Model : Brushed Stainless Steel 316F, , Blue Dial, Lume Hour Markers and Needles, on Stainless Steel Link Bracelet with Insignia Double Deployant Clasp , Double Release Catch Movement: Japanese Quartz OS20 Working Chronograph movement Functions: Hours, Minutes, Secs (6.00 Subdial) Date : Chronograph : Minute counter (12.00 Subdial) 2.00 pusher - start/stop chrono, 4.00 pusher - reset Dimensions : Dia 42mm x 14mm Thk ...1-1 Dimension as per GenuineMaterial : 1 piece forged case construction, solid 316F stainless steel Back : Solid case back with Serial Engraving .. Crown : One-piece solid Screw Down crown with o ring Crystal: - Sapphire Crystal (Please Note Genuine watch does not have AR coating)Water-resistant