Crystal That Regulates Time in Watches
This page is the CodyCross answer for the clue below from Welcome to Japan, Group 578, Puzzle 5 (Super Mario Bros).
Question is: Crystal That Regulates Time in Watches
and the answer is: QUARTZ
Word Meaning:
QUARTZ — (mineralogy) The most abundant mineral on the earth's surface, of chemical composition silicon dioxide, SiO₂. It occurs in a variety of forms, both crystalline and amorphous. Found in every environment.
Definitions from Wiktionary.