CRITICAL MASS
Reactor’s top selling style for our first five years, Critical Mass offers classic good looks that dress up well but still play hard. If you could have only one watch, a Critical Mass is hard to beat, as it performs flawlessly in the office or in the ocean.

Applying a unique Swiss material called Superluminova makes Critical Mass watches the brightest and longest-lasting phosphourescent watches in the world. However, while Superluminova is at least five times brighter than tritium after being charged in the light, that brightness fades to below that of tritium over several hours. As part of our quest to build the best watch possible, we saw a better solution.

Never Dark® is the first technology to combine the intense brightness of Superluminova with the multi-year longevity of tritium, providing optimal illumination under all lighting conditions. Because it can take up to 30 minutes for the human eye to fully adjust to the dark, Superluminova’s intense peak brightness makes a Never Dark® watch easily visible during that initial period. This can be even more important when moving repeatedly from light to dark (such as when going below deck on a boat during the day), as the Superluminova will continually recharge and the eye will not have time to adjust. In situations where the watch will remain in the dark for many hours, the tritium will remain visible for years, even if the watch is never returned to the light.