This blue Fiona Krüger Petit Skull sapphire diamond watch features a textured leather strap and skull-shaped steel case. It is encrusted with white and yellow diamonds with sapphires around the edge. Meticulously crafted, it has a guilloché dial, silver tone hands and cutouts revealing the mechanics within. Arthur Conan Doyle once wrote, 'It is not my intention to be fulsome, but I confess that I covet your skull.' A strange thing to say in many situations, unless it's referring to this Fiona Krüger watch.