Swiss watchmaker Hublot revealed a cutting-edge skeleton watch, the Big Bang Unico Sapphire, cut straight from blocks of sapphire crystal and entirely see-through. Second only to diamonds in hardness, sapphire is nearly as scratch-resistant and equally as elegant. Developed and manufactured in-house, this 45mm-diameter, automatic flyback chronograph is primarily hand-assembled from over 300 individual components…. Read more