Atomic clock radio signal syncing watches are so last year. Citizen just decimated the coolness factor of those watches with the Satellite Eco-Drive watch. This timepiece isn't just a concept, but will actually be produced as a limited edition later this year - and may have its tech show up in later watches. In a nutshell, the watch keeps its time super accurate from syncing with the navigational satellites that orbit Earth as opposed to syncing with radio signals that are broadcasted from local atomic clocks. Atomic clocks lose one second of time every 100,000 years or something like that. Maybe even longer. The point is that you'll be long dead before they are off by even a fraction of a second. Your standard quartz watch movement is accurate to within about 15 seconds a month. Syncing to an atomic clock is a good idea, and has traditionally been done in watches that do this by relying on radio signals that atomic clocks emit. However, there aren't atomic clocks all over the world, and neither are there such signals. If you live in the US, much of Europe, China, and Japan you can get atomic clock radio signals, everywhere else you are screwed. Even if you are in range the system to capture the signal and sync with it is quirky at best. I have a few atomic clock radio signal syncing clocks and am really never sure if they are getting signal or not. Navigational satellites that orbit the Earth do however get the signal.
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