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TONDA HEMISPHERES, THE TRAVELLER’S TIMEPIECE

The double GMT pocket watch was made circa. 1870 and brought back to life in the restoration workshops of Parmigiani Fleurier in 2004. The desire to create the brand’s own dual time-zone wristwatch came from there.

The pocket watch is made of two separate movements, both mounted on the same main plate but functioning independently from one another. Obviously, Parmigiani’s research and development team couldn’t resort to such a solution on the restricted space of a wristwatch so they devised an ingenious mechanism incorporating two movements: a motor and a follower. This allows the second time-zone to be either synchronized with the main time – i.e. linked to the full hour time with a desired interval – or indexed to it with an interval of hours and minutes. In other words, it allows any two locations to be paired, even those with a half-hour or 15 minutes difference.

The Tonda Hémisphères presented in 2007 is the ultimate traveller’s timepiece and it has its source in a restoration piece. It is showcased at Les Ambassadeurs in Zürich, Bahnhofstrasse, until February 29th 2016.