Swiss gold open faced keyless pocket chronometer Circa 1902

Gold watch made for Bailey, Banks and Biddle Co.
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A very fine and rare Swiss, 18 carat gold keyless pocket chronometer, circa 1902. Made for the Bailey, Banks and Biddle Co., Philadelphia. A polished plain case, white enamel dial has red Arabic minutes numerals, black Arabic hour numerals, a subsidiary seconds dial with red Arabic numerals and pink gold decorative hands. The numbered movement has a very fine caliber with lever escapement, fine adjusting device.Dial, case and movement signed by Bailey, Banks and Biddle, movement signed by Patek Philippe.
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Diameter: 46 mm
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Weight: 80 g
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Signed: Patek, Philippe & Cie.  Genève
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Bailey, Banks & Biddle Co.
Bailey, Banks & Biddle Co. in Philadelphia, United States of America, was one of the most important clients of Patek Philippe. Bailey & Kitchen, as it was originally known, was founded at 136 Chestnut Street, Philadelphia, on September 20, 1832, by Joseph Trowbridge Bailey (1806–1854) and Andrew B. Kitchen (died 1850). The partnership was dissolved in November 1846. It was reformed with new partners as Bailey & Co. in 1841, and on March 1, 1878, it was again re established as Bailey Banks & Biddle. From about 1852–1862, the company made its own silver; they were principally supplied by Taylor and Lawrie before 1852, and from about 1862–1870, by George B. Sharp. After 1870, they resold silver from a variety of manufacturers.