Caesium clock for your wrist

Credit: Bathys Hawaii/ The Register

http://www.theregister.co.uk/2013/10/03/highend_chrono_chaps_build_atomic_watch/ / loses lose loss losing second each millennium smartwatch smartwatches smart watch news personal atomic clocks clock timepiece Cesium 133 announce announced high end high-end Hawaiian Hawaii watch Bathys Hawaii contain single chip laser heater sealed cavity cesium gas microwave filter photodiode detector detect detecting combination watch count hyperfine lines excite excitation state excited cesium 133 atoms National Institute of Standards and Technology NIST NIST-F1 clock USA timekeeping time keeping counter-propagating lasers cool trap gas of cesium atoms US government shutdown NIST's site not available claimed accuracy of one second every millennium Bathys buyer buyers timepiece /