The invention of the fusee mechanism around 1450 revolutionized portable clock design by providing a constant torque from the mainspring. This innovation allowed for more accurate timekeeping, as it compensated for the varying force of the mainspring as it unwound. The fusee became a standard feature in mechanical clocks, significantly improving their reliability and precision. This advancement played a crucial role in the evolution of horology and the development of timekeeping technology.

The invention of the fusee mechanism for constant force improved temporal accuracy, influencing metaphysical poets like John Donne in their explorations of time and eternity. This technological advancement allowed poets to delve deeper into the philosophical implications of time in their works.