For $556,000, the exceptional Hermés 8 Day Spiral Boule Clock is shaped out of 1kg crystal and 750 white gold. The crystal boule measures 88 mm in diameter and comprises 231 parts, including 25 jewels. The dial is gilded with white gold in a spiral fashion. Wind it by spinning the two semi-spheres in opposite directions. The movement is five-barrel Calibre H1951 with a 200-hour power reserve. Inspired by a clock exhibited in the Hermès Museum, this heavy-weight crystal timepiece is one of its kinds. The smooth glass orb has just one part jutting out at 6 o’clock to switch from winding to time-setting mode. Certainly meant for those who value time but for a heavy price!