Casio WVA-460DSE User Manual
Module 4321/4322
Important Information
Battery
If you notice signs of insufficient power, such as a dim display or no backlight, the battery must be replaced by a CASIO dealer or distributor. The battery included with your watch may be a test battery, so its service life may be shorter than standard batteries.
Water Resistance
Watches are classified by water resistance level (from I to V). Refer to the table below to determine usage rules.
| Marking on Case | Rain, Splash, Washing | Swimming, Washing | Skin Diving, Scuba Diving | |
| I | No | No | No | No |
| II WATER RESISTANT | Yes | No | No | No |
| III 50M WATER RESISTANT | Yes | Yes | No | No |
| IV 100M WATER RESISTANT | Yes | Yes | Yes | No |
| V 300M WATER RESISTANT | Yes | Yes | Yes | Yes |
Notes for relevant sections:
- Watches are not waterproof. Avoid any moisture.
- Some water-resistant watches have leather straps. Do not wear these watches while swimming or engaging in any activity where the strap may be submerged in water.
- If the watch is exposed to salt water, rinse it thoroughly and dry it.
- If the watch is exposed to salt water, rinse it thoroughly and dry it.
- Watches can be used for scuba diving (except for depths requiring a helium-oxygen mixture).
CAUTION!!! For all categories of watches, it is forbidden to:
- Press buttons underwater.
- Set the hands underwater.
- Unscrew the crown underwater.
Care for Your Watch
- The rubber gasket protecting the watch from water and dust should be replaced every 2-3 years.
- If moisture gets inside the watch, have it checked immediately by a CASIO dealer or distributor.
- Do not expose the watch to extremely high or low temperatures.
- While the watch is designed for normal use, avoid rough handling and dropping it.
- Do not fasten the strap too tightly. There should be space for a finger between your wrist and the strap.
- Clean the watch and strap using a dry soft cloth, or a soft cloth dampened with an aqueous solution of mild neutral detergent. Never use volatile agents (such as gasoline, solvents, aerosol cleaners, etc.).
- When not in use, store the watch in a dry place.
- Avoid exposure to 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 straps have silk-screened designs. Be careful when cleaning such straps to avoid damaging the designs.
For Resin 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 the resin strap to sweat or moisture, or storing it in high humidity conditions, can lead to damage, tearing, or cracking of the strap. To ensure a long service life for the resin strap, wipe it clean of dirt and water with a soft cloth as often as possible.
For 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, wipe it off as soon as possible.
- Prolonged contact with a wet surface may cause the fluorescent color to fade. Ensure that there is no moisture on the 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.
Calibration Signal
- This watch receives a calibration signal and updates the time accordingly.
- Signal broadcast centers are located in Germany (25 km from Frankfurt) and in Antorn, England. The signal covers a radius of 1500 km. The signal may be weak at distances over 500 km.
- The broadcast signal is also dependent on weather conditions, atmospheric pressure, and temperature. Signal reception may also be affected by the following factors:
- Being near a TV, computer, or household appliances.
- Being in a subway or tunnel.
- Being near airports, train stations, or high-speed roads.
- Being near radio stations or signal transmission stations.
- Electrostatic charge.
There are two types of calibration signal reception. When auto-calibration is enabled, the watch automatically receives the signal six times each day and corrects the time. For manual calibration, you press a button to receive the signal:
Manual Calibration
- Position your watch horizontally.
- In the Current Time Mode, press and hold button [D] for two seconds until the [RC] indicator sounds.
- Release button [D]. The [RC] indicator will flash, indicating that the watch is ready to receive the calibration signal. The second hand will move to the 12 o'clock position and stop.
- The signal reception process takes 2 to 7 minutes. Sometimes it may take up to 14 minutes. Do not move your watch during the reception process.
- After the reception process, if it was successful, the last reception data will appear on the display.
- To stop the reception process and return to the Current Time Mode, press button [D].
- If the signal reception was unsuccessful, the watch will display "ERR" and then automatically return to the Current Time Mode. You can also return to the Current Time Mode by pressing button [D].
Auto-Calibration Signal
When auto-calibration is enabled, the watch automatically receives the signal six times (during the night or early morning). Auto-calibration only occurs when the watch is in the Current Time Mode.
General Description of Operating Modes
The illustration shows the watch in the Current Time Mode.
Pressing button [C] sequentially cycles through the modes in the following order: Current Time Mode ➔ Battery Power Indicator Mode ➔ World Time Mode ➔ Alarm Mode ➔ Stopwatch Mode ➔ Analog Time Mode ➔ Current Time Mode.
To turn on the backlight in any mode, press button [B].
