Shock Resistant 200M Water Resistant Mud Resistant Case & buttons are sealed to prevent mud, dirt and dust from getting into the watch Auto LED Light with Afterglow World Time 29 time zones (48 cities), city code display, daylight saving on/off 4 Daily Alarms & 1 Snooze Alarm Countdown Timer Measuring unit: 1 second Countdown range: 1 minute to 24 hours Auto repeat Function, Progress Beeper 1/100 Second Stopwatch (ST1) Measuring capacity: 999:59'59.99' Measuring modes: Elapsed time, split time, 1st 2nd place times Auto Start Function Hourly Time Signal Auto Calendar (Pre programmed until the year 2099) 12/24 Hour Formats Accuracy: +/ 15 seconds per month Battery CR2025 Approx. battery life: 3 years Module 3031 1 year Casio warranty Watchco.com is an authorized Casio dealer Free US shipping