Model : Brushed SS, Tachymeter Bezel, Grey dial, Grey subdials on Brushed SS BraceletMovement: Japanese OS 20 Quartz Working Chronograph Movement Functions: Hours, Minutes, Seconds : Running Secs at 6.00 subdials, Date : @3.00 Adjustment via crown, Chronograph : 12.00 subdial - minute counter, 9.00 subdials, hour counter 2.00 pusher - start/stop chrono, 4.00 pusher - reset Dimensions : Dia 41.5mm x 14.5mm Thk Material : 1 piece forged case construction, solid 316 stainless steel Back : Close case back Crown : One-piece solid screw-down crown with o ring Crystal: Synthetic Spphire Water-resistant