Fine Swiss gold minute repeating lever watch Circa 1920

Gold minute repeating watch with extra movement
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A fine Swiss yellow gold minute repeating open faced pocket watch with extra movement, circa 1920. Retailed by Tiffany & Co. Ultra thin manual winding nickel lever movement, 31 jewels, marked ‘extra’, center jewel set in a gold chaton. Gilt dial with painted black Breguet numerals, subsidiary seconds, outer minute track. Polished 18k yellow gold case, hinged cuvette, slide to activate the minute repeater at 3 o’clock. Case, dial and movement signed by maker and retailer.
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Diameter: 45 mm
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Signed: Tiffany & Co – Patek Philippe & Cie Geneve
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Accompanied by an Extract from the Archives confirming date of sale on 3 November 1921.
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Tiffany & Co and Patek Philippe were established 2 years apart in the 1830s, and have had a strong relationship through their 175-year histories. The present lot is an interesting a rare example of such collaboration. Most watches from the era were normally signed just by Tiffany & Co, however, this watch is signed with both the retailer and maker. Additionally, it is interesting to note that the Extract mentions the large, gold dial and that the case is numbered with just the movement number. Sold in New York.