A unique Japanese pillar clock whose weight doubles as a hand. A simple core mechanism is combined with ingenious details in many parts of the clock. Reportedly the most widespread clock of its time. It can be adjusted to seasonal time by changing the intervals of the indices on the front panel on 24 solar terms of the year.“Made by Yamatojo Araki, living in Yanaginobanba, Shijo, Kyoto” is engraved.