American silver enamel egg form pocket watch Circa 1920

Rare egg form watch by Black, Starr & Frost
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A rare silver enamel American egg with integrated clock and 8-day movement, circa 1920.
Silver, engine turned, pink-coloured translucent enamelling case with hinge. And with inside a silver-cased clock, which is mounted on a bracket. Signed enamel dial with Arabic numerals and blued spade hands. Bridge movement, frosted, gilt, with screw compensation balance.
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Dimensions: 57 x 46 mm
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Signed: Black, Starr & Frost, New York
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Established in 1810, Black, Starr & Frost are America’s oldest jewellery store and profoundly shaped the development of the country’s luxury jewellery industry. The company history is a fascinating success story that matches the stunning works of art Black, Starr & Frost are so famous for.