The Casio Wave Ceptor WVA-M640D-1A2JF is a solar-powered radio-controlled watch with a round case and a digital and analog display. Its Multi Band 6 technology receives time signals from 6 standard radio stations around the world, covering Japan, North America, Europe and China.
The watch uses Tough Solar, a solar charging system. To save energy in dark conditions, the display turns off and the hands stop. The stainless steel band has a push and release mechanism that makes it easy to adjust.
It has a full auto calendar, a stopwatch, a timer and an LED light with afterglow. The display can switch between 3 patterns, and the day can be shown in 5 languages.
- Dial
- Digital and analog, black tone
- Movement
- Solar powered (Tough Solar)
- Radio reception
- Multi Band 6 (Japan, North America, Europe, China regions)
- Case shape
- Round
- Case size
- 43.5 mm; 52.0 × 43.5 × 12.3 mm
- Band material
- Stainless steel
- Band color
- Silver tone
- Band length
- 150-205 mm
- Weight
- 91 g
- Water resistance
- 10 ATM
- Calendar
- Full auto calendar
- Stopwatch
- 1/100 sec, 60 min
- Timer
- Set unit 1 min, max set 100 min, measured in 1-sec increments
- Display modes
- 3 patterns: date/day, second, time
- Day languages
- Japanese, English, German, Spanish, Chinese
- Time format
- 12/24-hour display switch
- Light
- LED light with afterglow function
- Other features
- UTC, battery indicator, power saving function, operation sound on/off switch