Model : SS Case, Black Dial /Subdials, Diamond Markers on Leather strap with deployant clasp, Double Diamond Bezel , Diamond Crested EndlinksMovement: Asia 7750 Valjoux Working Chronograph movement 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 12.5mm Thk Material : 1 piece forged case construction, solid 316 stainless steel Back : Close case back with Hollogram Crown : One-piece Screw down crown with o ring Crystal: - Sapphire crystal with laser etched crown at 6.00 Water-resistant