Case / bezel material: Resin Resin Band 100-meter water resistance Approx. battery life: 10 years on CR2025 Resin Glass Dual time 1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring mode: Elapsed time, split time, 1st-2nd place times Others: Target time alarm, auto start Countdown timer Measuring unit: 1/10 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) Others: Auto-repeat, progress beeper on/off Daily alarm Hourly time signal LED backlight Afterglow LED:Amber Full auto-calendar (to year 2099) Accuracy: 30 seconds per month 12/24-hour format Regular timekeeping: Hour, minute, second, pm, month, date, day