Product Feature: Features: week display, luminous light, alarm clock, hourly time signal, 30M life waterproof, running seconds, 12/24 hour system. Case material: high-quality ABS plastic case Strap material: plastic PU strap Mirror material: thickened and hardened acrylic resin mirror Bottom cover material: stainless steel Buckle material: stainless steel Suitable for the crowd: male Specification: Net weight: 58.2g Watch full length: 255mm Dial diameter: 52.8mm Case thickness: 14.9mm Strap width: 37.2mm