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Timing Device Assemblers and Adjusters - 51-2061.00

O*NET-SOC Description

Perform precision assembling or adjusting, within narrow tolerances, of timing devices such as digital clocks or timing devices with electrical or electronic components.

Sample of Reported Job Titles

  • Calibration Specialist
  • Calibrator
  • Clockmaker
  • Horologist
  • Time Stamp Assembler
  • Watch Technician
  • Watchmaker

SOC Occupation Groups

51-0000 Production Occupations
51-2000 Assemblers and Fabricators
51-2060 Timing Device Assemblers and Adjusters
51-2061.00 Timing Device Assemblers and Adjusters

Related Occupations


  • Adjust sizes or positioning of timepiece parts to achieve specified fit or function, using calipers, fixtures, and loupes.
  • Assemble and install components of timepieces to complete mechanisms, using watchmakers' tools and loupes.
  • Bend inner coils of springs away from or toward collets, using tweezers, to locate centers of collets in centers of springs, and to correct errors resulting from faulty colleting of coils.
  • Bend parts, such as hairsprings, pallets, barrel covers, and bridges, to correct deficiencies in truing or endshake, using tweezers.
  • Change timing weights on balance wheels to correct deficient timing.
  • Clean and lubricate timepiece parts and assemblies, using solvents, buff sticks, and oil.
  • Disassemble timepieces such as watches, clocks, and chronometers so that repairs can be made.
  • Estimate spaces between collets and first inner coils to determine if spaces are within acceptable limits.
  • Examine and adjust hairspring assemblies to ensure horizontal and circular alignment of hairsprings, using calipers, loupes, and watchmakers' tools.
  • Examine components of timepieces such as watches, clocks, or chronometers for defects, using loupes or microscopes.
  • Mount hairsprings and balance wheel assemblies between jaws of truing calipers.
  • 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.
  • Review blueprints, sketches, or work orders to gather information about tasks to be completed.
  • Test operation and fit of timepiece parts and subassemblies, using electronic testing equipment, tweezers, watchmakers' tools, and loupes.
  • Tighten or replace loose jewels, using watchmakers' tools.
  • Turn wheels of calipers and examine springs, using loupes, to determine if center coils appear as perfect circles.

Detailed Work Activities

  • Align parts or workpieces to ensure proper assembly.
  • Apply lubricants or coolants to workpieces.
  • Assemble metal or plastic parts or products.
  • Calculate dimensions of workpieces, products, or equipment.
  • Clean workpieces or finished products.
  • Disassemble equipment for maintenance or repair.
  • Inspect timing devices.
  • Repair precision devices or workpieces.
  • Reshape small metal components for precision assembly.
  • Review blueprints or other instructions to determine operational methods or sequences.

Military Crosswalk Titles

  • Electronics Technician, Submarine, Navigation (Navy - Enlisted)
  • WSN-2 Stabilized Gyrocompass Technician (Navy - Enlisted)

Apprenticeship Crosswalk Titles

No information available.

DOT Crosswalk Titles

  • Assembler
  • Assembler, Watch Train
  • Banking Pin Adjuster
  • Barrel Assembler
  • Barrel-Bridge Assembler
  • Barrel-Endshake Adjuster
  • Chronometer Assembler and Adjuster
  • Chronometer-Balance-and-Hairspring Assembler
  • Hairspring Assembler
  • Hairspring Vibrator
  • Pallet-Stone Inserter
  • Pallet-Stone Positioner
  • Timing Adjuster
  • Watch Assembler