A Genuine Watch was used for this Replication ProjectModel : Brushed SS Engineered Case with Conceal chronograph pushers and slot in strap design, Grey Dial, Black subdials, on Dust Repelling Black Rubber strap with Double Deployant clasp, Double release catch.Movement: Swiss Eta Working Chronograph Quartz Movement..Eta 251.262.. Same Specs as the GenuineFunctions:Same Functions as the Genuine Hours, Minutes, Seconds : Running Secs at 6.00 subdials Date : @4.30 ...Adjustment via crown, Chronograph : 2 Stops Split Time Functions, 1/10th accuracy 2.00 pusher - start/stop chrono, 4.00 pusher - reset Dimensions : Dia 44mm x 12mm Thk Material : 1 piece forged case construction, solid 316 stainless steel Back : Solid Case Back in Sports Rim Design with Detailed Serial Engraving Crown : One-piece solid screw-down crown with o ring Crystal: Sapphire crystal, AR Coated Water-resistant