The Hublot Big Bang Automatic 41mm watch model # 343.CG.6590.NR.1222 features: black ceramic case, black silk strap with a deployant clasp / buckle. It has a black dial, fixed bezel. The case size is 41mm.This automatic watch is powered by a the caliber HUB1110 is a 28800 VPH movement and has a power reserve of 42 hrs . The Hublot 343.CG.6590.NR.1222 uses a sapphire and has a water resistance of 100m.