The Big Bang Unico Sapphire is all about showing off what Hublot can do with sapphire. The 45 mm multipart case, bezel, and (of course) crystal are all sapphire and blend seamlessly together. It almost looks as if there’s no crystal over the dial because the rest of the case is already sapphire. The only components that aren’t sapphire are the combination titanium-and-sapphire crown and pushers, the titanium screws, the strap-release system, and the translucent silicone strap itself. It’s much lighter weight than you’d expect and is still waterproof to 100 meters.