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The Encyclopedia of Horology

Component record · Keyless work

Date Corrector

Partially verified

Manual advance lever

What it does

Allows quick setting of the date

How it works

Evolution

Engaged by crown or pusher

Known variations

    Identification for collectors

      Common failure modes

      • Jamming

      Diagram

      date ring, thirty-one positionsdate aperturedriving wheel and jumper
      Schematic: calendar work under the dial. 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.