Stainless Steel case with Silver-tone stainless steel bracelet. Stainless steel bezel with Analog Black, etched outer, matte inner. Quartz movement with Mineral Glass with sapphire coating crystal and Push/pull crown. Screw-down case back. 51 mm Case Diameter. 13 mm Case Thickness with 9 inches band length and 24 mm band width. Fold-over clasp Clasp. Water Resistant: 3 ATM/30 meters/99 feet Function: Hour, Minute, Second Akribos XXIV Black Matte Mens Watch AK671SSB