This Sporty watch has an Eco-drive technology (Recharged by any light source; never needs a battery) - The watch has a Calendar function: Date Solar Powered Stop Watch24-hour Display Luminous Numbers Luminous Hands High quality 21 cm length and 21 mm width Silver Stainless steel strap with a Fold over with push button clasp Case diameter: 42 mmcase thickness: 12 mm case colour: Silver and dial colour: Blue Water resistant: 10 bars -Weight: 102 g The watch is delivered in an original gift box and has a warranty of 2 years