Patek Calatrava 5153G ....!! Officier Caseback , Same Mechanism as per Genuine !!!! Correct Date Size and Font !! Exact Casework Profile and Finishing as Per Genuine !!!, Calibre 324 SC Bridges on Movement !!Model : Polished 316F Stainless Steel Fine Engineered Caseset, 1-1 in Case profile and dimensions, Polish Smooth Bezel, Black Dial, , Steel Arrow Markers, Quality Calf Black or Walnut Brown Leatherstrap with Insignia BuckleMovement: Nickle Plated Japanese Miyota 9015 Automatic Movement,21J, 28800bph, Gold Insignia Rotor, Modified with Patek Calibre 324 SC BridgesFunctions: Hours, Minutes, Seconds, Date at 3.00, Correct Date Font as Per genuine ... Blue Dimensions : Dia 38mm x 9,5mm, 1-1 Dimensions as per the Genuine !!!!Material : 1 piece 316F Forge Stainless Steel Casework Back : Spring Open Officier Caseback over Display Caseback with Serial Engraving on Case rims... Crown : One-piece Screw down crown with o ring Crystal:Sapphire Crystal, Please note Genuine Watch does not have AR coating ...Water Resistant