2013 GMT !!! Supreme Version !!! This is made with Reference to the Genuine SS GMT Watch...External Dimension is 1-1 as per the Genuine.... Blue Superlume....All external Parts are interchangeable with Genuine....New Alpha Numeric Serials... AR Coated Cyclob, Genuine Bi Colour (Black-Blue) Ceramic Bezel !!!!! Updated to Internally Feint Etched Coronet at 6.00 on Crystal as per Genuine !!!Model : Unveil in Basel 2013......Polished Stainless Steel 316F New Oversize Case, Black dial, Blue Superlume Dot Markers and Needles, Brushed New Style Oyster Style Stainless Steel Bracelet,Genuine Ceramic Sandwich Bi-Colour Black/Blue Numeral Bezel, 24 Clicks Uni -directional . Engraved ROLEXROLEX on rehaut with Alpha Numeric Serial Numbers at 6.00, Correct New Rolesor Clasp Osyter / Diver extension with Serial number inscribed on end links .Movement:Nickle Plated Swiss Eta 2836-2 Modified to Rolex Calibre 3187 Markings and Bridges, Automatic Movement, 25J, 28800bph, GMT Independently AdjustableFunctions: Hours, Minutes, Seconds, and Date and GMT ( Set via Crown) Dimensions : Dia 40.5mm x 13mm Thk Material : 1 piece forged case construction, solid 316F stainless steel Back : Solid case back Crown : One-piece screw down crown with o ring Crystal: Sapphire crystal, With AR Cyclob Same Thickness and Height about Bezel as per the Genuine. Internally Feint Etched Coronet at 6.00 on Crystal as per Genuine !!! Water Resistant