pendulum watch vs ticker

pendulum watch and ticker both are nouns.

Word	Noun	Adjective	Verb	Adverb
pendulum watch	Yes	No	No	No
ticker	Yes	No	No	No

As nouns, ticker is a hypernym of pendulum watch; that is, ticker is a word with a broader meaning than pendulum watch:

pendulum watch: (18th century) a watch with a balance wheel having a fake pendulum attached to it
ticker: a small portable timepiece

Other hypernyms of pendulum watch include watch.

pendulum watch (noun)	ticker (noun)
(18th century) a watch with a balance wheel having a fake pendulum attached to it	a character printer that automatically prints stock quotations on ticker tape
	a small portable timepiece
	the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body