The Gate of the Clock Key is a Celestial Spirit Gate Key used by Celestial Spirit Mages to summon the Clock, Horologium.
Description[]
In the Manga, the key is depicted to be an ordinary silver key with the crest of the Clock, a simple clock with two hands with the shorter one pointing to the right and the longer one pointing upward, stamped on its bow.[1] In the Anime, the key is still depicted as silver but is designed more intricately. The bow is designed similar to a cuckoo clock with the crest in the middle, colored brown. The blade of the key is of simple design, similar to other silver keys.[2]
Usage[]
While in possession of the key, a Celestial Spirit Mage may be able to summon the Clock Horologium by reciting the quote, "Open Gate of the Clock! Horologium!". This summons Horologium, a walking grandfather's clock that is able to shield people inside its body.[3]