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Occupation 7311 - Precision-instrument Makers and Repairers

Primary-source occupation page using the ILO ISCO-08 structure as the English reference layer.

2026-07-12Not official

Classification note

  • Published code: 7311
  • Hierarchy level: unit-group
  • This page uses ISCO-08 as the English occupation reference layer while Thai TSCO label harmonization remains incomplete.

Occupation hierarchy

  • Major Group: 7 Craft and Related Trades Workers
  • Sub Major Group: 73 Handicraft and Printing Workers
  • Minor Group: 731 Handicraft Workers
  • Unit Group: 7311 Precision-instrument Makers and Repairers

Child groups

  • No child groups are published under this code.

TSIC codes where this occupation is primary

  • No primary TSIC mapping is published for this occupation yet.
  • No related TSIC mapping is published for this occupation yet.

Definition

Precision-instrument makers and repairers make, calibrate, repair, maintain, adjust and install mechanical watches and clocks, and nautical, meteorological, optical and other precision instruments and equipment, and set them for correct performance.

Tasks include

Tasks include - (a) repairing, cleaning and adjusting mechanisms of timing instruments such as watches and clocks; (b) adjusting timing regulators, using calipers, watch-rate recorders and tweezers; (c) cleaning, rinsing and drying timepiece parts, using solutions and ultrasonic or mechanical watch-cleaning machines; (d) testing timepiece accuracy and performance, using meters and other electronic instruments; (e) testing accuracy of meters, gauges, indicators or other recording or controlling instruments to locate defective components and for conformance to standards; (f) calibrating instruments or scales, using hand tools and computer or electronic devices; (g) inspecting components, connections and drive mechanisms to detect defects; (h) assembling instruments and devices such as barometers, control valves, gyroscopes, hygrometers, speedometers, tachometers and thermostats; (i) 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; (j) adjusting and repairing masts, supporting structures, clearance lights, control panels, control cabling and wiring, and other electrical and mechanical devices (k) repairing and setting optical instruments such as microscopes, telescopes, theodolites and sextants; (l) checking whether assembled units conform to specifications and ensuring stipulated performance and sensitivity by standard tests.

Included occupations or child groups

Examples of the occupations classified here: - Instrument/meteorological maker - Photographic equipment repairer - Surgical instrument maker - Watchmaker

Excluded occupations

Some related occupations classified elsewhere: - Orthopaedic appliance maker -3214 - Locksmith - 7222 - Machine tool operator - 7223 - Watch assembler- 8212

ISCO-88 correspondence

  • 7311