These Hague clocks were the first clocks with pendulum and verge escapement which was an invention of the Dutch scientist Christian Huygens - he invented the pendulum in 1656. The first pendulum clock was made by Salomon Coster.
Silvered skeleton chapter ring on black velvet. Guilt brass repousse upper spandrels, brass skeleton signature. Veneered with ebony, going and striking trains with five wheels and driven by a single barrel. Double striking with one stroke at the first quarter on the smaller bell and at the third quarter at the larger bell, duration 8-days.