This is an authentic HUBLOT Titanium Rubber 49mm Big Bang Limited Edition 2018 World Cup "Referee" Watch 400.NX.1100.RX. The watch is crafted of titanium and features a black rubber strap with a sapphire crystal and quartz movement. Follow this item for alerts. Hublot is a registered trademark of Hublot. FASHIONPHILE is not affiliated with Hublot.