Designers of the Swiss brand Klokers imagined the Klok-02 Watch. They work on the basis that minutes and seconds are the same whatever the jet lag between cities. The dial is divided in two parts. The first one shows the minutes and seconds, the second one get a little window in which there is the third first letters of a city name and the number of the hours. A little button allows to navigate between cities. A crowdfunding campaign is currently on Kickstarter.