How do they match: Timing Device Assemblers and Adjusters

  • Adjust sizes or positioning of timepiece parts to achieve specified fit or function, using calipers, fixtures, and loupes.
  • Change timing weights on balance wheels to correct deficient timing.
  • Examine and adjust hairspring assemblies to ensure horizontal and circular alignment of hairsprings, using calipers, loupes, and watchmakers' tools.
  • Mount hairsprings and balance wheel assemblies between jaws of truing calipers.
  • Test operation and fit of timepiece parts and subassemblies, using electronic testing equipment, tweezers, watchmakers' tools, and loupes.
  • Turn wheels of calipers and examine springs, using loupes, to determine if center coils appear as perfect circles.

  • Align parts or workpieces to ensure proper assembly.