Swiss 18K gold quarter repeating chronograph Circa 1905

Gold watch retailed by Berriat
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A Swiss 18 carat yellow gold keyless quarter repeating chronograph, made by Charles Barbezat-Baillot in Le Locle, circa 1905. A solid polished open faced plain case, with three horological complications. Quarter repeater by two hammers on two steel gongs, activated by the rectangular push piece located on the case band at 3 o’clock. 1/5 second chronograph, activated by the single round push piece located on the winding crown. Half instantaneous date of the month, subsidiary dial at 12 o’clock.
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White enamel dial with radial Roman numerals, outer minute track, subsidiary seconds at 6  and yellow gold  Louis XV hands. A gilt brass movement, going barrel, straight line lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, polished steel index regulator; repeater work on the main plate, under the dial, with silent centrifugal force governor to regulate the speed of the repetition mechanism; chronograph work on the top plate. Signature on the cuvette by the retailer.
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Diameter: 53 mm
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Weight: 98 g
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Signed: Charles Barbezat-Baillot, Le Locle
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Accompanied by a copy of the invention patent.
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Movement based on the Swiss invention patent No. 334, delivered on January 8, 1889, to Charles Barbezat-Baillot, Le Locle, for improvements to the construction of the mechanisms of repetition for pocket watches of all sizes; this patent includes in particular the centrifugal force regulator to regulate the speed of the repetition mechanism.
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Charles Barbezat-Baillot, Le Locle
The company C. Barbezat-Baillot was founded by Charles-Ami Barbezat-Baillot (1847-1938). He was the elder brother of Henri Barbezat-Bôle (1851-1921), the founder of H. Barbezat-Bôle S.A., Le Locle. Charles Barbezat-Baillot is the holder of many invention patents related to watchmaking and registers numerous trademarks: Trusty, Le Phare, Dixi, Fix Watch Co., etc.