18ct Rose gold Hublot Big Bang 301.PB.131.RX. Rose gold case with black ceramic bezel 44.5mm diameter water resistant to 100 meters. Automatic caliber HUB44 Chronograph movement, developed by La Joux-Perret, 252 pieces, column wheel control of chronograph functions, circular grained bottom plate, 42-hour power reserve. Black carbon dial, appliqué faceted indexes, sand blasted red gold luminescent hands. Black rubber strap with folding clasp. Box and papers dated September 2016.