Casio WVA-210/220/230 Watch User Manual
Module 4378 4379
Important Information
Battery
If the display becomes dim or the backlight does not function, the battery needs replacement. Contact a CASIO dealer or distributor. The battery included with your watch is for initial testing purposes and may have a shorter lifespan than a standard battery.
Water Resistance
Watches are classified by water resistance levels (I to V). Refer to the table below to determine usage rules.
| Marking on Case | Splash, Rain, Washing | Swimming, Snorkeling | Scuba Diving |
|---|---|---|---|
| I | No | No | No |
| II | Yes | No | No |
| III (50M WATER RESISTANT) | Yes | Yes | No |
| IV (100M WATER RESISTANT) | Yes | Yes | Yes |
| V (200M WATER RESISTANT / 300M WATER RESISTANT) | Yes | Yes | Yes |
Notes for respective sections:
- Level I: The watch is not water-resistant. Avoid any contact with moisture.
- Level III: If exposed to salt water, rinse thoroughly and dry.
- Level IV: If exposed to salt water, rinse thoroughly and dry.
- Level V: Can be used for scuba diving (except for depths requiring helium-oxygen mixtures).
ATTENTION!!! For all watch categories, do not:
- Press buttons underwater.
- Change time settings underwater.
- Unscrew the crown underwater.
Care of Your Watch
- Replace the rubber gasket protecting the watch from water and dust every 2-3 years.
- If moisture enters the watch, have it checked immediately by a CASIO dealer or distributor.
- Do not expose the watch to extremely high or low temperatures.
- While designed for normal use, avoid rough handling and dropping the watch.
- Do not fasten the strap too tightly; a finger should fit between your wrist and the strap.
- Clean the watch and strap with a dry, soft cloth or a soft cloth dampened with a mild neutral detergent solution. Never use volatile substances like gasoline, thinners, 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 with these materials can damage gaskets, the case, and the watch's finish.
- Some models have 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 whitish powder on the strap. This is harmless and can be removed by wiping with a soft cloth.
Exposure of the polymer strap to sweat or moisture, or storage in high humidity conditions, can lead to damage, tearing, or cracking. To ensure a long service life, wipe the strap frequently with a soft cloth to remove dirt and moisture.
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 also cause the fluorescent color to fade. If any moisture gets on the watch surface, wipe it off as soon as possible. Prolonged contact with a damp surface can cause discoloration of the fluorescent coating. Ensure the fluorescent surface is dry and avoid contact with other surfaces. Strong friction of the fluorescent paint surface against another surface may transfer the fluorescent paint to that surface.
General Description of Operating Modes
The illustration shows the watch in the Current Time Mode.
Pressing button [C] sequentially cycles through the modes: Current Time Mode → World Time Mode → Alarm Mode → Stopwatch Mode → Analog Time Mode → Current Time Mode.
Press button [B] in any mode to turn on the backlight.
Calibration
These watches automatically calibrate time based on calibration signals. You can also set the time manually. Before use, set your current location city.
In Current Time Mode, press button [D] to switch between the current time display and the time of the last signal reception.
Setting Your Current Location City
- In Current Time Mode, press and hold button [A] until the city code flashes, indicating the start of setting mode.
- Use buttons [B] and [D] to change your current location city code.
- Press button [A] twice to confirm the settings.
World Time Mode
In this mode, you can view the current time in any of 30 cities worldwide (29 time zones). World Time values are automatically updated according to the current time.
Enabling/Disabling Daylight Saving Time (DST)
- In World Time Mode, select the city for which you want to enable or disable DST using button [D].
- Press and hold button [A] to enable or disable Daylight Saving Time (DST).
Viewing Time in Other Time Zones
In World Time Mode, press button [D] to select the city whose time you want to view.
