Case / bezel material: Resin Neobrite Shock Resistant Mineral Glass 100-meter water resistance LED light Auto light switch, selectable illumination duration, afterglow Dual time 1/100-second stopwatch Measuring unit:lap time (1/100 second (for the first 60 minutes), 1 second (after 60 minutes))split time (1/100 second (for the first 10 hours), 1 second (after 10 hours)) Measuring modes: Elapsed time, lap/split times, 1st-2nd place times Memory capacity: 60 records (used for lap times and split 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) 3 multi-function alarms (with 1 snooze alarm) Full auto-calendar (to year 2099) 12/24-hour format Button operation tone on/off Regular timekeeping Analog: 2 hands (hour, minute (hand moves every 20 seconds)) Digital: Hour, minute, second, am/pm, month, date, day Accuracy: ±30 seconds per month