YouYouPifa Unisex's Synthetic Leather Strap Quartz Round Fashion Watches (Black Strap / White Dial) 100% Brand New Case Diameter: 41 mm Inch, Case Thickness: 8 mm / 0.31 Inch, Case Width: 20 mm / 0.79 Inch, Band Length: 20 cm Movement: Quartz Daily Water Resistant please don't put it in Water