The Watch Encyclopedia

Hairspring

Also known as: balance spring

The fine spring that restores the balance wheel towards its central position and helps determine oscillation rate.

Good to know

Compare the exact calibre and its published specifications. A movement family can have several versions with different features.

Watch library

Jaquet Droz

Jaquet Droz

Jaquet Droz

Jaquet Droz

Jaquet Droz

Jaquet Droz

Connections use recorded specifications. Features vary by reference.