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The Encyclopedia of Horology

Component record · Keyless work

Clutch Wheel

Partially verified

Slide-mounted gear

What it does

Engages winding or setting train

How it works

Evolution

Also called castle wheel

Known variations

    Identification for collectors

      Common failure modes

      • Broken teeth

      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.