The statement describes the standard mechanical operating principles of traditional grandfather clocks as a matter of definition and everyday observation, requiring no formal citation.
The claim outlines the foundational horological mechanics of a grandfather clock (weights/springs for power and an escapement for regulation). This is a textbook definition of a mechanical clock's operation, making it common knowledge. Although several papers discuss escapement mechanisms as biological or chemical metaphors, none evaluate or test grandfather clocks directly, meaning no citation is needed for this basic descriptive fact.