Special features: Illumination, alarm, timer, calendar, 12 hour indication, weekly display, monthly display Display type: Number Applicable population: Male Waterproof performance: 30M (lifetime waterproof, not suitable for bathing or swimming) Movement type: electronic Dial diameter: 5.5cm Mirror material: acrylic mirror surface Lock buckle material: stainless steel Watch strap material: silicone Size and weight Strap length: 22cm Strap width: 2cm Dial diameter: 5.5cm Dial thickness: 1.85cm Packaging weight: 60 grams The package includes: 1X watch (Waterproof for daily use) It can only splash a little water and cannot be cleaned or used during bathing, swimming, or diving.