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Sunday, February 2nd, 2014
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Tawatec Tritium Illuminated Watch

Tawatec watch with tritium tube illumination. Each of the hours, the hands, and the locator index for the outer bezel are furnished with glass tubes, the inside of which are coated with fluorescent materials. The tube is then filled with a gas containing Tritium, which is radioactive; the coating fluoresces in response to particle bombardment from the radioactive decay of the Tritium. Consequently, the watch has a steady nighttime glow requiring no power source or exposure to light that will, according to the specifications, last about ten years.

#watch #tritium

EXIF:

Width: 769
Height: 886
Company:  Canon
Camera:  Canon EOS 6D
Shot On:  2014:02:02 12:25:46
Lens Model:  EF24mm ƒ/1.4L II USM
Aperture:  ƒ/1.4
Focal Length:  24.0mm
Metering Mode:  Pattern
Exposure Mode:  Auto
Flash:  Did Not Fire
Exposure Time:  1/20th second
Exposure Program:  Aperture Priority
ISO:  12800

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