Model : Polished Stainless Steel Casework, Black Dial, Black Subdials, 2-24 Numeral Hour Markers, Red Accent Needles on Leather Strap Insignia Single fold Deployant Clasp, Bi-directional Bezel Movement: Japanese OS 20 Quartz Chronograph Movement Functions: Hours, Minutes, Seconds : Running Secs at 6.00 subdial, 24 Hour indicator at 3.00 subdial, Chronograph : 9.00 subdial - minute counter 2.00 pusher - start/stop chrono, 4.00 pusher - reset Dimensions : Dia 45mm x 15.5mm Thk Material : 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: Synthetic Sapphire Water-resistant