City Code Table (Sample)
| City Code | City | Difference from Greenwich (GMT) | Other Major Cities in This Time Zone |
|---|---|---|---|
| HNL | Honolulu | -10.00 | Pago Pago, Honolulu, Papeete |
| ANC | Anchorage | -09.00 | Anchorage, Nome |
| LAX | Los Angeles | -08.00 | Los Angeles, San Francisco, Las Vegas, Seattle, Dawson City |
| DEN | Denver | -07.00 | Denver, El Paso |
| CHI | Chicago | -06.00 | Chicago, Houston, Dallas, New Orleans |
| NYC | New York | -05.00 | New York, Montreal, Detroit, Boston, Panama City, Havana, Lima, Bogota |
| CCS | Caracas | -04.00 | Caracas, Santiago |
| RIO | Rio de Janeiro | -03.00 | Sao Paulo, Buenos Aires, Brasilia, Montevideo |
| GMT | London | +00.00 | London, Dublin, Lisbon, Casablanca, Dakar, Abidjan |
| BCN | Barcelona | +01.00 | Barcelona, Madrid, Paris, Amsterdam, Algiers, Hamburg, Frankfurt, Vienna |
| BER | Berlin | +01.00 | Berlin |
| ATH | Athens | +02.00 | Athens, Helsinki, Istanbul |
| CAI | Cairo | +02.00 | Cairo |
| JRS | Jerusalem | +02.00 | Jerusalem, Beirut, Damascus, Cape Town |
| JED | Jeddah | +03.00 | Jeddah, Kuwait, Riyadh, Aden, Addis Ababa, Nairobi |
| THR | Tehran | +03.05 | Tehran, Shiraz |
| DXB | Dubai | +04.00 | Dubai, Abu Dhabi, Muscat |
| KBL | Kabul | +04.05 | Kabul |
| KHI | Karachi | +05.00 | Karachi, Male |
| DEL | Delhi | +05.50 | Delhi, Mumbai, Kolkata |
| DAC | Dhaka | +06.00 | Dhaka, Colombo |
| RGN | Yangon | +06.50 | Yangon |
| BKK | Bangkok | +07.00 | Bangkok, Jakarta, Hanoi, Vientiane |
| HKG | Hong Kong | +08.00 | Hong Kong, Singapore, Kuala Lumpur, Beijing, Manila, Perth, Ulaanbaatar |
| SEL | Seoul | +09.00 | Seoul |
| TYO | Tokyo | +09.00 | Tokyo, Pyongyang |
| ADL | Adelaide | +09.05 | Adelaide, Darwin |
| GUM | Guam | +10.00 | Guam |
| SYD | Sydney | +10.00 | Sydney, Melbourne, Raboul |
| NOU | Noumea | +11.00 | Noumea, Vila |
| WLG | Wellington | +12.00 | Wellington, Nadi, Naura, Christchurch |
Note: The full table contains time zone information for 30 cities. This is a sample.
Alarm Mode
You can set various daily alarms. When the set time arrives, the alarm will sound for 10 seconds. If the hourly chime is enabled, a short beep will sound at the start of each hour.
Setting an Alarm
- In Alarm Mode, press button [D] to select the alarm type: AL1 → AL2 → AL3 → SNZ (Snooze).
- After selecting the alarm type, press and hold button [A]. The hour digits will flash, indicating they are selected for setting. The alarm is automatically enabled at this point.
- Press button [C] to cycle through the digits: Hours → Minutes → Hours.
- Press button [D] to increase and button [B] to decrease the selected value. Holding the button down allows for faster adjustment.
- The 12/24-hour format matches your current time setting. When using the 12-hour format, be careful to set AM/PM correctly.
- Press button [A] to return to Alarm Mode after setting.
Checking Alarm Sound
In Alarm Mode, press button [D] to test the alarm sound.
Enabling/Disabling Alarm Signal
- In Alarm Mode, press button [D] to select the alarm type.
- After selecting the alarm type, press button [A] to enable/disable the selected alarm.
- An "AL" indicator appears on the display when any of the 4 alarms are selected.
- An "SIG" indicator appears on the display when the hourly chime is selected.
Stopwatch Mode
The Stopwatch Mode allows you to measure elapsed time, lap times, and split times. The total elapsed time measurement range is 99 minutes, 59.99 seconds.
Measurement Range
99 minutes, 59.99 seconds.
Measurement Modes
- a) Measuring Split Times: [D] (Start) – [D] (Stop) – [D] (Restart) – [D] (Stop) – [A] (Reset)
- b) Measuring Time with Split Times: [D] (Start) – [A] (Split time display, "SPL" indicator appears) – [A] (Resume) – [D] (Stop) – [A] (Reset)
- c) Measuring Double Finish Times: [D] (Start) – [A] (Split. First finisher) – [D] (Second finisher. Display shows 1st finisher's time) – [A] (Cancel split. Display shows 2nd finisher's time) – [A] (Reset)
When stopped or at the end of measurement, the measured time (final or split) will periodically switch to display the 1/100-second measurement.
