clock face vs clock dial

clock face and clock dial both are nouns.

Word	Noun	Adjective	Verb	Adverb
clock face	Yes	No	No	No
clock dial	Yes	No	No	No

As nouns, clock face and clock dial are synonyms defined as:

clock face and clock dial: the face of a clock showing hours and minutes of the day

clock face (noun)	clock dial (noun)
the face of a clock showing hours and minutes of the day	the face of a clock showing hours and minutes of the day