Barraud, Cornhill, London, Movement No. 5184, 175 x 195 x 177 mm, circa 1860

A ship's chronometer with 56h power reserve
Case: mahogany, brass inlays, applied ivory shield, applied handles, case key, brass gimbals and bowl, three-body, with lid and glass. Dial: silvered, signed, numbered, radial Roman numerals, auxiliary seconds, gold Breguet hands. Movm.: brass movement, polished, decorated, moulded pillars, chain/fusee, spring detent escapement according to Thomas Earnshaw, bimetallic chronometer balance with 2 screws, 2 nuts and 2 movable trape, freesprung blued helical balance spring, chatoned diamond endstone on balance.