instrument that shows the extent or amount or quantity or degree of something

a wheel that regulates the rate of movement in a machine; especially a wheel oscillating against the hairspring of a timepiece to regulate its beat

the face of a timepiece; graduated to show the hours

mechanical device that regulates movement

a fine spiral spring that regulates the movement of the balance wheel in a timepiece

a rotating pointer on the face of a timepiece

a timepiece that derives its time scale from the vibration of atoms or molecules

a timepiece that shows the time of day

timepiece in which the passage of time is indicated by the flow of sand from one transparent container to another through a narrow passage

timepiece that indicates the daylight hours by the shadow that the gnomon casts on a calibrated dial

a timepiece that measures a time interval and signals its end

a wheel that regulates the rate of movement in a machine; especially a wheel oscillating against the hairspring of a timepiece to regulate its beat

the face of a timepiece; graduated to show the hours

mechanical device that regulates movement

a fine spiral spring that regulates the movement of the balance wheel in a timepiece

a rotating pointer on the face of a timepiece