Casio WVA-420 Watch
Model Numbers: 3309, 3345
Key Features
- Radio Controlled Timekeeping (A/T, MSF, DCF)
- Multiple Alarms (AL1, AL2, AL3) and Hourly Signal (SIG)
- 1/100 Second Stopwatch
- Countdown Timer
- World Time Function
- LED Backlight
- Water Resistance up to 300 Meters (model dependent)
- Automatic Calendar (2000-2099)
- 12/24 Hour Format
- Daylight Saving Time (DST)
Water Resistance
The watch offers various levels of water resistance:
- 50M Water Resistant
- 100M Water Resistant
- 200M Water Resistant
- 300M Water Resistant
Note: Water resistance ratings indicate suitability for different depths and activities. Avoid operating buttons underwater.
Radio Controlled Timekeeping
The watch can automatically synchronize time with radio wave signals (A/T, MSF, DCF). The display indicates reception status (e.g., 'D' for successful reception, '-' for no reception). Manual reception can be initiated using button 'D'. Successful reception is indicated by 'D', while errors may show 'ERR'.
Timekeeping and Operations
The primary display shows time (hours, minutes, seconds) and date. The watch supports 12-hour format (with 'P' for PM) and 24-hour format, switchable via button 'D'. Daylight Saving Time (DST) can be enabled or disabled.
Different modes, such as World Time, Alarm, Stopwatch, and Timer, are accessed using buttons like 'C' and 'D'.
Alarms
The watch is equipped with three daily alarms (AL1, AL2, AL3) and an hourly time signal (SIG). Alarms can be turned ON or OFF using button 'D'. The alarm sound typically lasts 1.5 to 2.5 seconds.
Stopwatch
The stopwatch measures elapsed time with a resolution of 1/100th of a second, up to a maximum of 99 minutes and 59.99 seconds. It can be started, stopped, and reset using buttons 'D' and 'A'.
Timer
The countdown timer allows setting a specific duration. It counts down from the set time and can be configured for automatic repeat.
Specifications
| Feature | Details |
|---|---|
| Model Numbers | 3309, 3345 |
| Movement | Quartz (Radio Controlled) |
| Accuracy | +/- 15 seconds per month (without radio reception) |
| Battery | CTL1616 or equivalent |
| Calendar Range | 2000 - 2099 |
| Display Type | Digital with LED backlight |
| Water Resistance | Up to 300 Meters (model dependent) |
| Operating Temperature | -10°C to 60°C (14°F to 140°F) |
Maintenance and Care
To maintain the watch:
- Clean with a soft, damp cloth.
- Avoid extreme temperatures and strong magnetic fields.
- Ensure light exposure for rechargeable batteries.
- Consult authorized service centers for battery replacement or repairs.
