DETAILS : Brand :CITIZEN Caliber No.:E011 Movement:Eco-Drive Signal Reception:Without Radio Reception Function Strap :Stainless steel Water Resistant:Water Resistant to 5 bar Case Size :27mm Case :Stainless Steel Glass :Sapphire Glass Warranty :3 years warranty Specification: Date Display Eco-Drive ( recharged by any light source, no need to change battery) Insufficient Charge Warning Function Overcharge Prevention Function