Brand New Authentic Hamilton Khaki Aviation Worldtimer Chrono Quartz Men's Watch Model H76714335. Stainless Steel case with Black Rubber strap. Tang clasp. Uni-Directional Rotating bezel. Black dial. Quartz Chronograph movement. Push In crown. Scratch Resistant Sapphire crystal. Case size: 45mm. 100 Meters - 330 Feet water resistant. 2 year WatchMaxx warranty.