東西向、南北向與垂直向三個成分同裝於一個底盤上，並同在一煙薰記錄紙，採用限速式發條裝置作為記錄器的啟動系統。此樋口式一倍強震儀擺與阻尼器設計在一起。

The instrument incorporates three components: east-west, north-south, and vertical directions, all mounted on a single base. They record simultaneously on a single smoked recording paper. This Hikoguchi Type I seismometer features a speed-limited spring mechanism as its recording activation system, with the pendulum and damper designed together.