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The Encyclopedia of Horology

Component record · Regulation

Pendulum Bob

Partially verified

Heavy weight

What it does

Provides the mass for oscillation

How it works

Evolution

Shape affects air resistance

Known variations

    Identification for collectors

      Common failure modes

      • Corrosion

      Diagram

      escape wheelpallets and leveroscillator
      Schematic: escapement arrangement. 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.