These watches allow you to easily check the time in one of 28 different major cities. You can also watch two time zones simultaneously. Using World Timer function you can select the city as well. All 28 cities are abbreviated around the bezel of the watch starting with GMT at the 12 o'clock position, and whenever you are prompted to select a city in time set mode, world time mode, and world alarm mode, you press a button to advance the second hand until it points to the desired city. World Timer watches are for the jet-setters amongst us, but they look so good that you can get one of them just for their looks!