Imabari Castle was completed in 1604 by Todo Takatora after he was rewarded with land in Iyo Province for his service at the Battle of Sekigahara. Like Takamatsu-jō, Imabari-jō was famous for its use of seawater in its moat system, as well as for being set in a flat plain beside the sea. The original five-story donjon was moved in 1610 - only six years after its construction - to the site of Kameyama-jō in Kameoka (modern Kyōto Prefecture). The present ferro-concrete reconstruction dates from 1980. Several other smaller towers have also been rebuilt, most recently in 2007 when the Kurogane-gomon gate and guardhouse complex was completed using traditional techniques.