Watches and Clock Maker make, repair, clean, assemble and adjust watches and clocks. They may work with either classic, mechanical time pieces or digital clocks, watches and accessories.

Optical Instrument Maker carries out service tasks such as cleaning, oiling and regulating; checks prepared parts for accuracy using measuring equipment, assembles parts and adjusts as necessary using hand and machine tools at the optical instrument.

Balancing Maker Operate balancing machine and dynamically balance according to standard any rotary components including but not limited.

Barometer Maker is a scientific instrument used to measure atmospheric pressure, also called barometric pressure. 

Meteorological Instrument Maker are responsible for developing, installing and maintaining the computer systems, radar, automatic weather stations and electronic airport systems that meteorological technicians use in gathering information for weather.

Nautical Instrument Maker make, repair, and determine the equipment of nautical instruments

Dental Prosthesis Repairer fabricate and repair fixed and removable dental prostheses and devices according to dentists' instructions. 

Orthopedic Appliance Repairer make, fit, repair, and maintain orthotic and prosthetic devices according to specifications and under the guidance of orthotists and prosthetists.

Watch and Clock Repairer repair or replace broken, damaged, or worn parts on timepieces, using lathes, drill presses, and hand tools. 

Optical Instrument Repairer make, repair and calibrate optical instrument

Balancing Machine Repairer operate balancing machine and dynamically balance according to standard any rotary components including but not limited.

Musical Instrument Maker make, assemble, repair, adjust, restore musical instruments and tune them to the required pitch with hand or power tools. 

Musical Instrument Tuner are experts at assessing an instrument's problems and recommending a realistic repair based on the instrument's age, condition, and quality.

Piano Maker tunes, repairs, and maintains University pianos and harpsichords. 

Drum Maker provide rhythm and beat to a performance, play the drum during studio recording sessions, and contribute to the production of music.

Turner, Musical Instrument make, assemble, repair, adjust, restore musical instruments and tune them to the required pitch with hand or power tools. They usually specialize in one type of instrument, such as string instruments, brass instruments pianos, reed instruments or percussion instruments.

Jewelers use various tools and techniques to make jewelry from metals, diamonds, gems and other materials. They also sell, clean and restore jewelry pieces, and sometimes do the necessary research and evaluations to value rings, earring, bracelets.

Goldsmith design and make gold jewelry, including jewelry with precious and semi-precious stones. This may involve cutting, filing, hammering, turning, spinning, bending and casting gold or other metals. 

Silversmith is a metalworker who crafts objects from silver or other precious metals. Typically, a silversmith will aim to create larger scale work for functional and/or decorative purposes for example tableware, flatware, ecclesiastical pieces or functional vessels.

Pewtersmith is a metalworker who does finishing work on iron and steel such as filing, lathing, burnishing or polishing.