Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Measuring Devices (hierarchy name)
5. measuring devices (instruments)
6. [measuring devices for extent]
7. timepieces
8. [timepieces by form]
9. watches

Anotations

Scope note:

Timepieces, with one or more sweephands that can be started and stopped at will, used for precise measurement of elapsed time. To refer to timepieces that tell the time of day in addition to these functions, use "chronographs."