RARE Haller Seth Thomas Impulsed 400 Day Anniversary Clock

This is a rare example of a short lived design that utilizes a helical suspension wire to attached to an adjustable pendulum that is set into 2 jewels like the infamous Haller "Timebomb" clock but the difference is that this clock uses electromagnetic energy to provide the impulse that keeps the pendulum in motion instead of a mainspring I've restored these clocks before including changing the suspension wire and having to adjust the positions of the magnets to set the clock in beat and they are fun to work on and its a very interesting clock.  The pendulum rotates much more quickl