DETAILS : Calibre No.:E111 Maximum run time from full charge (Normal Use Condition) :Approximately 6 months Movement:Eco-Drive Signal Reception :Without Radio Reception Function Strap :Stainless Steel Water Resistant:Water Resistant to 10 bar Thickness:9.3mm Case Size:41.5mm 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 Time Setting Warning