Ruby × Workstyle: Clean Room
3 jobs found.
Jewel Bearing Machinist (Watch Manufacturing)
Occupation of manufacturing jewel bearings (bearing stones) used in watches.
Jewel Bearing Assembler
Specialized profession that precisely polishes and processes jewels (such as ruby) for bearings under a microscope and assembles them into bearing parts of mechanical devices and measuring instruments.
Ceramic Artificial Gemstone Manufacturing Worker
Technical occupation that uses ceramic raw materials to compound, form, fire, polish, and inspect artificial gemstones such as ruby, sapphire, and cubic zirconia.