SPECIFICATION: Movement Quartz ( Seiko ) VH31 Case Material 316L Stainless Steel Case diameter 35.0mm Case Length 41.0mm Case Thickness 11.4mm Case Finishing Brush finishing Case back Stainless steel, screw down Strap Material Nato Strap Strap Size 18 mm Glass Double domed / Acrylic Crystal Water Resistance 10 ATM
Movement: ( SEIKO / SⅡ VH31 ) Quartz Sweep Seconds Accuracy ± 15 seconds per month at normal temperature range Thickness: 3. 45 mm Jewels: 2 Battery life Approx. 2 years Country of Manufacture: Japan