This high quality watch has an Eco-drive technology (Recharged by any light source; no need for ever a battery) - The watch has a Calendar function: Date, Solar Powered, Luminous Hands, Luminous Numbers High quality 21 cm length and 22 mm width Silver Titanium strap with a Fold over with push button clasp Case diameter: 40 mm,case thickness: 9 mm, case colour: Silver and dial colour: Grey Water resistant: 5 bars -Weight: 82 g