SPECIFICATION: Movement Quartz ( Miyota ) FS20 Case Material 316L Stainless Steel Case diameter 32.0mm Case Length 38.0mm Case Thickness 12.0mm Case Finishing Brush & Polish finishing Case back Stainless steel, screw down Strap Material NYLON STRAP(Black) Strap Size 16 mm Glass Double domed / Acrylic Crystal Water Resistance 10 ATM