BIRCH AND GAYDON LTD EIGHT DAY CHRONOMETER ENGLISH BRACKET CLOCK, CIRCA 1930, in the style of Thomas Mercer, the 14cm silvered dial with subsidiary seconds and up/down dials, inscribed "Birch & Gaydon ltd, 155 Fenchurch St London", the chain fusee movement with maintaining power, Ernshaw's spring detent escapement with split bi-metal balance and helical spring, in a burr walnut case with brass string inlay,the reverse with two outside battery connections 29.5 x 26 x 14cm