BASEL - Swiss watchmaker Hublot unveiled on Wednesday 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.

A employee of Hublot Swiss watch maker, poses for photographers with Hublot's last creation: a 5-million-dollar watch set with 1,282 diamonds during at the Baselworld fair in Basel. (AFP Photo/Sebastien Bozon)

Jean-Claude Biver, president of the watch company which is owned by French luxury giant LVMH, said it would be difficult to make a more expensive watch "because the surface of the watch is limited."

It took 17 people 14 months to set the more than 140 carats of diamonds on the watch's white gold bracelet, said Biver at the world's biggest watch show in Basel, which opens to the public Thursday.

Several people have expressed interest in acquiring it, said Biver, without giving details.