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  • Band Type:  Resin
  • Color:  Silver/Black
  • Dial Code:  Analog/Digital

Technical Specs

  • Multi-Band Atomic Timekeeping (US, UK, Germany, Japan, China)
  • Receives time calibration radio signals which keep the displayed time accurate
  • Auto receive function (up to 6 times per day)
  • Manual receive function
    Signal: US WWVB, UK MSF, Germany DCF77, Japan JJY40/JJY60, China BPC
    Frequency: US 60kHz, UK 60kHz, Germany 77.5kHz, Japan 40/60kHz, BPC 68.5kHz
  • Tough Solar Power
  • 100M Water Resistant
  • LED Light with Afterglow
    Neo-brite luminous hands & markers
  • World Time
    29 times zones (29 cities + UTC), city code display, daylight saving on/off
  • 5 languages Day of Week display (Chinese, English, German, Japanese, Spanish)
  • 5 Daily Alarms
  • Hourly Time Signal
    1/100 second stopwatch
    Measuring capacity: 59'59.99"
    Measuring modes: Elapsed time, split time, 1st-2nd place times
    Countdown Timer
    Measuring unit: 1 second
    Countdown range: 60 minutes
  • Full Auto Calendar (pre-programmed until the year 2099)
    12/24 Hour Formats
  • Accuracy: +/- 15 seconds per month (with no signal calibration)
  • Storage Battery: Solar Rechargeable Battery
  • Battery Power Indicator
    Power Saving Function
    Approx. battery life: 4 months on full charge (without further exposure to light)
  • Module 5161

Size of case / total weight
WVAM640 52.0 x 43.5 x 12.3mm / 45.0g
WVAM640D 52.0 x 43.5 x 12.3mm / 91.0g