YouYouPifa Unisex's Stainless Steel Strap Quartz Round Fashion Watches (Gold Strap / Black Dial) 100% Brand New Case Diameter: 40 mm / 1.57 Inch, Case Thickness: 10 mm / 0.39 Inch, Case Width: 21 mm / 0.83 Inch, Band Length: 20 cm Movement: Quartz Daily Water Resistant please don't put it in Water