Diagram Description: The watch face displays the time with hour, minute, and second hands. Buttons are labeled A, B, C, and D. Button A is typically for mode selection or confirmation. Button B is for backlight. Button C is for cycling through settings or modes. Button D is often for adjustment or starting/stopping functions.
Current Time Mode
In the Current Time Mode, press button [A] to switch between the signal indicator/seconds display and the current time, date/day of the week display.
Calibration
This watch automatically corrects the time based on the calibration signal. However, you can also set the time manually.
Before using the watch, set the city code for your current location.
Setting Your Current Location City
- In the Current Time Mode, press and hold button [A] until the city code indicator flashes, indicating the start of settings.
- Use buttons [D] and [B] to select your current location's city.
- After completing the settings, press button [A] eight times.
Viewing Last Signal Reception Data
In the Current Time Mode, press button [D] to view the last signal reception data (date and time).
To return to the Current Time Mode, press button [D] again.
Enabling/Disabling Auto-Calibration Signal
- In the Current Time Mode, press button [D] to view the last signal reception data.
- Press and hold button [A] until the "ON/OFF" indicators appear.
- Press button [D] to turn the auto-calibration signal ON (indicator "ON") or OFF ("OFF").
- Press button [A] to confirm the settings.
Signal Reception Indicator
This indicator shows the signal reception strength. The indicator is fully displayed when the watch is positioned for optimal signal reception. Try to position the watch for good reception whenever possible. It takes about 10 seconds for the watch to stabilize the signal reception frequency displayed on the indicator.
World Time Mode
In this mode, you can view the local time of any of the 30 cities worldwide (29 time zones). World Time settings are automatically synchronized with the current time settings.
Enabling/Disabling Daylight Saving Time (DST)
- In World Time Mode, select the city code for which you want to enable or disable Daylight Saving Time using button [D].
- Press and hold button [A] to enable or disable DST.
Viewing Time in Another Time Zone
In World Time Mode, press button [D] to select the city whose time you want to view.
Analog Time Mode
The analog time in this watch is synchronized with the current time. Therefore, it is not necessary to set it manually.
However, if for any reason the analog time does not match the current time, follow these steps:
- In Analog Time Mode, press and hold button [A] until "– 00 –" appears, indicating the start of settings.
- Use buttons [D] and [B] to set the current time.
Pressing button [D] advances the time by 10 seconds, and pressing button [D] again decreases it by 10 seconds. Pressing button [B] while holding button [D] allows for faster time adjustment. To stop the fast adjustment, press any button.
- Press button [A] to confirm the settings.
Stopwatch Mode
The Stopwatch Mode allows you to measure individual time intervals, split times, and two-way finish times. The measurable range for total elapsed time is 99 minutes and 59.99 seconds.
Measuring Individual Time Intervals
[D] (Start) – [D] (Stop) – [D] (Repeat Start) – [D] (Stop) – [A] (Reset)
Measuring Split Times
[D] (Start) – [A] (Split Time) (The display shows "SPL") – [A] (Continue) – [D] (Stop) – [A] (Reset)
Two-Way Finish
[D] (Start) – [A] (Split: First Finish) – [D] (Second Finish. The display shows the result of the 1st finish) – [A] (Cancel Split. The display shows the result of the 2nd finish) – [A] (Reset)
Current Time Mode Settings
- In the Current Time Mode, press and hold button [A] until the city code indicator flashes, indicating the start of settings.
- Press button [C] to cycle through the settings: City Code ➔ DST Mode ➔ 12/24 Hour Time Format ➔ Seconds ➔ Hours ➔ Minutes ➔ Year ➔ Month ➔ Day ➔ Power Saving Mode ➔ City Code.
- If you select seconds (the seconds display flashes), press button [D] to reset the seconds to 00. If you press button [D] when the seconds are between 30 and 59, the seconds will reset to 00 and the minutes will increment by one. If the seconds are between 00 and 29, the minutes will not change.
- Use button [D] to increase and button [B] to decrease the selected value for minutes, hours, etc.
- The day of the week is automatically set according to the date.
- The date can be set from January 1, 2000, to December 31, 2099.
- To switch between 12-hour and 24-hour time formats, press button [D].
- When the 12-hour format is selected, the "P" indicator shows PM (afternoon).
- Use buttons [D] and [B] to select your current location's city code.
- When setting Daylight Saving Time, press button [D] to cycle through the modes: Auto-setting ("A") ➔ Daylight Saving Time OFF ("OF") ➔ Daylight Saving Time ON ("ON").
- To enable ("ON") or disable ("OFF") the Power Saving Mode, press button [D].
