The component is called a capacitor. A capacitor holds the power the watch needs, so the watch doesn't need a battery (which holds the power that non-kinetic electronic watches need to function).Dependant on the way the capacitor is constructed, some capacitors will deteriorate in their ability to hold charge over time, or even fail. If you want to store a larger amount of power in a smaller volume (like in a watch), you end up having to use the type of capacitor that is prone to deterioration/failure.It's possible your replacement was made with a low spec part which failed prematurely, but if your capacitor was already charged (i.e. had stored power already in it) when it was supplied, I wonder whether the charging mechanism in the watch was working. When your watch stopped (which it would do if it hadn't been worn for some time) would it operate correctly again after you wore it for bit, or did it work, then stutter, then stop and never work again?
Andrew Jones ● 2076d