Stainless Steel case with Silver-tone stainless steel bracelet. Stainless steel bezel with Analog Black, sunray dial. Quartz movement with Mineral with sapphire coating crystal and Push/pull crown. Screw-down case back. 52.5 mm Case Diameter. 14.5 mm Case Thickness with 8.5 inches band length and 28 mm band width. Fold-over Clasp With Double Push Button Clasp. Water Resistant: 5 ATM/50 meters/165 feet Function: Chronograph, Hour, Minute, Second Akribos XXIV Black Mens Watch AK661SSB