CASIO VINTAGE B640WB-1BVT

Basic Information Case size (L× W× H) 38.9 × 35 × 9.4 mm Weight 49 g Case and bezel material Resin Band Adjustable Clasp Stainless Steel Band Water resistance 50-meter water resistance Power supply and battery life Approx. battery life: 3 years on CR2016 Exterior Glass Resin Glass Surface treatment Black ion plated band Black IP Watch Features 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 modes: Elapsed time, split time, 1st-2nd place times 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 Alarm/hourly time signal Hourly time signal Multi-function alarm Flash alert feature Flash alert Flashes with buzzer that sounds for alarms, hourly time signal Light LED backlight Afterglow Light color LED:Amber Calendar Full auto-calendar (to year 2039) Accuracy Accuracy: ±30 seconds per month Other features 12/24-hour format Regular timekeeping: Hour, minute, second, pm, month, date, day Exterior Glass Resin Glass Surface treatment Black ion plated band Black IP