Swiss gold enamel and diamond set pendant watch Circa 1900

Rose gold Art Nouveau brooch watch by LeCoultre
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An exquisite, small Swiss 18 Carat gold, enamel and diamond set open faced Art Nouveau pendant watch with matching brooch, circa 1900. Bridge movement, screw compensation balance. White enamel dial with blue Arabic hours and gold minute dots. Engine turned, translucent cobalt blue enamelled case back, centred by a large diamond, band, pendant and bow also set with diamonds. Dial and movement signed by the retailer, case and movement with matching numbers. Accompanied by a 14 Carat gold brooch with wings in different shades of blue from turquoise to cobalt framing a very fine diamond on top of a turquoise coloured opal.
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Diameter: 25 mm
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Weight: 26 g
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Signed: LeCoultre & Co Swiss 

             Bailey, Banks & Biddle Philadelphia (dial and movement)
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Bailey & Kitchen, as it was originally known, was founded in Philadelphia in 1832. It became Bailey & Co in 1841 and Bailey, Banks & Biddle in 1878. At the turn of the century, Bailey, Banks & Biddle was commissioned by the U.S. Government to update the Great Seal of the United States, its design today remains the official version of the seal. The company also designed and made many of the military medals that are still used today, including the Medal of Honor, the Silver Star, the Bronze Star and the Purple Heart.
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LeCoultre & Cie
The earliest records of the LeCoultre family in Switzerland date from the 16th century, when Pierre LeCoultre (circa 1530 – 1600), a French Huguenot, fled to Geneva from Lisy-sur-Ourcq, France to escape religious persecution. In 1558, he obtained the status of inhabitant but left the following year to acquire a plot of land in the Vallée de Joux. Over time, a small community formed and in 1612, Pierre LeCoultre’s son built a church there, marking the founding of the village of Le Sentier where the company’s manufacturing is still based today. In 1833, following his invention of the machine to cut watch pinions from steel, Antoine LeCoultre (1803-1881) founded a small watchmaking workshop in Le Sentier where he honed his horological skills to create high-quality timepieces. In 1844, he invented the world’s most precise measuring instrument at the time, the millionomètre, and in 1847 he created a key less system to rewind and set watches. Four years later, he was awarded a gold medal for his work on timepiece precision and mechanization at the first Universal Exhibition in London. In 1866, at a time when watchmaking skills were divided up among hundreds of small workshops, Antoine and his son, Elie LeCoultre (1842-1917), established the Vallée de Joux’s first fully fledged manufacture, LeCoultre & Cie, bundling their employees’ expertise under one roof. Under this setup, they developed the first partially mechanized production processes for complicated movements in 1870. By the same year, the manufacturer employed 500 people and was known as the Grande Maison of the Vallée de Joux. By 1900, it had created over 350 different calibres of which 128 were equipped with chronograph functions and 99 with repeater mechanisms. From 1902 and for the next 30 years, LeCoultre & Cie produced most of the movement blanks for Patek Philippe of Geneva.