English Lever Escapement with Unusual Precision Regulator

English lever escapement with unusual precision regulator signed, Bennett - 65 Cheapside, London, Clockmaker to the Royal Observatory. The circular ¾ plate movement has spotted plates, screwed pillars, chain-driven fusee, massive gilt balance cock incorporating a tangent screw regulator with silvered scale, plain balance with blued spring, right angle pointed pallet English lever escapement on turned ebonized base with glass dome. This model illustrates the ongoing efforts and innovations to increase accuracy and precision.