Precision-instrument makers and repairers


  • Repairing, cleaning, and adjusting mechanisms of timing instruments, such as watches and clocks
  • Adjusting timing regulators, using calipers, watch-rate recorders and tweezers
  • Cleaning, rinsing, and drying timepiece parts, using solutions and ultrasonic or mechanical watch-cleaning machines
  • Testing timepiece accuracy and performance, using meters and other electronic instruments
  • Testing accuracy of meters, gauges, indicators, or other recording or controlling instruments to locate defective components and for conformity with standards
  • Calibrating instruments or scales, using hand tools, computer, or electronic devices
  • Inspecting components, connections, and drive mechanisms to detect defects
  • Assembling instruments and devices, such as barometers, control valves, gyroscopes, hygrometers, speedometers, tachometers, and thermostats
  • Testing, calibrating and adjusting electronic, mercurial, aneroid and other types of meteorological instruments for compliance with printed specifications and schematic diagrams, using voltmeters, oscilloscopes, tube testers and other test instruments
  • Adjusting and repairing masts, supporting structures, clearance lights, control panels, control cabling and wiring, and other electrical and mechanical devices
  • Repairing and setting optical instruments such as microscopes, telescopes, theodolities and sextants
  • Checking whether assembled units conform to specifications and ensuring stipulated performance and sensitivity by standard tests

    Skill level