An interesting mid 19th century French two day marine chronometer movement Vissiere, 56 Rue de L'Ouest, Paris, No.250 The 3 inch signed silvered dial with 'regulator' layout; the outer Arabic minutes enclosing a subsidiary hour dial to the left and running seconds to the right, the power reserve indication in an arc at the base, marked in 7 hour increments, with fine blued steel hands, the signed and numbered movement united by four turned tapering pillars, Harrison's maintaining power to the chain fusee with detent escapement, freesprung jewelled helical balance spring to a cut and compensated bimetallic balance, contained in a weighted, bowl, numbered to the interior. The bowl 9cms, (3.5ins) diameter Footnotes: Simon Vissiere (1822-1887) learnt his craft under Joseph Winnerl (1799-1886) and in time took on Theodore-Marie LeRoy as a student. He was particularly interested in the influence of magnetism on chronometry and was awarded a Silver Medal in 1849. He exhibited in London in 1852, patented a balance in 1867, and participated in Admiralty trials in 1871. He conducted many experiments and observations at his home observatory. For further information on this lot please visit Bonhams.com