Casio Watch User Manual

Important Information

Please read this important information before proceeding.

Battery

If you notice signs of insufficient power, such as unclear display or no backlight, replace the battery at an authorized CASIO dealer or distributor. The battery included in new watches is for initial testing purposes and may have a shorter service life than standard batteries.

Water Resistance

Watches are classified by water resistance levels (from I to V). Refer to the table below to determine usage guidelines for your watch model.

Notes for respective categories:

• I: Water-resistant watches. Avoid any contact with water.
• III: If the watch is exposed to salt water, rinse it thoroughly and dry it.
• IV: If the watch is exposed to salt water, rinse it thoroughly and dry it.
• V: This watch can be used for scuba diving (excluding depths requiring helium-oxygen mixtures).

ATTENTION!!! For all categories of watches, it is forbidden to:

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

IMPORTANT!!! Some water-resistant watches have leather straps. Do not wear these watches while swimming or during any other activity where the strap might get wet.

Watch Care

Regular maintenance is crucial for longevity.

• The rubber gasket that protects the watch from water and dust should be replaced every 2-3 years.
• If moisture enters the watch, have it inspected immediately by an authorized CASIO dealer or distributor.
• Avoid exposing the watch to extreme high or low temperatures.
• While watches are designed for normal use, avoid rough handling and dropping them.
• Do not fasten the strap too tightly. A finger should fit 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 like gasoline, solvents, spray cleaners, etc.
• When not in use, store the watch in a dry place.
• Avoid contact with gasoline, cleaning solvents, spray aerosols, adhesives, paint, etc. Chemical reactions from these materials can damage gaskets, the case, and the watch's finish.
• Some models feature silk-screened designs on their straps. Clean these straps carefully 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 skin or clothing and can be easily removed by wiping with a soft cloth.
• Sweat or moisture on a polymer strap, or storage in high humidity, can lead to damage, tearing, or cracking. To ensure a long service life for the polymer strap, wipe it clean of dirt and moisture 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 can cause the fluorescent color to gradually fade. Remove any moisture from the watch surface as soon as possible.
• Prolonged contact with a damp surface may cause discoloration of the fluorescent color. Ensure the fluorescent surface is free of moisture and avoid contact with other surfaces.
• Strong friction of a surface with applied fluorescent paint against another surface may transfer the fluorescent paint.

Operating Instructions

Setting the Time (Digital Display)

1. In Timekeeping Mode, press and hold [C] until the seconds digits start flashing.
2. Press [C] to cycle through the flashing digits: Seconds → Hours → Minutes → Timekeeping Mode.
3. When the seconds digits are flashing, press [B] to reset them to "00". If you press [B] when the seconds are between 30 and 59, the seconds reset to "00" and 1 is added to the minutes. If seconds are between 00 and 29, the minutes remain unchanged.
4. When any other value is flashing, press [B] to increase it. Holding [B] down increases the value at high speed.
5. When the 12/24-hour format is flashing, press [B] to switch between formats.
6. After setting the time and format, press [C] to return to Timekeeping Mode.

If you do not press any button for several minutes while a value is flashing, the watch automatically returns to Timekeeping Mode and the flashing stops.

Setting the Analog Time

Pull out Crown [A] to the first click. Rotate the Crown [A] to set the time. Push the Crown [A] back to its original position.

Setting the Date

1. In Date Mode, press and hold [C] until the month digits start flashing.
2. Press [C] to cycle through the flashing digits: Month → Date → Day of Week → Date Mode.
3. When the month or date digits are flashing, press [B] to increase the value. When the day of the week is flashing, press [B] to advance to the next day. Holding [B] down increases the value at high speed.
4. After setting the date, press [C] to return to Date Mode.

The watch does not automatically adjust for leap years. Manually set February 29th if applicable.

If you do not press any button for several minutes while a value is flashing, the flashing stops and the watch automatically returns to Timekeeping Mode.

