CASIO VINTAGE [B640WC-5ADF]

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

Dimensions & Build
Case Size: 38.9 × 35 × 9.4 mm
Weight: 49 g
Material: Resin
Band: Adjustable Clasp & Stainless Steel Band
Glass: Resin Glass
Surface treatment: Partial ion plated
Water Resistance: 50-meter water resistant

Power & Battery
Battery Life: Approx. 3 years on CR2016

Light
Light: LED backlight, Afterglow
Light color: Amber

Stopwatch
Stopwatch: 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 mode: Elapsed time, split time, 1st-2nd place times
Alarms: Hourly time signal, Multi-function alarm

Timer
Timer: 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

Flash Alert Feature
Flash alert: Flashes with buzzer that sounds for alarms, hourly time signal

Timekeeping & Accuracy
Time Format: 12/24-hour format
Regular Timekeeping: Hour, minute, second, pm, month, date, day
Accuracy: ±30 seconds per month
Calendar: Full auto-calendar (to year 2039)