Important Collectors' Wristwatches, P...
Geneva, Hotel Noga Hilton, Oct 16, 2005
?Keyless pocket chronometer? Attributable to Marius Lecoultre, Rue Bonivard 8, Geneva, circa 1875. Very fine and possibly unique 18K gold hunting-cased, keyless, astronomical, retrograde perpetual calendar, pocket chronometer with phases of the moon and spring detent escapement and spherical hairspring.
C. Five-body, "bassine et filets", solid, both covers engine-turned, front cover with black enamel monogram, glazed hinged cuvette. D. White enamel, radial Roman numerals, outer minute track, retrograde date sector with Arabic numerals set at the top, below central phases of the moon aperture, days of the week aperture at IX o'clock, month aperture at III o'clock, subsidiary seconds. Blued steel "fleur-de-lys" hands. M. 20''' (45,3 mm), frosted gilt, 13 jewels, fusee and chain, Harrison?s maintaining power, spring detent escapement with gold escape wheel, cut bimetallic compensation balance with gold timing screws, free-sprung blued steel spherical balance spring, diamond end-stone, unusual keyless winding and setting mechanism, retrograde date mechanism invented by Marius Lecoultre. Case with case maker?s mark HF& Co. Diam. 58 mm.
Grading System | |
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Grade: |
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Case: 3 |
Good |
Movement: 3* |
Good Overhaul recommended, at buyer's expense |
Dial: 3-15-01 |
Good Slightly rusted HANDS Original |