Alarm Mode

The Daily Alarm sounds for 20 seconds at the set time each day. Press any button to stop the alarm. The Hourly Chime sounds at the start of each hour. Both functions operate based on the time set in the digital display.

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

Setting the Alarm

1. In Alarm Mode, press and hold [C] until the hour digits start flashing.
2. Press [C] to cycle through the flashing digits: Hour → Tens of Minutes → Minutes → Alarm Mode → Alarm/Hourly Chime Setting.
3. When in Alarm Mode, pressing [C] again will make the hour digits flash.
4. Press [B] to increase the flashing value. Holding [B] down increases the value at high speed. The alarm format (12/24-hour) matches the format set in Timekeeping Mode. For 12-hour format, ensure you set AM or PM correctly.
5. When the Alarm/Hourly Chime setting is flashing, press [B] to cycle through the settings: All On → All Off → Alarm Only → Hourly Chime Only.
6. After completing the settings, press [C] to return to Alarm Mode.

If you do not press any button for several minutes while a value is flashing, the flashing stops and the watch automatically returns to Timekeeping Mode.

Checking the Alarm

Press and hold [B] in any mode to sound the alarm. Note that 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 is useful for tracking time in another time zone.

Setting Dual Time

1. In Dual Time Mode, press and hold [C] until the hour digits start flashing.
2. Press [C] to cycle through the flashing digits: Hours → Minutes → 12/24-Hour Format → Dual Time Mode.
3. When in Dual Time Mode, pressing [C] again will make the hour digits flash.
4. Press [B] to increase the selected value. Holding [B] down increases the value at high speed. When setting the 12/24-hour format, press [B] to switch between formats.
5. After completing the settings, press [C] to return to Dual Time Mode.

If you do not press any button for several minutes while a value is flashing, the flashing stops and the watch automatically returns to Timekeeping Mode.

Stopwatch Mode

The stopwatch can measure elapsed time up to 59 minutes and 59.99 seconds.

Measuring Full Time Event

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

Measuring Lap Times

1. Press [C] to start the stopwatch.
2. Press [C] to stop the stopwatch.
3. Press [C] again to display the cumulative time of all measured segments. You can repeat steps 2 and 3 as needed.
4. Press and hold [C] to reset the stopwatch to 00:00.00.

Technical Specifications

• Accuracy: ±30 seconds per month (at normal temperature).
• Timekeeping: Hour, Minutes, Seconds, AM/PM indicator.
• Digital Display: Hour, Minutes, Seconds, AM/PM.
• Analog Dial: Hour, Minutes.
• Time Format: 12-hour and 24-hour format switching.
• Date: Month, Day, Day of Week.
• Calendar System: Auto-calendar (pre-programmed for 28 days in February).
• Alarm: Daily alarm, Hourly chime.
• Stopwatch:
  • Measurement unit: 1/100 second.
  • Measuring capacity: 59 minutes, 59.99 seconds.
  • Measuring modes: Elapsed time, split times, 1st-2nd place times.
• Other: Different time zone settings.
• Battery: One battery (Type SR-920W).
• Battery Life: Approximately 3 years (based on 20 seconds of alarm use per day).

Product Information

• Product Name: Wristwatch (Electronic / Electro-mechanical Quartz) (Men's/Women's)
• Brand: CASIO
• Manufacturer: CASIO COMPUTER Co., Ltd.
• Manufacturer Address: 6-2, Hon-machi 1-chome, Shibuya-ku, Tokyo 151-8543, Japan
• Importer: LLC "Casio", Moscow, Russia.
• Country of Origin: Japan
• Warranty Period: As specified in the warranty card.
• Authorized Service Center Address for Claims: Refer to the warranty card.
• Product Compliance: Complies with GOST 26270-98 (clause 4.35).
• Certificate of Conformity No.: РОСС JP. АЯ46.Д42228 / РОСС JP. АЯ46.Д42071 / РОСС JP. АЯ46.Д42230