- Press button [A] to confirm the settings.
Backlight
- Press button [B] in any mode to turn on the backlight.
- The backlight of these watches uses LED panels, whose brightness decreases with continuous use.
- The watch emits an audible beep during illumination. This is caused by the backlight elements vibrating 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 will shorten the battery life.
Power Supply
This watch is equipped with a solar cell and a rechargeable battery powered by the solar cell. If your watch is kept away from light for extended periods, the rechargeable battery's charge will decrease.
To check the battery level, press button [C].
Power Level Indicator
| Level | Indicator | Functions |
| 1 | HI | Battery charge is sufficient for normal watch operation. |
| 2 | MID | Battery charge is sufficient for normal watch operation. |
| 3 | LO | Alarm sound, backlight, electronic display, and calibration reception do not work. |
| 4 | C | The power supply is completely depleted, but current timekeeping continues. |
| 5 | - | The power supply is completely depleted. |
If there is no indicator on the display, the battery is completely depleted. Place your watch in a well-lit area.
Be careful not to expose your watch to direct sunlight for extended periods, as this may cause operational problems.
Charging the Power Supply
After a full charge, normal operation continues for 6 months under the following conditions:
- 6 minutes of calibration per day
- 1.5 seconds of backlight use per day
- 10 seconds of alarm use per day
- 18 hours of standby, 6 hours (per day) in sleep mode.
By exposing the watch to sunlight every day, you ensure continuous battery charging:
| Light Intensity | Approximate Exposure Time |
| Direct Sunlight (50,000 lux) | 6 minutes |
| Sunlight through a window (10,000 lux) | 27 minutes |
| Daylight in cloudy weather (5,000 lux) | 43 minutes |
| Fluorescent Light (500 lux) | 8 hours |
The following table shows the time required to charge the power supply:
| Light Intensity | Level 5 | Level 4 | Level 3 | Level 2 | Level 1 |
| Direct Sunlight | 2 hours | 36 hours | 10 hours | - | - |
| Sunlight through a window | 6 hours | 140 hours | 38 hours | - | - |
| Daylight in cloudy weather | 9 hours | 220 hours | 61 hours | - | - |
| Fluorescent Light | 100 hours | - | - | - | - |
Power Saving Mode
Sleep mode helps conserve battery power when the watch is kept in darkness.
Enabling/Disabling Power Saving Mode
- In the Current Time Mode, press and hold button [A] until the city code indicator flashes.
- Press button [C] nine times to advance to the Power Saving Mode.
- Press button [D] to enable ("ON") or disable ("OFF") the Power Saving Mode.
- Press button [A] to confirm the settings.
When the mode is enabled, the display shows the "PS" indicator. Your watch may also automatically enter sleep mode. To return the watch to normal operation, place it in a well-lit area or press any button.
The following table shows the availability of watch functions when in sleep mode:
| Duration in Sleep Mode | Functions |
| 3 - 4 days |
|
| 8 days and more |
|
Your watch automatically enters sleep mode. To return the watch to normal operation, place it in a well-lit area or press any button.
Technical Specifications
| Feature | Specification |
| Accuracy at Normal Temperature | ±15 seconds per month |
| Current Time Mode | Hour, minute, second, AM/PM indicator, year, month, day, day of the week. |
| Calendar System | Auto calendar from 2000 to 2099. |
| Other | 12/24 hour format, DST (Daylight Saving Time). |
| Calibration Signal | Calibration signal (6 times daily), manual calibration, selection of broadcast center. |
| World Time Mode | Current time in 30 cities (29 time zones). |
| Alarm Mode | 3 daily alarms, hourly chime. |
| Stopwatch Mode | Maximum measurement range: 99 minutes 59.99 seconds. |
Product Information
- Name: Electronic / Electro-mechanical Wristwatch (Men's/Women's)
- Brand: CASIO
- Manufacturer: CASIO COMPUTER Co.,Ltd. (CASIO Computer Co., Limited)
- Manufacturer Address: 6-2, Hon-machi 1-chome, Shibuya-ku, Tokyo 151-8543, Japan
- Importer: OOO "Casio", 127055, Moscow, Suchevskaya St., bldg. 27, str. 1, Russia
- Country of Origin: Japan
- Warranty Period: 1 year
- Address for Authorized Organization to Receive Claims: Specified in the warranty card.
- Product Compliance: Complies with GOST 26270-98 (cl. 4.35). Certificate of Conformity No. RUSS JP. АЯ46.Д42228 / RUSS JP. АЯ46.Д42071 / RUSS JP. АЯ46.Д42230.
