Not a clock with balls, but Time Machine

We managed to find a very original replacement with the usual analogue or electronic watches in the Amazon store : these are, so to speak, ball-clocks that give rise to inextricable associations with Newton's pendulum in the head.

The principle of the device is extremely simple and clear from the photo: every minute one of the metal ball rolls onto the minute shelf, and, accordingly, every 5 minutes - into the five-minute one. The time interval ends with the fall of one ball on a recess lined up to 12, thus indicating the beginning of a new hour.

A light metal clank must be a fairly comfortable and rhythmic way of telling the owner of the time. Especially against the background of the price: only $ 25.

via Boing Boing