This watch has an automatic watch movement ( recharged by any movement with your wrist; never needs a battery) -The watch has a calendar function: Date, Swiss Made High quality 21 cm length and 20 mm width Black Leather strap with a Buckle Case diameter: 40 mm,case thickness: 10 mm, case colour: Silver and dial colour: Silver Water resistant: 5 bars -Weight: 62 g The watch is delivered in an original gift box and has a warranty of 2 years