Model : PVD Black Coated Sheen Finished Stainless Steel Case, Stainless Steel Rotating Diver Bezel, Blue Dial, Red Inner Bezel, Blue Subdials, Darkened Stick Markers on AntiDusk Rubber Strap with Insignia Buckle, 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 44.5mm x 15mm Thk Material : 1 piece forged case construction, solid 316 stainless steel, Thick PVD Black Coating Back : Close case back with Detail Engraving Crown : One-piece Screw down crown with o ring Crystal:Sapphire Crystal Water-resistant