Model : Polished Stainless Steel Case, Black Dial, Black Subdials , Orange Index on Black Nylon Strap/Orange Stitch with Insignia Single Fold Deployant Buckle, Movement: Japanese OS 20 Working Chronograph Quartz Movement Functions: Hours, Minutes, Secs at 6.00 Subdial, Date ( Set via crown), Chronograph, 24 Hour Indicator at 3.00 Subdial Dimensions : Width 47.5mm x 18mmThk Material : 1 piece Forged Solid 316 Stainless Steel Back : Solid Sports Rim Design case back with Insignia Crown : One-piece Screw down crown Crystal: Sapphire Crystal Water-resistant