Luminous Watch Luminous Watch for Men The watch needs to absorb light before it glow. Sources of light are everywhere, such as sunlight, bedside lamps, and car lights and so on.A few seconds of exposure to the light can make it glow in the dark.The longer the watch exposure to the light, the better the luminous effect in the dark.The afterglow lasts for up to 8 hours. It's enough to last whole night. iced out watch for men Iced Out Watch for Men Full rhinestone decorate strap and case, make watch is bling under the light.The decorative sub-dial makes the watch look no longer monotonous, but becomes more impactful. Size Dial diameter 42mm Watch thickness 10mm Band length 220mm Weight 90g