A Regency small-size mahogany Royal Observatory one-day marine chronometer with going barrel John Roger Arnold, No. 368, circa 1815 The silvered dial signed and numbered Arnold, London 368 , Roman hour numerals, subsidiary seconds dial (at VI), blued steel hands, pinned top-plate inscribed Jno. R. Arnold LONDON Invt et Fecit No. 368 , Arnold escapement, spring foot detent with jewelled locking stone (defective), Pennington style cut bimetallic balance, oversprung blued steel helical balance spring, going barrel in gimballed brass bowl, bayonet fitting bezel with convex glass, three-tier brass bound mahogany box, the bottom section with small inset bone ivory plaque inscribed 368 , external brass drop handles 63 mm. dial diam., 135 mm. sq. box
A Regency small-size mahogany Royal Observatory one-day marine chronometer with going barrel John Roger Arnold, No. 368, circa 1815 The silvered dial signed and numbered Arnold, London 368 , Roman hour numerals, subsidiary seconds dial (at VI), blued steel hands, pinned top-plate inscribed Jno. R. Arnold LONDON Invt et Fecit No. 368 , Arnold escapement, spring foot detent with jewelled locking stone (defective), Pennington style cut bimetallic balance, oversprung blued steel helical balance spring, going barrel in gimballed brass bowl, bayonet fitting bezel with convex glass, three-tier brass bound mahogany box, the bottom section with small inset bone ivory plaque inscribed 368 , external brass drop handles 63 mm. dial diam., 135 mm. sq. box
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