The Golden Tourbillon Panoramique Grey Sapphire Watch by Corum is a limited edition of only five pieces and one could guess it’s because of the fragility of the synthetic sapphire crystals. During the fabrication process when cut into organic shapes it causes a lot of stress and the sapphires easily break so the finished result if mesmerizing but the actual process to get there is painstaking. The manually wound tourbillon movement with 90 hour power reserve has main plate and bridges that are all in sapphire which is an amazing feat. The case is made of 18k white gold with 309 diamonds and four sapphire crystals. Jaws will drop when the price is announced on this luxurious watch. $TBA.