Tag Heuer Watches
frequently asked questions
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What allows me to read the time in the dark?
A non-radioactive material called Super Luminova has been used since 1998 to increase the readability of display elements on your TAG Heuer watch. It works by absorbing light and re-emitting it in darkness. The length of time it can produce this effect depends on how long it has been charged by exposure to natural or artificial light.