Casio B640WD-1AV Classic Digital Chain Watch

Casio B640WD-1AV Classic Digital Chain Watch

• Case / bezel material: Resin
• Adjustable Clasp
• Stainless Steel Band
• Resin Glass
• 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 : 38.9×35×9.4mm
• Total weight : 49g