Model 116515.. Upgraded to more refined casework and Invisible Etched Crown on Crystal !!! Calibre 4130 Movement Bridges and Engravings as per Genuine !!! Model : 18k Rose Gold Plated Stainless Steel Case, Black Ceramic Tachymeter Bezel, Gold Dial, Black Subdials, New Blue SUperlume Markers and Needles, on Leather Strap with Single Fold Deployant Buckle Movement: Asia 7750 Valjoux Working Chronograph movement, 29J, 28800bph, Functional Regulator, Modded to Calibre 4130 Movement Bridges Functions: Hours, Minutes, Seconds : Running Secs at 6.00 subdials, Chronograph : 3.00 subdial - minute counter, 9.00 subdials, hour counter 2.00 pusher - start/stop chrono, 4.00 pusher - reset Dimensions : Dia 40mm x 14mm Thk Material : 1 piece forged case construction, solid 316 stainless steel, Thick 18K Rose Gold Plating .. 5mils Back : Solid Caseback Crown : One-piece Screw down crown with o ring Crystal: Sapphire crystal, Invisible Etched Crown Water-resistant