10-year battery life LED light Dual time 100-meter water resistance Resin Glass / Spherical Glass 100-meter water resistance Case / bezel material: Resin Resin Band LED backlight Afterglow Dual time 1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times Daily alarm Hourly time signal Auto-calendar (to year 2099) 12/24-hour format Regular timekeeping: Hour, minute, second, pm, month, date, day Accuracy: ±20 seconds per month Approx. battery life: 10 years on CR2016 Size of case: 44.1 X 43 X 11.6 mm total weight: 30.1 g Casio Youth Series watches are made keeping in mind the dynamic personality of today's youth. The Youth Series carry Digital watches for the young geeks, fashionable youths who carry a vibrant energy with them. This series also has great collection of Analog-Digital combination Casio Watches suitable for youth with multi tasking youth, as these watches can do and display more functionality and information easily. Show the energy with Casio's Youth Series Watches that combine Fashion and Technology. Featuring Youth series collection of Digital and Analog-Digital Combination watches which provides plenty of functionality with stylish designs to match your fashion and technology. Brand Casio SKU 101028114_NP-1021556772 Dial Size Other Watch Feature Alarm,Chronograph,Date,Luminous,Calendar Strap Material Resin Movement Quartz Watch Case Shape Tonneau Watch's water resistance 100m Model HDD-600C-2AVDF