Hermès 8 Days Spiral Boule Clock — Edition of 1

Pictured above, it's a glass orb the size of a cricket ball (88mmØ) that winds by twisting the halves of the magnifying optical crystal sphere in opposite directions.

"The only protruding part is a push-button at 6 o'clock that is pressed to switch from winding to time-setting mode."

231 parts weighing 1,063 grams.

200-hour power reserve.

$560,000.