Description: Straight to the point, this is a killer MK1 pepsi 1675. Case has been previously polished, but the lugs remain thick and even. The dial is a day-glow MK1 variant that still glows under strong UV. These dials were transitional dials that Rolex used with experimental lume. The common belief is that the tritium mixture was mixed with Zinc-Sulfide which allows the tritium to still react to Intense UV light. Because of this feature, the dial is also nick named the day glow as it appears as if it’s sometimes glowing during the day.