Very heavy complicated perpetual calendar watch Circa 1915

Very heavy gold complicated pocket watch by Audemars Freres
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A very heavy Swiss Audemars Freres hunter cased pocket watch in 18k gold with perpetual calendar and minute repeater, circa 1915.
White enamel dial, subsidiary dials for the indication of the month and leap years at 12 o’clock, date at 3 o’clock, days of the week at 9 am, opening for moon phase, additional seconds at 6 o’clock.
Beautifully engraved movement lever escapement with glazed cover, unusual polished steel fine adjustment, bimetallic balance, Breguet spring, two hammers ringing chime, pull the trigger in the band for repeating.
Sprung front bezel opened by depressing the button in the gold pendant. Three gold lids and bow.
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Diameter: 57 mm
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Weight: 201 g
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Signed: Audemars Freres Brassus Geneve
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After the bankrupt of Louis Audemars & Fils, where Charles Henri Audemars senior was director, Charles Henri’s two sons, Hector Adolphe Audemars and Charles Henri Audemars Junior founded Audemars Frères in Geneva and Brassus, circa 1915.

A few almost not visible short hairlines.
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Reference 0120000