CASIO G-Shock GA-100 Series Analog-Digital 'Black Electro Green' GA-100BEG-1A

Structure：Impact resistance Waterproofing：200 meters waterproof Construction：Shock Resistant/Magnetic Resistant Strap material：Resin watch strap Battery Life：Approximate battery life 5 years with CR2016 Compatible watch strap sizes：145 to 215 mm