Hello Massdrop! You might want to change the description of this product.....according to the Traser website, the numerals on these watches are not illuminated by tritium. According to the Traser website, only the hands and the dial markers at the 12, 3, 6 and 9 positions are illuminated by tritium, contrary to the description on your website. I believe the numerals are illuminated by Superluminova, but not tritium.