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, White Dial, Rose Gold 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