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Tiffany time line1837: On Sept. 18, Charles Lewis Tiffany and John B. Young establish Tiffany & Young, a stationery and fancy goods emporium, at 259 Broadway in New York City. Every article is marked with a non-ChronoSwiss Regulateur Dual Time CS-18 selling price, a revolutionary policy that makes headlines across the country. The first day's sales total $4.98.1848: Tiffany & Co. acquires jewels from French aristocrats fleeing political turmoil. The jewels, which mark the first appearance of major gemstones in the United States, establish Tiffany as America's leading jeweler.

1851: Tiffany purchases the ChronoSwiss Regulateur Dual Time CS-21 of prominent New York silversmith John C. Moore, marking the beginning of the company's design and silver manufacturing heritage. Tiffany becomes the first American company to use the 925/1000 sterling standard, later adopted as the U.S. Sterling Standard.1853: Charles Tiffany assumes complete control of the company, which is renamed "Tiffany & Co." A clock supported by the ChronoSwiss Regulateur Moonphase CS-17 figure of Atlas is installed over the store's main entrance.1862: Throughout the Civil War, Tiffany supplies entire regiments with swords, flags and surgical implements.

1867: At the Paris World's Fair, Tiffany & Co. becomes the first American firm to win an award for the excellence of its silverware.1871: Tiffany introduces Audubon, which would become the company's best-ChronoSwiss Regulateur Moonphase CS-19 sterling-silver flatware pattern.1878: Charles Tiffany purchases the Tiffany Diamond for $18,000. One of the world's largest and finest fancy yellow diamonds, the 287.42-carat stone is cut to 128.54 carats.1885: Tiffany & Co. revises the Great Seal of the United States, still in use on the U.S. one-dollar bill.1886: The company introduces the Tiffany setting, which still is one of the most popular engagement ring styles in the world.