Swiss pair of silver watches for the Chinese market Circa 1900

Pair of silver centre seconds lever watches attributed to Edouard Juvet
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A pair of Swiss, silver key-winding lever pocket watches with centre seconds, made for the Chinese market, circa 1890-1910.
Both watches have:  a gilded brass engraved Chinese-style movement, with going barrel, cylinder escapement, monometallic balance (gilded brass), and blued steel flat hairspring;  a white enamel dial with narrow Roman numerals, outer minute division, and original blued steel ovoid hands:  and a silver round-shaped polished case with a spring-loaded glazed cuvette. Cases are signed and accompanied by the original fitted box; and one contemporary winding key.
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Diameter: 55 mm
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Unsigned, attributed to Leo Juvet, Fleurier (Val-de-Travers) and Shanghai.
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Overhaul recommended.