Feel the emotion at the heart of watchmaking with each wind of the Intra-Matic Chronograph H. Powered by our new, exclusive hand-wound chronograph movement the H-51 this is a timepiece with soul. A box-shaped sapphire crystal with double anti-reflective coating protects our signature panda dial, adding another layer of authentic heritage to this mechanical version of a vintage-inspired favorite. MANUAL WINDING Wind your mechanical watch by turning the crown clockwise. SUPER-LUMINOVA® Super-LumiNova is a type of luminescent material applied to hands, dials and bezels to make them visible in the dark. STAINLESS STEEL CASE A highly resistant alloy composed of steel and chromium. It can be worked to resemble a precious metal. It is nearly impervious to rust, tarnish, and corrosion. SAPPHIRE CRYSTAL Synthetic sapphire crystal is a tough scratch-resistant material, only diamonds could leave a mark. NIVACHRON™ BALANCE SPRING Nivachron™ is an alloy used to produce balance spring to resist magnetic fields and improve accuracy. It reduces the effects of magnets, temperature, and shocks. H-51 CALIBER A mechanical chronograph movement that celebrates the fundamental principles of watchmaking. Featuring an extended 60-hour power reserve. WATER RESISTANCE Your timepiece is resistant up to 10 bar (100m) / 145 psi (328 ft).