Features: Mens Canvas Watch Colour: Blue Red Water Resistant - splash proof only Micro Light Daily Alarm 1/100 second digital stopwatch Measuring capacity: 59'59.99" Measuring modes: Net time split time 1st-2nd place times Hourly Time Signal Auto Calendar Accuracy: +/-30 seconds per month Battery CR2016 Approx. battery life: 7 years Module 593Size & Fit Guide: 37.5 x 33.5 x 9.5mm One size fits most About Casio :For 25 years Casio G-Shock digital watches have been the ultimate tough watch. Providing durable waterproof digital watches for every activity. Shop Casio Online .