Lot 376

French, 60 mm, 166 g, circa 1880
An exceptional pocket chronometer, probably a graduate's piece with spring detent escapement according to Thomas Earnshaw
Case: silver, tiered, glazed back side, slightly domed, rose gold pendant, bow, hinges and shackle. Dial: enamel, radial Roman hours, auxiliary seconds, blued Breguet hands. Movm.: full plate movement, keywind, frosted, gilt, chain/fusee, bimetallic chronometer balance with 3 cylindrical weights and 6 gold screws, freesprung blued helical balance spring, chatoned sapphire endstone on balance.

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