High Grade stainless steel casing with high quality SS Bracelet Triple safety folding clasp and push-piece opening mechanism. Fully Functional Chronograph subdials Fully Automatic watch mechanism with sweeping second hand movement Screw-in crown Sapphire crystal clear Case Skeleton back + Crystal Clear scratch-resistant watch glass All the appropriate Longines markings and wordings Detailed Longines logo, serial/model number engraved on the back Weight and feel very close to the original Excellent feel,traditional clasp with logo engravings & all correct laser markings.