With Patek Philippe Extract from the Archives confirming production of the present watch with Limoges-style "Triumph of Amphitrite" enamel in 1893 and its subsequent sale on 26 December 1893.
According to the engraved inscription on the cuvette, this watch was exhibited at the 1893 World Columbian Exhibition in Chicago before being sold in December of the same year.
The World's Columbian Exposition, also called "The Chicago World's Fair", took place in Chicago from May to October 1893 to celebrate the 400th anniversary of Christopher Columbus' discovery of the New World. The fair had a profound effect on architecture, the arts, Chicago's self image and American industrial optimism.
The International Exposition was held in a building which for the first time was devoted to electrical exhibits. It was a historical moment and the beginning of a revolution, as Nikola Tesla and George Westinghouse introduced the public to electrical power by providing alternating current to illuminate the Exposition. The general audience observed firsthand the qualities and abilities of alternating current power. All exhibits were from commercial enterprises. Thomas Edison, Brush, Western Electric and Westinghouse were amongst the exhibitors and General Electric Company (backed by Edison and J.P. Morgan) proposed to power the electric fair with direct current at the cost of one million dollars.
46 nations participated in the fair, it drew nearly 26 million visitors and left a remembered vision which can be recognized even in the Emerald City of L. Frank Baum's "Land of Oz" and in Walt Disney's majestic theme parks Disneyland and Walt Disney World (his father Elias had been a construction worker on some of the buildings).
A similarly enamelled pendant watch is illustrated in Patek Philippe by Martin Huber & Alan Banbery, p. 128, pl. 54 a, b.