A professional who tends machine that rough and finish polishes flat watch parts in successive operations. Respnsibilities include:

• Applies polishing agent to lap I surface.
• Positions blocked parts face down on lap under tripod holder, turns on air pressure which forces tripod against blocks, and adjusts machine to polish specified time.
• When machine automatically stops, removes blocks, cleans polished surfaces with tissue and cleansing agent, and inspects parts for scratches and blemishes.
• Verifies thickness of parts with micrometer, and reruns substandard parts.
• Refaces surface of lap on automatic turning machine.