CASIO Module No. 1301

Important Information

Battery

The battery installed at the factory may discharge during shipping and storage. If you notice the first signs of low power (e.g., a dim display), the battery needs to be replaced. Contact your nearest CASIO authorized service center or a CASIO distributor for replacement.

Water Resistance

For all categories of watches, the following are prohibited:

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

If the watch is exposed to saltwater, rinse it thoroughly with fresh water and dry it completely. Do not wear watches with leather straps while swimming. Avoid prolonged contact of leather straps with water.

Water Resistance Ratings

Watches are classified by water resistance ratings (from I to V) according to their level of protection against water. Check your watch's rating using the table below to determine its proper usage.

Note:

• Rating I: Watches are not water-resistant. Avoid any moisture ingress.

Water Resistance Explanations

• II WR (Water Resistant): Indicates the model is waterproof according to ISO 2281. Brief contact with water will not cause any problems.
• III 5 Bar (50 meters): Watches are capable of withstanding water pressure of the indicated level and can be used while showering and for brief swimming.
• IV 10 Bar (100 meters): Indicates that the watch can be used during regular swimming and snorkeling.
• V 20 Bar (200 meters): Indicates that the watch can be used for scuba diving (excluding depths that require a helium-oxygen mixture).

Care for Your Watch

• 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 to 3 years.
• If moisture enters the watch, have it checked immediately by your nearest dealer or CASIO distributor.
• Do not expose the watch to extreme temperatures.
• Although the watch is designed for active daily use, wear it carefully and avoid drops.
• Do not fasten the strap too tightly. You should be able to fit 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 (e.g., gasoline, solvents, spray cleaners, etc.).
• When you are not using your watch, store it in a dry place.
• Avoid contact with gasoline, cleaning solvents, spray aerosols, adhesives, paint, etc. Chemical reactions caused by these materials can damage gaskets, the case, and the watch's polish.
• Some watch models feature silk-screened designs on their straps. Be careful when cleaning such straps to avoid damaging these patterns.

Care for Specific Strap Types

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 wiping with a cloth.
• Exposure of plastic straps to sweat or moisture, or storing them in high humidity conditions, can lead to damage, tearing, or cracking. To ensure a long service life for the plastic strap, wipe it clean of dirt and water with a soft cloth at the first opportunity.

For watches with fluorescent cases and straps:

• Prolonged exposure to direct sunlight can cause the fluorescent color to gradually fade.
• Prolonged contact with moisture can cause the fluorescent color to gradually fade. If moisture gets on the watch surface, wipe it off as soon as possible.
• Prolonged contact with any other damp surface can cause the fluorescent color to discolor. Check that moisture has been removed from the fluorescent surface and avoid contact with other surfaces.
• Strong friction of a surface with applied fluorescent color against another surface can transfer the fluorescent color to that surface.

General Information

Press button B to cycle through modes:

Timekeeping Mode ➡️ Date Mode ➡️ Alarm Mode ➡️ Stopwatch Mode

Setting the Time on the Digital Display

1. Press and hold button C in Timekeeping Mode until the seconds start flashing.
2. Press button C to move the flashing digit through the display in the following sequence: Seconds ➡️ Hours ➡️ Minutes ➡️ Timekeeping Mode.
3. Once you return to Timekeeping Mode, you can press button C again to make the seconds flash.
4. When the seconds value is selected (flashing), press button B to reset the seconds to "00". If you press button B while the seconds are between 30 and 59, the seconds will reset to "00" and 1 minute will be added to the minutes value. If the seconds are between 00 and 29, the minutes value will remain unchanged.
5. When any other value is selected, press button B to increase it. Holding the button pressed allows you to change the selected value at high speed.
6. When the 12/24-hour format is selected, press button B to switch between these formats.
7. After completing time and format settings, press button C to return to Timekeeping Mode.
8. If you do not press any button for several minutes while a value is flashing, the watch will automatically return to Timekeeping Mode and the flashing will stop.

Setting the Analog Time

In any mode, you can press button A to advance the hands to the desired position. Press and hold button A to advance the hands at high speed. You can only move the hands in one direction.

Date Settings

1. Press and hold button C in Date Mode until the month value starts flashing.
2. Press button C to move from digit to digit in the following sequence: Month ➡️ Date ➡️ Day of Week ➡️ Date Mode.
3. Once you reach Date Mode, you can press button C again to make the month value flash on the display.
4. While the month or date values are flashing, press button B to increase them. When the day of the week is selected, press button B to advance to the next day. Holding button B pressed allows you to change the selected value at high speed.
5. After setting the date, press button C to return to Date Mode.
6. The watch does not automatically adjust for leap years. Be attentive and manually set February 29th if it exists.
7. If you do not press any button for several minutes while a value is flashing, the flashing will stop and the watch will automatically return to Timekeeping Mode.

Alarm Mode

When the Daily Alarm function is on, the alarm sounds for 20 seconds at the set time every day. Press any button to stop the audible signal. When the Hourly Time Signal is on, it sounds at the start of each hour. Note that the alarm and hourly time signal operate based on the digital time setting.

If you do not press any button for several minutes in Alarm Mode, the watch will automatically return to Timekeeping Mode.

Setting the Alarm

1. Press and hold button C in Alarm Mode until the digital hour value starts flashing. The hour value flashes as it is selected for setting.
2. Press button C to move the flashing value from digit to digit in the following sequence: Hour ➡️ Ten Minutes ➡️ Minutes ➡️ Alarm Mode ➡️ Alarm/Hourly Signal.
3. Press button B to increase the flashing value. Holding the button pressed allows you to change the selected value at high speed.
4. The alarm format (12- or 24-hour) matches the format selected in Timekeeping Mode. When using the 12-hour format, carefully note whether you have set AM or PM.
5. When the Alarm/Hourly Signal setting is selected, press button B to turn these signals on and off in the following sequence: Both On ➡️ Both Off ➡️ Alarm Only ➡️ Hourly Signal Only.
6. After completing the settings, press button C to select Alarm Mode.
7. If you do not press any button for several minutes while a value is flashing, the flashing will stop and the watch will automatically return to Timekeeping Mode.

Testing the Alarm

Press and hold button B in any mode to sound the alarm. Note that pressing this button is also used for changing modes.

Dual Time Mode

The Dual Time function allows you to set a second digital time, independent of the current analog time. This enables you to track time in another time zone.

Setting Dual Time

1. Press and hold button C in Dual Time Mode until the digital hour value starts flashing.
2. Press button C to move the flashing value from digit to digit in the following sequence: Hour ➡️ Minutes ➡️ 12/24-Hour Format ➡️ Dual Time Mode.
3. Press button B to increase the selected value. Holding this button pressed changes the selected display at high speed. When the 12/24-hour format is selected for setting, press button B to switch between these formats.
4. After completing the settings, press button C to return to Dual Time Mode.
5. If you do not press any button for several minutes while a value is flashing, the flashing will stop and the watch will automatically return to Timekeeping Mode.

Stopwatch Mode

In Stopwatch Mode, you can measure elapsed time and cumulative time. The stopwatch measurement range is 59 minutes, 59.99 seconds.

Measuring Elapsed Time

1. Press button C to start the stopwatch.
2. Press button C to stop the stopwatch.
3. Press and hold button C to reset the stopwatch to 00:00.00.

Measuring Cumulative Time

1. Press button C to start the stopwatch.
2. Press button C to stop the stopwatch.
3. Press button C again for the cumulative time of all measured intervals to appear on the display. You can repeat steps 2 and 3 as many times as you wish.
4. Press and hold button C to reset the stopwatch to 00:00.00.

Technical Specifications

Product Information