timepiece vs measuring device

timepiece and measuring device both are nouns.

Word	Noun	Adjective	Verb	Adverb
timepiece	Yes	No	No	No
measuring device	Yes	No	No	No

As nouns, measuring device is a hypernym of timepiece; that is, measuring device is a word with a broader meaning than timepiece:

timepiece: a measuring instrument or device for keeping time
measuring device: instrument that shows the extent or amount or quantity or degree of something

Other hypernyms of timepiece include measuring instrument, measuring system.

timepiece (noun)	measuring device (noun)
a measuring instrument or device for keeping time	instrument that shows the extent or amount or quantity or degree of something