Pocket chronometer movement with dial and hands. It has a half-plate fusee movement, which is unsigned and unnumbered, Earnshaw-type spring-detent escapement but with passing and locking pieces on separate blocks, a free-sprung compensation balance (broken staff) and helical balance spring. The watch has a white enamel dial inscribed 'CHRONOMETER', chipped around the rim, with Roman numerals, spade and poker hands (most of the hour hand is missing), a subsidiary seconds dial below centre (hand is missing) and a state-of-wind up and down indicator above centre.