once the name is entered, press "C" to move the cursor to the number area.
8. Enter characters in the number area using buttons "B" and "D". Characters cycle through: "-" ➡️ "0-9" ➡️ Space ➡️ "-".
9. After selecting a character, press "C" to move the cursor to the right.
10. Repeat steps 7 and 8 to enter the full phone number. The phone number field can hold up to 12 characters.
11. After entering the data, press button "A" to save it to memory.
12. After pressing "A" to save, the display will show "SORT" for a few seconds.

Viewing Data

In Phone Book Mode, press button "D" to scroll through the entries.

• Holding down a button allows you to scroll through entries at a faster speed.
• The entry displayed when you exited Phone Book Mode will appear first when you re-enter the mode.

Editing Data in Phone Book Mode

1. In Phone Book Mode, scroll through the entries using button "D" and find the entry you wish to edit.
2. Press button "A"; a cursor will appear in the text area.
3. Use button "C" to move the cursor to the character you want to change.
4. Change the character using buttons "B" and "D".
5. Refer to the "Entering Data in Phone Book Mode" section for character details.
6. After making the necessary changes, press button "A" to save to memory and return to Phone Book Mode.

Deleting Data in Phone Book Mode

1. In Phone Book Mode, scroll through the entries using button "D" and find the entry you wish to delete.
2. Press button "A"; a cursor will appear in the text area.
3. Press and hold buttons "B" and "D" simultaneously to delete the entry.
4. The message "CLR" indicates the entry has been deleted. The cursor will appear in the text area, ready for new data entry.
5. Enter new data or press button "A" to return to Phone Book Mode.

Day Count Mode

This mode allows you to count down days from the current date to a set date. You can set up to 5 entries, each with a date and text up to 8 characters.

The display shows "DAYS" when the set date matches the current date.

Setting Date

1. In Day Count Mode, press button "D" to select the counter you want to set.
2. Press button "A" until the cursor flashes on the display.
3. Press button "C" to move between setting fields in the following sequence: 1st character ➡️ 8th character ➡️ Year ➡️ Month ➡️ Day ➡️ 1st character.
4. When the cursor is in the text area, use buttons "D" or "B" to select characters in the following sequence: Space ➡️ "A-Z" ➡️ "0-9" ➡️ "." ➡️ "-" ➡️ Space.
5. When the cursor is in the date area, use button "D" to increase and button "B" to decrease the value.
6. To delete an entry in this mode, press and hold buttons "D" and "B" simultaneously. The display will show "CLR", and the current date will be set in the date field.
7. After completing the settings, press button "A".

• Dates can be set from January 1, 1940, to December 31, 2039.

Viewing Data

In Day Count Mode, press button "D" to scroll through the entered entries.

Alarm Mode

You can set a daily alarm. When the set time is reached, the alarm will sound for 20 seconds. You can stop the alarm by pressing any button. If the hourly chime is enabled, a short beep will sound at the start of each hour.

Setting Alarm Time

1. In Alarm Mode, press button "A" to start setting. The hour digits will flash.
2. The alarm time setting mode is automatically activated.
3. Use button "C" to move between the values to be set: Hour ➡️ Minutes.
4. Use button "D" to increase and button "B" to decrease the value. Holding down a button allows for faster adjustment.
5. When setting the alarm time in 12-hour format, ensure you select the correct AM/PM time.
6. After setting the hour and minute values, press button "A" again to save the alarm settings.

Turning On/Off Alarm and Hourly Chime

Press button "D" in Alarm Mode to cycle through the settings:

• All Off
• All On
• Alarm Only
• Hourly Chime Only
• All On

Checking Alarm Sound

Press and hold button "D" in Alarm Mode to check the alarm sound.

Stopwatch Mode

The stopwatch mode allows you to measure individual time intervals, split times, and dual finishes. The maximum measurement range is 23 hours, 59 minutes, 59.99 seconds.

Press button "B" to illuminate the display.

a) Measuring Individual Time Intervals

▶️ (Start) ➡️ ⏹️ (Stop) ➡️ ▶️ (Restart) ➡️ ⏹️ (Stop) ➡️ A (Reset)

b) Measuring Split Times

▶️ (Start) ➡️ A (Split) ➡️ A (Resume) ➡️ ⏹️ (Stop) ➡️ A (Reset)

c) Dual Finish

▶️ (Start) ➡️ A (Split - 1st Finish) ➡️ D (2nd Finish - displays 1st finish time) ➡️ A (Cancel Split - displays 2nd finish time) ➡️ A (Reset)

Dual Time Mode

This mode allows you to view the time in a different time zone.

Setting Dual Time

• Press button "D" to advance the time by 30-minute increments.
• Pressing button "A" sets the current time as the dual time.
• The 12-hour/24-hour format selected in Current Time Mode is also applied to Dual Time Mode.

Technical Specifications

• Accuracy: ±15 seconds per month at normal temperature.
• Current Time Mode: Hours, minutes, seconds, AM ("A") / PM ("P"), year, month, day, day of the week.
• Time Display Format: Switchable between 12-hour and 24-hour formats.
• Calendar: Auto-calendar from 2000 to 2039.
• Standard Time, Daylight Saving Time (DST): Yes.
• Phone Book Mode: 25 entries (Name - up to 8 characters, Phone Number - up to 12 characters). Auto-sort.
• Day Count Mode: 5 entries for countdown (8 characters per entry, year, month, day).
• Alarm Mode: Daily alarm, hourly chime.
• Stopwatch Mode:
  • Unit of Measurement: 1/100 second.
  • Maximum Measurement Range: 23 hours, 59 minutes, 59.99 seconds.
  • Measurement Modes: Lap times, split times, dual finish.
• Dual Time Mode: Hours, minutes, seconds, AM (A) / PM (P).
• Other: Multi-backlight (electro-luminescent panel).
• Power Supply: One lithium battery (CR1620). Battery life is approximately 3 years with 3 seconds of backlight use per day and 20 seconds of alarm use. Battery life is approximately 2 years with 3 daily alarms. Battery life is approximately 12 months with 8 daily alarms.

Product Information

Product conforms to GOST 26270-98 (cl. 4.35).

Certificate of Conformity No. РОСС ЈР. АЯ46.Д42228 / РОСС ЈР. АЯ46.Д42071 / РОСС ЈР. АЯ46.Д42230