時計とけい仕じ掛かけ

noun

clockwork

Refers to a mechanism driven by a wound spring or weights, like that of a clock. Often used figuratively for something that operates with mechanical precision.

• このおもちゃは時計とけい仕じ掛かけで動うごく。

  This toy runs on clockwork.

• 彼かれの一いち日にちは時計とけい仕じ掛かけのように正せい確かくだ。

  His daily routine is as precise as clockwork.