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.
  • Bend parts, such as hairsprings, pallets, barrel covers, and bridges, to correct deficiencies in truing or endshake, using tweezers.
  • Clean and lubricate timepiece parts and assemblies, using solvents, buff sticks, and oil.
  • Observe operation of timepiece parts and subassemblies to determine accuracy of movement, and to diagnose causes of defects.
  • Replace specified parts to repair malfunctioning timepieces, using watchmakers' tools, loupes, and holding fixtures.
  • Test operation and fit of timepiece parts and subassemblies, using electronic testing equipment, tweezers, watchmakers' tools, and loupes.

  • Align parts or workpieces to ensure proper assembly.
  • Assemble metal or plastic parts or products.