Skip to content
The Encyclopedia of Horology

Component record · Escapement

Conical Balance Staff

Partially verified

Tapered staff ends

What it does

Provides support in non-jeweled movements

How it works

Evolution

Used in pin-lever watches

Known variations

    Identification for collectors

      Common failure modes

      • Point wear

      Diagram

      balance wheel with timing screwsflat or overcoil hairspringregulator index
      Schematic: balance, hairspring and regulator. An outline schematic drawn to show the arrangement of the parts discussed here. It is not a dimensioned working drawing and does not depict a particular maker's calibre.

      Sources & references

      1. de Carle, D., Practical Watch Repairing
      2. de Carle, D., Watch and Clock Encyclopedia
      3. Daniels, G., Watchmaking

      Where sources disagree, the disagreement is stated rather than resolved silently.