Barraud "Maker to the Royal Navy", 41 Cornhill, London, Movement No. 2509, 180 x 170 x 175 mm, circa 1859

A ship's chronometer with 56h power reserve and auxiliary compensation balance with "correcting weight"
Case: mahogany box, inlaid handles, brass inlays, brass gimbals and bowl. Dial: silvered, signed, numbered, applied specification ornaments, inlaid Roman numerals, gold spade hands. Movm.: brass movement, moulded pillars, chain/fusee, auxiliary compensation balance with one trapezoidal weight, two regulating screw nuts, two screws and Barraud's legendary "correcting weight", freesprung blued helical balance spring, chatoned diamond endstone on balance.