New Authentic Hublot Big Bang Chronograph, 18kt Rose Gold case with Black Rubber strap and Push Button Foldover clasp on a Black dial. Equipped with scratch resistant Sapphire crystal. Case dimensions: 44mm diameter x 14.5mm thickness. Features 100 meters / 330 feet water resistance and comes with a 2 year WatchMaxx warranty. Also known by model reference 301PM1780RX.