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The Encyclopedia of Horology

Component record · Keyless work

Setting Lever Spring

Partially verified

Flat spring with detents

What it does

Holds the setting lever in position

How it works

Evolution

Integrated into yoke springs in some designs

Known variations

    Identification for collectors

      Common failure modes

      • Loss of tension

      Diagram

      crownsliding clutchsetting wheelswinding pinion and ratchet
      Schematic: keyless winding and hand setting. 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.