B640WC-5A

B640WC-5A

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  • LED:Amber LED:Amber
  • The colors may differ slightly from the original.

B640WC-5A

Stainless Steel Band
Stainless Steel Band
Stainless Steel Band
50-meter water resistance
50-meter water resistance
The "BAR" value indicates the number of atmospheres to which water resistance is ensured. 5 BAR means water resistance to 5 atmospheres. Watches marked "50m" have the same water resistance as 5 BAR watches.

Features

• 1/100-second stopwatch
• 50-meter water resistance
• Popular retro design
• LED Backlight

Specifications

    • Case / bezel material: Resin
    • Stainless Steel Band
    • Adjustable Clasp
    • Resin Glass
    • Partial ion plated
    • 50-meter water resistance
      • LED Backlight
      Afterglow
      • Flash alert
      Flashes with buzzer that sounds for alarms, hourly time signal
      • 1/100-second stopwatch
      Measuring capacity: 00'00"00~59'59"99 (for the first 60 minutes)
      1:00'00~23:59'59 (after 60 minutes)
      Measuring unit: 1/100 second (for the first 60 minutes)
      1 second (after 60 minutes)
      Measuring modes: Elapsed time, split time, 1st-2nd place times
      • Countdown timer
      Measuring unit: 1 second
      Countdown range: 24 hours
      Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
      Other: Auto-repeat
      • Multi-function alarm
      • Hourly time signal
      • Full auto-calendar (to year 2039)
      • 12/24-hour format
      • Regular timekeeping: Hour, minute, second, pm, month, date, day
      • Accuracy: ±30 seconds per month
      • Approx. battery life: 3 years on CR2016

Size of case / Total weight

  • Size of case : 38.9×35×9.4mm
  • Total weight : 49g

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