Model : Polished 316F Stainless Steel Caseset, Smooth Bezel, Black Dial, Steel Dart Markers, High Quality Calf Leather with Stainless Steel Double Deployant Buckle Movement: Decorated Nickel Plated Asian 2813 Automatic Movement with Calender and Date Complications ,Insignia RotorFunctions: Hours, Minutes, Seconds, Date ( @6.00 Set via Crown), Sun-Moon Day Phase moving along with the time Dimensions : Dia 40mm x 13mm Thk Material : 1 piece forged case construction, solid 316F stainless steel Back : Display case back with Detail Serial Engraving on Case Rims Crown : One-piece screw down crown with o ring Crystal: Sapphire Crystal, AR coated,