Case thickness: 12 mm, Case size: 48 mm, Band width: 26 mm. Band material : Brown leather ,Strap Inner Circumference: 200 +/ 5MM,Clasp Type : Buckle. Glass Type: Mineral Crystal with Cream dial with gold tone stainless steel case. Water Resistant: 5 ATM. This watch automatically charges from the energy caused by your movement. If the battery is emptied, it only needs a few seconds of movement/energy to start working again.