expression
invariably; like clockwork; with perfect regularity
Used when the same thing happens repeatedly without any change, as if stamped from a mold. Often carries a nuance of monotony or predictability.
See also: 判で押したよう (はんでおしたよう)
彼は毎朝、判で押したみたいに同じ時間に家を出る。
He leaves the house at exactly the same time every morning, like clockwork.
この店の味は判で押したみたいにいつも同じだ。
The taste at this restaurant is always the same, with perfect regularity.