The story
So called because such clocks might run for more than a year on a single winding.
Etymology from Wiktionary, CC BY-SA 4.0.
400-day clock
Today it means: Synonym of anniversary clock. Full definition →
Today it means: Synonym of anniversary clock. Full definition →
So called because such clocks might run for more than a year on a single winding.
Etymology from Wiktionary, CC BY-SA 4.0.