Casio Module 4334 Watch

Important Information

Battery

The battery installed at the factory may discharge during delivery and storage. If you notice signs of insufficient power (e.g., dim display), replace the battery at the nearest authorized CASIO service center or CASIO distributor.

Water Resistance

For all categories of watches, it is forbidden to:

• Press buttons underwater.
• Adjust hands underwater.
• Unscrew the crown underwater.

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

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

Notes:

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

Explanation of Water Resistance Ratings:

• II WR (Water Resistant): Indicates water resistance according to ISO 2281. Brief contact with water will not cause problems.
• III 5 Bar (50 meters): Capable of withstanding water pressure of the specified value; suitable for showering and brief swimming.
• IV 10 Bar (100 meters): Suitable for normal swimming and snorkeling.
• V 20 Bar (200 meters): Suitable for diving with scuba gear (excluding depths requiring helium-oxygen mixtures).

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 dealer or a CASIO distributor.
• Do not expose the watch to extreme temperatures.
• Although designed for active daily use, wear the watch carefully and avoid dropping it.
• 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 agents (e.g., gasoline, solvents, spray cleaners).
• When not in use, store your watch in a dry place.
• Avoid contact with gasoline, cleaning solvents, aerosol sprays, adhesives, paint, etc. Chemical reactions can damage gaskets, the case, and the watch's finish.
• Some models have silk-screened graphics on the strap. Clean these straps carefully to avoid damaging the graphics.

For Watches with Resin Straps...

• You may notice a white powdery substance on the strap. This substance is harmless to skin or clothing and can be easily removed by wiping with a cloth.
• Sweat or moisture on a resin strap, or storage in high humidity, can damage, tear, or crack the strap. To ensure a long service life for resin straps, wipe off 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 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 wet surface can cause the fluorescent color to fade. Check if moisture has been removed from the fluorescent surface and avoid contact with other surfaces.
• Strong friction of a surface with fluorescent paint against another surface can transfer the fluorescent paint to that surface.

In conditions of rapid temperature changes, slight condensation may form on the inside of the glass. 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 this watch and does not accept claims from third parties.

General Description of Operating Modes

The illustration shows the watch in the Current Time Mode. Press button "C" to cycle through modes in the following sequence:

Current Time Mode → Stopwatch Mode → Stopwatch Memory Mode → Countdown Timer Mode → Alarm Mode → World Time Mode → Analog Time Mode → Current Time Mode.

In any mode, press button "L" to activate the display backlight.

[Diagram showing watch face with buttons A, B, C, D, L and display elements like time, date, temperature]

Current Time Mode

Setting the Time and Date

1. In Current Time Mode, press button "A". The seconds display will start flashing.
2. Press button "C" to cycle through the settings: Seconds → DST (Daylight Saving Time) → Greenwich Mean Time Difference → Hours → Minutes → 12/24 Hour Format → Year → Month → Day → Temperature Sensor Calibration → Temperature Unit → Seconds.
3. If you are correcting seconds (seconds display flashing), press button "D" to reset seconds to 00. If you press "D" 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.
4. To change minutes and other values, use button "D" to increase and button "B" to decrease.
• Holding down a button allows values to change at a higher speed.
• The day of the week is set automatically according to the date.
5. You can set the year from 2000 to 2099.
6. Press button "D" to turn Daylight Saving Time (DST) ON or OFF.
7. Press button "D" to switch between 12-hour and 24-hour formats. In the 12-hour format, "A" indicates AM and "P" indicates PM.
8. Use buttons "D" and "B" to set the Greenwich Mean Time (GMT) difference. The GMT difference is the difference between Greenwich Mean Time (England) and your current location. This value can be set from -12.0 to +14.0.
9. Press button "D" to select the temperature unit: "°C" (Celsius) or "°F" (Fahrenheit).
10. When selecting temperature calibration mode, use buttons "D" and "B" to set the temperature within the range of +10°C to -10°C (or +18°F to -18°F). Previously saved temperature values will not change.
11. After completing the settings, press button "A" twice to return to Current Time Mode.
12. If no buttons are pressed for a while, the watch will automatically return to Current Time Mode.

Thermometer

This watch has a built-in sensor for measuring ambient temperature.

• Temperature measurements are taken every 2 minutes.
• Temperature values are displayed in Current Time Mode.
• Measurements are possible in the range of -10.0°C to 60.0°C (or 14.0°F to 140.0°F).
• Note that your body temperature, direct sunlight, or moisture can affect ambient temperature readings, making them inaccurate. Therefore, each time you intend to measure the temperature, remove the watch, shield it from direct sunlight, and prevent moisture from getting on it.
• If you believe the temperature readings are incorrect for any reason, you can calibrate the temperature sensor in Current Time Mode. Previously saved temperature values will not change.

