Specifications Case / bezel material: Resin Resin Band Shock Resistant Mineral Glass 200-meter water resistance Electro-luminescent backlight Selectable illumination duration (1.5 seconds or 3 seconds), afterglow World time 29 time zones (48 cities), daylight saving on/off 1/100-second stopwatch Measuring capacity: 59'59.99'' 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 minute to 24 hours (1-minute increments and 1-hour increments) 5 daily alarms (with 1 snooze alarm) Hourly time signal Full auto-calendar (to year 2099) 12/24-hour format Button operation tone on/off Regular timekeeping: Hour, minute, second, pm, date, day Accuracy: 15 seconds per month Approx. battery life: 5 years on CR2025 Close