Hublot Spirit of Big Bang Yellow Sapphire Watch
Created by fusing copper and aluminum oxide, this Spirit of Big Bang timepiece boasts the hardest possible sapphire yet is as light as titanium at just 107 grams. The first scratch-resistant yellow sapphire watch is powered by the legendary Zenith El Primero chronograph movement which has been extensively reworked to give it a finish more suitable for Hublot's creative expressions. Each watch is limited to 100 pieces and is finished with a transparent yellow lined strap and black-plated titanium buckle clasp.