With full 200m water resitance shock Resistance 24hr stopwatch and countdown timer. The standard issue G Shock never looked this good. Features: Mineral Crystal Glass 200M Water Resistant Shock Resistant Case / Bezel Material: Resin Band Material: Resin Auto LED Light with Afterglow Multi-function alarm Flash alert flashes with buzzer that sounds for alarms hourly time signal countdown timer and time up alarm Single time zone 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 Countdown timer: Measuring unit is 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) Auto-repeat alarm Full auto-calendar (to year 2039) Accuracy: +/-15 seconds per month Size: 48.5 x 43.0 x 14.7mm Weight: 59g Battery - approx 2 years Battery: CR2016 2 Year Warranty