Hublot has created 500 Big Bang Unico Sapphire models that were cut from blocks of sapphire — the first time that the gemstone has ever been cut “on such a large scale”, according to the Swiss marque. After its ambitious MP05 LaFerrari Sapphire project, Hublot is asserting its expertise in sapphire-cutting with this collection of absolute transparency. The case middle, bezel and back of the Big Bang Unico Sapphire are cut out of sapphire, which is almost as hard and scratchresistant as diamond. Only a few pieces forming the spine of the watch are made from titanium. Its skeleton dial, made from transparent resin, reveals all the gears of the proprietary Unico HUB1242 movement and its finishes. The timepiece is water-resistant to 50m.