Hublot is the undisputed king of sapphire cased watches, and for several reasons. First of all, they can create sapphire in different colors, like blue and yellow. Creating sapphire cases, in general, is still not an easy task. The few brands that offer sapphire cased watches usually only make about two dozen of them or so in a limited edition. However, this type of watches is probably the only one where being able to produce them in 'volume' is more difficult than making just a few. Hublot also doesn't do that with just a single watch but offers an entire collection of sapphire cased watches, of which all have shapes that are complex to make. This also goes for the Big Bang Unico Magic Sapphire, which offers the clear advantage of sapphire, to Hublot's signature watch.