Analog Time Mode

If the current analog time differs from the digital time for any reason, follow these steps to set the analog time:

1. In Analog Time Mode, press and hold button "A" until the current time display starts flashing.
2. Press button "D" to advance the time by 20 seconds.
   • Holding down the button allows values to change at a higher speed.
   • For even faster changes, press buttons "C" and "D" simultaneously, then release. The time will continue to advance. Press any button to stop.
3. After completing the settings, press button "A".
4. To return to Current Time Mode, press button "C".

Backlight

In any mode, press button "L" to activate the backlight.

The watch backlight automatically turns off when any alarm sounds.

• The backlight of these watches uses electro-luminescent (EL) panels, whose brightness may decrease after a certain period of use.
• When the display is illuminated, the watch emits an audible signal. This is because the backlight elements vibrate and is not an indication of malfunction.
• The backlight is difficult to see if direct sunlight falls on the watch.
• Frequent use of the backlight reduces battery life.

Auto Backlight

The Auto Backlight activates automatically whenever your hand is tilted at an angle of approximately 40 degrees from horizontal. Do not use the Auto Backlight function when light could be harmful or distracting, such as when riding a motorcycle or bicycle.

To enable the Auto Backlight function in Current Time Mode, press and hold button "D" for 3 seconds.

Stopwatch Mode

This watch features two types of stopwatches for measurements: a single-mode stopwatch (for measuring split times and total elapsed time) and a dual-mode stopwatch (for measuring split times and total elapsed time for two athletes, as well as the difference between their times).

• The maximum measurable time for the total elapsed time is 99 hours, 59 minutes, 59.99 seconds.
• The unit of measurement is 1/100 second for measurements up to 1 hour, and 1 second thereafter.
• All measurement data is automatically saved in the watch's memory.

Selecting Stopwatch Mode

• In Stopwatch Mode, press button "A" to select the stopwatch type: single-mode (indicator "ST1") or dual-mode (indicator "ST2").
• After resetting the stopwatch (pressing button "A"), press button "A" again to select the stopwatch type.
• The display shows the number of remaining memory slots for data saving (indicator "F"). This watch can save up to 50 records.

Using the Single-Mode Stopwatch

1. After selecting the single-mode stopwatch, press button "D" to start the stopwatch.
2. To record a split time, press button "D". After a few seconds, the measured time for the next segment will appear in the upper part of the display, and the total time from the start will appear in the lower part.
3. Each press of button "D" automatically saves the segment number, segment time, and total elapsed time from the start into the watch's memory. Up to 99 segments of a single distance can be saved this way.
4. When measurement is complete, press button "A" to reset the stopwatch to zero.

Using the Dual-Mode Stopwatch

1. After selecting the dual-mode stopwatch, press button "D" to start the first stopwatch.
2. Press button "D" again to record the split time for the first athlete.
3. To start the second stopwatch, press button "B". To record the split time for the second athlete, press button "B" again.
4. When both stopwatches are running simultaneously, press button "D" to record the time for one stopwatch, and button "B" to record the time for the other.
5. After a few seconds, the segment number and elapsed time for the "current" stopwatch will appear in the middle of the display. The time for that segment will appear in the upper or lower part of the display.
6. When recording the time for the other stopwatch, the elapsed time for that segment will appear in the lower or upper part of the display, with the difference between the two measurements in the opposite part.
7. If the times of both starters are the same, the "+/- " indicator will appear on the display.
8. If the time difference is more than 10 minutes, the "--" indicator will appear on the display.
9. Each press of buttons "D" and "B" automatically saves the segment number, segment time, and total elapsed time from the start into the watch's memory. Up to 99 segments of a single distance can be saved this way.
10. When measurement is complete, press button "A" to reset both stopwatches to zero.

Stopwatch Memory Mode

You can use this mode to view and delete saved measurement data.

1. In Stopwatch Memory Mode, press button "A" to scroll through records.
2. Use buttons "D" and "B" to scroll through data within a single record.

Single-Mode Stopwatch

The best time within a single record (indicator "BEST") is the distance number/segment time. ... indicates distance number/segment time.

Dual-Mode Stopwatch

The best time for the first stopwatch within a single record (indicator "BEST") / The best time for the second stopwatch within a single record (indicator "BEST") is the distance number/segment time (data for both stopwatches in different parts of the display).

