One example of gen lume
se this link: http://www.watchcollectinglifestyle.com/home/insider-royal-oak-offshore-diver-ref-15703-a-real-divers-watch
"The luminova is not the most powerful, but with enough brightness and several hours of night life. If you are a crazy 'luminova lover' you will be disappointed. When it comes to brightness of the super-luminova at night we can only think of IWC, Blancpain and Omega."
and this:
http://www.rolexforums.com/showthread.php?t=328563