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A man works on a Hublot watch at the Swiss watchmaker manufacture in Nyon November 5, 2009. REUTERS/Valentin Flauraud (SWITZERLAND BUSINESS)

World's most expensive watch unveiled at $5M

Swiss watchmaker Hublot unveiled on Mar. 7 the world's most expensive watch with a price tag of $5 million and inlaid with more than 1,200 diamonds, including six stones of more than 3 carats each.