If holding your watch up in the light for a few minutes to make the hands glow is not enough, then the Reactor watch feature tritium-filled tubes which will keep the thing alight for around 10 years. The watch is named the Superluminova and recharges instantly with just a small amount of light which then keeps it illuminated for up to 10 years. That's a long time and I sincerely hope you do not plan on staying in the dark for 10 years to test if it stays lit for that long.
It will set you back $300 - $450 over at Reactor Watch.
Via: Adult Style Watches