The lume on the 5000T is amazing. Here are a few quick snaps I took.
Here is a comparison picture compared with the SUB 750T Sharkhunter.
I was interrupted while taking the comparison picture above and the watches were left on the side for quite a while (a good 10-15mins), and as you can see the 5000T is still glowing like I'd just shone a light on it, where as the SUB 750T is starting to dull down.
To show what both watches are like when first illuminated see the picture below.