A professional who performs variety of experiments on watch parts, lubricants, and abrasives used in manufacture of horological instruments to ascertain conformance to production standards. Responsibilities include:

• Heats or cools watch parts to specific temperatures in oven or refrigerator.
• Subjects heated or cooled watch parts to stress tests and records results.
• Tests lubricants and abrasives used in watch manufacture for conformance to established lubricity and abrasion levels.
• Analyzes test results to detect deficiencies in watch parts, lubricants or abrasives and suggests modifications in production methods to overcome deficiencies.
• Recommends new test procedures or testing devices as necessary.
• May assist in fabrication and installation of new testing devices.
• May repair ovens or refrigerators.