«Mundus», the slimmest world-time watch made today, displays a full measure of its maker’s expertise. It will surely join its smaller sister, the world’s most compact calendar watch made in 1989, in the Guinness Book of Records. Its platinum case holds a traditional Piguet movement fitted with an auxiliary mechanism only 0.6 mm thick, including the dial, for a total thickness not exceeding 4.2 mm. Each of the 29 executions composing this limited edition is individually numbered.