A fine 19th century eight-day marine chronometer, the silvered dial signed C Harris, Cornhill, London No. 860 J M Bromwich & Co London & Andover, Roman hour numerals, gold hour and minute hands, very large subsidiary seconds dial and vector up-and-down dial, blued steel hands, large ¾-plate movement the main frame assembly with steel baluster pillars carrying barrel, fusee, centre, third and fourth wheels (all with six arm crossings), the third wheel having a short arbor with the bottom pivot mounted in a potence, the escape wheel, detent and balance mounted in a wedge-shaped sub-frame assembly, Earnshaw escapement, cut bi-metallic balance, demi-height discharging jewel, circular heat compensation weights, blued steel helical balance spring having adjustable balance cock stud to top coil, grey steel finish spring foot detent, large brass drum bowl, friction fit bezel with flat glass, gimbal, in later 3-tier brass-bound rosewood case, recessed brass carrying handles, space for ivory plaque to front of middle section.