Why does a Watch Need a Second Hand?

A useful feature of the second hand is to know the watch is still running.

Dyedo Tikio
4 min readDec 27, 2020

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A wall clock, desk clock or watch has 3 basic hands. These are the hour, minute and second hands. But when we check time, we only need the hour and minute hands. So what is the second hand appearing on the dial for? Do we let our free time have nothing to do, can we sit and…

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