<P> The fully wound mainspring in a typical watch can store enough energy reserve for roughly two days , allowing the watch to keep running through the night while stationary . In many cases automatic wristwatches can also be wound manually by turning the crown , so the watch can be kept running when not worn , and in case the wearer 's wrist motions are not sufficient to keep it wound automatically . </P>
<P> The fully wound mainspring in a typical watch can store enough energy reserve for roughly two days , allowing the watch to keep running through the night while stationary . In many cases automatic wristwatches can also be wound manually by turning the crown , so the watch can be kept running when not worn , and in case the wearer 's wrist motions are not sufficient to keep it wound automatically . </P>
how long does a self-winding watch stay wound
how long does a self-winding watch stay wound
roughly two days
roughly two days