Model : PVD Black Coated Brushed Stainless Steel Casework, Stainlesss Steel Bezel, Black Perforated dial, Steel Pushers, on Rubber strap with Insignia strap with Deployant Clasp Clasp Movement: Japanese OS 20 Working Chronograph Quartz Movement, Decorative Fixed Bridges and Wheels Over Quartz Movt Functions: Hours, Minutes, Seconds : Running Secs at 3.00 subdials Date at 6.00 : Adjustment via Crown Chronograph : 2.00 pusher - start/stop chrono, 4.00 pusher - reset Dimensions : Dia 44mm x 18.5mm Thk Material : 1 piece forged case construction, solid 316 stainless steel Back : Display case back With Engraving at Case Rims Crown : One-piece solid pullout crown with o ring Crystal: Sapphire crystal Water-resistant