Model : Brushed Stainless Steel Casework, Blue Dial, BlueSubdials with White trims, Bar/White numeral Markers, Superlume on Hour Indexes and Needles on Brushed Stainless steel bracelet with Deployant Clasp, Blue Bezel, Unidirectional rotating Bezel Serial Numbers (816880298) engraved Back of Lugs near 7.00 position Movement: Modified (Closer Subdials) Asia 7753 Valjoux Working Chronograph movement, Working regulator, 28800bphFunctions: Hours, Minutes, Seconds : Running Secs at 9.00 subdials, Date : Window at 4.30, set via 10.00 HE Valve ( Black Date Wheel) Chronograph : 3.00 subdial - minute counter, 6.00 subdials, hour counter 2.00 pusher - start/stop chrono, 4.00 pusher - reset Dimensions : Dia 45.5mm x 17.5mm Thk Correct 22mm LugsMaterial : 1 piece forged case construction, solid 316 stainless steel Back : Close case back with Detail Engraving Crown : One-piece Screw down crown with o ring Crystal : Sapphire crystal, Double Sided AR Coated Water-resistant