Parameters Dial window material type: Acrylic Bezel Material: Plastic Case diameter: 35 millimetres Case Thickness: 10mm Band Material: TPU Bandwidth: 14-18 millimetres Back cover material: Stainless Steel Band Length: 220mm Wrist Circumference: 120mm-185mm (all values are measured by hand, allowable error exists, if you have any questions, please contact us before placing an order, welcome to place an inquiry) This timepiece features a black/white plastic case and fixed bezel, a digital display and a matching balck/blue/pink/white/yellow TPU strap. Its functions include 12/24H, a day and date feature, an alarm, an hourly alarm, an LCD screen, an EL backlight, 24-hour chronograph with 1/100-second resolution and water resistance to 30m.