Detached lever escapement — Chinese movement escapement and jewels.jpg
Chinese movement escapement and jewels.jpg — Hustvedt · CC BY-SA 3.0 · source

Escapement

Detached lever escapement

How it works

A pivoted lever transmits impulse from the escape wheel to the balance, which then swings freely for most of its arc.

Why it was invented

Detachment lets the balance spring govern rate; it became the near-universal watch escapement.

Experiment in the Simulation Lab →

Found in these objects