420Waldos Watches feature Visible247, a revolutionary new illumination technology that uses miniature light receptive crystals molded into the watch dials, resulting in the highest performing photo luminescent injection molded polymers ever created.

Expose to any type of light source for just 10 minutes, and it will glow in the dark for at least 10 hours – a much more durable glow than has been possible until now. Remarkably, if it is exposed to a few hours of direct bright sunshine, it will hold its glow for a couple days! Our lume technology is available in a wide variety of color choices that glow in a multitude of colors.