Elegant Swiss platinum astronomic Art Deco pocket watch Circa 1924

Gold watch retailed by Gübelin, Lucerne
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A thin and elegant Swiss platinum astronomic Art Deco keyless pocket watch, made by Audemars Piguet in Le Brassus, circa 1924. A minute repeating open faced with perpetual calendar, moon phases and lunar calendar. Retailed by E. Gubelin, Lucerne. A plain case, with a chased monogram on the case back. A platinum dial with gold Arabic numerals, outer minute track and gold hand. Four subsidiary dials indicating date, week, month and moon phases. A nickel plated movement, Geneva striping decoration, 32 jewels, straight line lever escapement, cut bimetallic compensation balance with peripheral gold temperature and mean time adjustment screws, blued steel Breguet balance spring, index regulator, repeating on gongs by activating the slide on the band. The dial, case and movement are signed.
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Diam: 46 mm
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Signed: Audemars Piguet  Le Brassus
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Accompanied by a certificate of authenticity.
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Slightly oxidized on the dial.
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Gübelin: This company began in 1854 as a family business run by Maurice Breitschmid in Lucerne, Switzerland. He first advertised as a watchmaker, and as business grew, Breitschmid brought on his son-in-law, Jacques-Edouard Gübelin, as a partner. Gübelin eventually took over the company. He introduced jewelled watches and jewellery to the business in 1921 at the opening of their New York branch, after collaborating with the jeweller Edmond Frisch.
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Gübelin also opened branches in St. Moritz, Zurich, Geneva, Berne, Lugano and Basel. Gübelin’s sons eventually entered the family business; his eldest son, Dr Edouard Gübelin, opened a gemological laboratory and made a name for himself internationally, while his youngest son, Walter, was drawn toward artistic expression and contributed to the company through his creative designs. This successful company has created superior quality clocks and watches for more than a century.