Hublot 18ct Red Gold Limited The Hublot Big Bang UNICO Automatic 45mm watch model # 415.OX.1118.VR.MXM17 features: 18kt king gold case, black leather strap with a deployant clasp / buckle. It has a black dial, fixed bezel. The case size is 45mm.This automatic watch is powered by a the caliber UNICO HUB1213 is a 28800 VPH movement and has a power reserve of 72 hrs . The Hublot 415.OX.1118.VR.MXM17 uses a sapphire and has a water resistance of 100m. 18kt King Gold CASE NOTES: Engraved Design by Maxime Buchi DIMENSIONS: 45mm Engraved Design by Maxime Buchi THICKNESS: 15.55mm CASE BACK: Transparent CRYSTAL: Sapphire BEZEL: Fixed "19kt King Gold, Hexagonal Décor Designed by Maxime Buchi"