Model : Brushed/Satin Stainless Steel Casework, Black Dial, Steel Roman Markers on Leather Strap with Single Fold Insignia Deployant ClaspMovement: Nickle Plated Asian 2824 Automatic movement, 25J , 28800bph, Insignia Preforated Rotor with Omega 8500 Calibre Wording Functions: Hours, Minutes, Seconds, Date ( Set at Crown) Dimensions : Dia 41mm x 12.5mm Thk Material : 1 piece forged case construction, solid 316 stainless steel Back : Display Caseback with Detailed Serial Engraving/Insignia at Case Rim Crown : One-piece Screw Down crown with o ring Crystal: Sapphire Crystal, AR Coated Water-resistant