Appearance: Lantern clock on wooden pyramid stand.
Period: Early to Middle, but also later period.
Escapement: Single and double foliot; late examples possibly with balance wheel.
Power Source: Lead weight
Construction: Lantern with square or rectangular pillars. Early iron / later brass.
Yagura-dokei utilise the same style lantern clock as the dai-dokei, but the stand is more robust and is intended to sit on the woven tatami mats, rather than in a tokonoma (alcove). The stand design was more likely to tolerate earthquakes (several wadokei on dai-dokei stands are known to have fallen off their bases in Tokyo during the 2011 earthquake).