Description: A rare small ship's chronometer recorded in the inventory of the Royal British Navy in Greenwich from 1822 to 1911. The chronometer was probably upgraded in Charles Frodsham's workshop in 1848. Case: rose wood, brass inlays, two bone shields, screwed on handles, with lid and glass, three-body. Dial: silvered, signed, numbered, inlaid radial Roman numerals, auxiliary seconds, "broad arrow", blued spade hands. Movm.: brass movement, 55 mm, polished, decorated, moulded movement pillars, chain/fusee, Earnshaw's spring detent escapement, bimetallic chronometer balance with 2 weights and 8 screws, freesprung helical balance spring. Lit.: Tony Mercer "John Arnold & Son Chronometer Makers" London 1972, page 249.
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