Watch model: AD2030 Movement type: Japanese quartz movement Movement model: VH31 Case material: 316L solid stainless steel Table buckle material: 316L solid steel plate buckle Case process: wire drawing+polishing Bottom cover material: 316L stainless steel Bottom cover type: screw-in solid bottom cover Case diameter: 36mm (excluding crown) Case length: 46mm (total length of upper and lower parts) Case thickness: 12mm (including mirror and bottom cover) Case ear position: 19mm (at the connection between the case and the strap) Whole meter weight: 108 g (including steel strip) Watch length: 220mm (total watch length/circumference) Suitable for wrist: 13-18cm Watch strap material: solid stainless steel Mirror material: mineral glass Mirror type: Bubble mirror mineral glass Mirror coating: coated with anti dazzling blue film Mirror size: 31.5 * 3.5 * 2.5 (outer diameter * middle height * edge height) Crown type: screw-in screw lock bar Crown size: 6mm (diameter) Dial color: white, blue, brown Surface size: 30mm * 29mm * * 0.40mm (surface diameter * open surface * thickness) Pointer technology: Time division needle back silver Pointer illuminated: None Waterproof level: 100 meters waterproof/diving [capable of washing hands, swimming, diving, meeting all daily waterproof needs] Exhaust valve: None Packaging standard: professional waterproof plastic box packaging