specification: Function introduction: luminous, alarm, WR30M, hourly hour, running seconds, day of the week, 12/24 hour system; Suitable for the crowd: students men Display type: number Dial shape: square Waterproof: WR30M Strap material: PU plastic Case material: ABS plastic Bottom cover material: stainless steel Mirror material: acrylic resin mirror Dial diameter: 52.8mm Case thickness: 14.9mm Strap width: 37.2mm Net weight: 58.2g package: 1watch 1Instruction Note: Do not use hot water for bathing, do not operate the watch underwater to avoid shortening its life