Current Time Mode
In Current Time Mode, press button [D] to switch between the current time display and the time of the last signal reception.
Press button [A] in Current Time Mode to cycle through displays: current time and day of the week, and current time/month/day/day of the week.
Setting Time and Date
- Press and hold button [A] in Current Time Mode until the city code flashes, indicating the start of setting mode.
- Press button [C] to cycle through the settings: City Code → DST → 12/24 Hour Format → Seconds → Hours → Minutes → Year → Month → Day.
- If seconds are flashing, press button [D] to reset seconds to 00. Pressing [D] when seconds are between 30-59 will reset seconds to 00 and increment minutes by 1. Pressing [D] when seconds are between 00-29 will not change the minutes.
- Use buttons [B] and [D] to adjust minutes and other values.
- Press button [D] to toggle between 12-hour and 24-hour formats. In 12-hour format, "P" indicates PM.
- Press button [A] to confirm settings and return to Current Time Mode.
Analog Time Mode
The analog time in this watch is synchronized with the current digital time. Therefore, it does not require separate setting.
However, if the analog time does not match the digital time for any reason, perform the following adjustments:
Adjusting Analog Time
- In Analog Time Mode, press and hold button [A].
- Use button [D] to adjust the current time. Pressing [D] advances the time by 10 seconds. Holding button [B] while pressing [D] allows for faster adjustment. Release any button to stop the fast adjustment.
- Press button [A] to confirm the settings.
Other
Calibration Signal
The watch receives calibration signals and updates its time accordingly. Signal transmission centers are located in Germany (approx. 25km from Frankfurt) and Rugby, England. The signal range is about 1500km. Signal strength may be weak beyond 500km. Signal reception is affected by natural conditions, atmospheric pressure, and temperature. Factors that can weaken the signal include:
- Being near TVs, computers, or household appliances.
- Being in a subway or tunnel.
- Being at an airport, train station, or on a highway.
- Being near radio transmitters or signal transmission stations.
- Electrostatic interference.
There are two types of calibration signal reception: Auto-Calibration and Manual Calibration.
Auto-Calibration Signal: When enabled, the watch automatically receives the signal six times daily (during the night and early morning) and corrects the time. Auto-calibration only occurs when the watch is in Current Time Mode. Reception lasts 2 to 6 minutes. Do not move the watch during reception.
You can return to Current Time Mode by pressing button [D]. If reception fails, "ERR" will appear for 1-2 minutes before the watch returns to Current Time Mode.
Enabling/Disabling Auto-Calibration Signal
- In Current Time Mode, press button [D] to display the time of the last signal reception.
- Press and hold button [A] until the transmission indicator appears, starting the setting mode.
- Use button [D] to toggle between "ON" and "OFF" for auto-calibration reception.
- Press button [A] to confirm settings.
Signal Reception Indicator
This indicator shows the strength of the reception signal. When the watch is positioned for optimal reception, the indicator will be fully displayed. Try to position the watch for good reception whenever possible. It takes about 10 seconds for the watch to stabilize the reception strength shown on the indicator. If the calibration indicator is not present, reception is not occurring. Perform manual calibration or check watch settings.
Technical Specifications
Accuracy: ±15 seconds per month under normal temperature conditions.
Current Time Mode: Hours, minutes, seconds, AM/PM indicator, year, month, day, day of the week.
Calendar System: Automatic calendar from January 1, 2000, to December 31, 2100.
Product Information
Product Name: Electronic / Electro-mechanical Quartz Wristwatch (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: CASIO Russia LLC, 27, build. 1, Sushchevskaya St., Moscow 127055, Russia
Country of Manufacture: Japan
Warranty Period: 1 year
Authorized Service Center Address: As specified in the warranty certificate.
Compliance: Product complies with GOST 26270-98 (clause 4.35). Certificate of Conformity No. РОСС RU.АЯ46.Д42228 / РОСС RU.АЯ46.Д42071 / РОСС RU.АЯ46.Д42230.
