This is a Anniversary Clock by Tempora that works by a battery. It is clever a weight on a lever dropes down a notch every second then after about 46 seconds it is sprung back up by a electromagnet. As the weight goes down it drives the the anniversary balls back and forth. Clever I thnk
It's a Hettich floating balance clock driven by a magnetic lifted gravity arm. This one comes in the shape of a anniversary clock.
roeion 1 year ago