Features: Stainless Steel Case Black Rubber Strap Black Dial Eco-Drive Movement Caliber B873 Date Calendar Display At 3 O'clock Position Unidirectional Rotating Stainless Steel Bezel Large Luminous Hands And Hour Markers Screwed Case Back Screw Down Crown Anti-Reflective Mineral Crystal 300M Water Resistance Alternate Model Numbers: BJ8051-05E Approximate Case Diameter: 48.00 mm Approximate Case Thickness: 18.60 mm