Deleting Saved Data

1. In Stopwatch Memory Mode, press button "A" to select the record you want to delete.
2. Press buttons "D" and "B" simultaneously to delete data within a single record. The indicator "CLR" will appear on the display, indicating that the data within the record has been deleted.

Countdown Timer Mode

The countdown timer can be set for a range of 1 minute to 100 hours.

• When the countdown reaches zero, a long beep sounds.
• In auto-repeat mode, when the countdown reaches zero, a beep sounds, and the countdown restarts automatically from the preset value.

Setting the Timer Time

1. In Timer Mode, when the start time is displayed, press and hold button "A". The hour digits of the start time will flash.
2. Press button "C" to cycle through the settings: Hours → Minutes → Auto-repeat → Hours.
3. Use buttons "D" and "B" to input the start time values.
   • To set the timer for 24 hours, enter "0:00".
4. Use button "D" to turn Auto-repeat ON or OFF.
5. After completing the settings, press button "A".

Using the Timer

Press button "D" in Timer Mode to start the countdown.

• Press button "D" again to stop the countdown.
• You can resume the countdown by pressing button "D".
• After stopping the countdown, you can press button "A" to reset the countdown to the start time.

Alarm Mode

You can set a daily alarm. The alarm will sound for 10 seconds at the set time.

You can also set an hourly time signal. Two short beeps will sound at the beginning of each hour.

Setting the Alarm

1. In Alarm Mode, press and hold button "A". The hour digits will start flashing, indicating they are selected for setting. The alarm is automatically enabled at this point.
2. Press button "C" to cycle through the settings: Hours → Minutes → Hours.
3. Use button "D" to increase and button "B" to decrease the selected value. Holding down a button allows values to change at a higher speed.
4. The 12-hour or 24-hour format corresponds to the format you selected for the current time.
5. When using the 12-hour format, be careful to set the time correctly for AM or PM.
6. After completing the settings, press button "A" to return to Alarm Mode.

Checking the Alarm Sound

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

Enabling/Disabling Alarms and Hourly Time Signals

In Alarm Mode, press button "D" to cycle through the settings: All OFF → Alarm ON Only → Hourly Signal ON Only → All ON.

World Time Mode

In this mode, you can view the time in approximately 50 cities worldwide (30 time zones).

• World time values are synchronized with the current time, so there is no need to set them manually.
• Press buttons "D" and "B" to view times in different cities.
• To enable Daylight Saving Time:
1. Use buttons "D" and "B" to select the city for which you want to set Daylight Saving Time.
2. Press button "A" to turn Daylight Saving Time (DST) ON or OFF.

Note on Russian Time: According to a decree by the President of the Russian Federation in June 2011, daylight saving time was abolished throughout Russia. Federal Law No. 400-FZ of July 21, 2014, "On Amendments to the Federal Law 'On the Calculation of Time'," effective October 26, 2014, established 11 time zones in Russia, with most shifted back by one hour. Please consider this information when setting your watch.

Technical Specifications

• Accuracy: +-15 seconds per month under normal temperature.
• Current Time Mode: Displays hours, minutes, seconds, AM/PM indicator, year, month, day.
• Calendar System: Auto-calendar with full accuracy from 2000 to 2099.
• Other: 12/24 hour format, Daylight Saving Time (DST), thermometer.
• Analog Time Mode: Displays current time in any of the 50 world cities (30 time zones).
• Alarm Mode: Daily alarm, hourly time signal, time signal indication.
• Stopwatch Mode Selection: Single-mode, dual-mode (records times for two starters).
• Maximum Measurement Range: 99 hours 59 minutes 59.99 seconds.
• Stopwatch Memory: Automatic saving of measurement data, recording of best results.
• Countdown Timer: Range from 1 minute to 100 hours. Auto-repeat function.
• Other: Backlight (electro-luminescent panel), Auto Backlight.
• Power: Two batteries (SR927W).

Product Information

Name: Electronic / Electro-mechanical Quartz Wristwatches (Men's/Women's)

Brand: CASIO

Manufacturer: CASIO COMPUTER Co., Ltd. (CASIO Computer Co., Ltd.)

Manufacturer's Address: 1-6-2, Hon-machi 1-chome, Shibuya-ku, Tokyo 151-8543, Japan

Importer: OOO "Casio", 127015, Russia, Moscow, ul. Butyrskaya, d. 77

Warranty Period: 2 years

Address of Authorized Organization for Claims: Indicated on the warranty card.