The Hermes 8 Days Spiral Boule Clock doesn’t add an extra day to the week -- it’s named as such because it works for 6 days after one wind. You wind this $560,000 clock by twisting the two half spheres that form its body. There is also a time-setting functions just in case you’re rich and lazy.

Crafted from crystal, white gold and 231 parts the Hermes 6 Days Spiral Boule Clock was inspired by an exhibited clock at the Hermes Museum in Paris.