Features: Stainless Steel Case Rubber Strap Automatic Movement Caliber: F6922 22 Jewels Sapphire Crystal Black Dial Analog Display Luminous Hands And Markers Day And Date Display Uni-Directional Rotating Bezel Screw Down Crown Solid Case Back Buckle Clasp 200M Water Resistance Approximate Case Diameter: 40mm Approximate Case Thickness: 13mm Alternate Model Numbers: RA-AA0005B, RA-AA0005B19B, RA-AA0005B39B