Citizen Holdings - Atomic Timekeeping

Atomic Timekeeping

The Skyhawk A-T line of watches features Radio Controlled Timekeeping. The watches can synchronize with radio clocks in Japan, North America, and Europe and will automatically select the correct frequency for doing so based upon location of home time zone. The watch actually tracks two time zones—home and world—but synchronizes to the 'home' zone. When traveling, the user may swap the 'home' and 'world' zones—thereby enabling proper time signal reception on a different continent while retaining the other time. The day, date, and Daylight Saving Time settings are also set automatically when the watch is synchronized. These features are comparable to the synchronization with atomic clocks found in Casio Wave Ceptor watches. The Perpetual Chrono A-T is another of Citizen's radio controlled watches. The watch syncs with the atomic clocks in Colorado or Germany depending on signal strength and location. It also incorporates the eco-drive technology which means it will never require a battery.