There’s really nothing quite like the National Institute for Standards in Technology (NIST) new F2 atomic clock when it comes to precision in time-keeping; at most it’ll be off by one second… every 300 million years. And while the watch you’re looking at above isn’t quite as precise, it is powered by the same kind of mechanism behind the NIST-F2. It’s called The Cesium 133 and as the name implies, uses the precise decaying properties of the Cesium-133 isotope to keep an extremely accurate track of time. It’ll lose a second every 1,000 years, which should be enough to keep you punctual within your lifetime, and a few generations down.
Of course no one really needs this kind of precision, but for the geeks out there it’s a fun piece of technology to wear on your wrist. You likely won’t be able to get one though, since it looks like only 10 are being made. It’s probably a good thing too since you’d have had to spend $6,000 to get one.