Swiss silver ankerchronometer for French Navy Circa 1915

One of the earliest deck watches made for the French Navy by B. Fournier
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One of the earliest Swiss deck chronometers made for the French Navy, circa 1915. Original three part mahogany box with ivory plaque, inscribed Fournier. Plain silver case, cuvette inscribed: No. 302 J. Fournier Horloger de la Marine 57 Bd de Montparnasse Paris. Vacheron & Constantin ankerchronometer movement, moustache lever, wolf’s toothing, chronometer balance, fine adjusting device. White enamel dial with Roman numerals and rose gold hands.
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Diameter watch: 58 mm
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Weight watch: 140 g.
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Dimensions: 9 × 12 × 6 cm
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Signed: J. Fournier