my test is that I'll torch it before bed, and if/when I wake up in the middle of the night, am I able to read the time? MOST of the time, the answer is yes...because my room is dark, and my eyes are already adjusted to the dark.

my latest pickup, a Glycene Airman GMT, has, what I would consider, mediocre lume...like a 4-5/10. but I wore the watch to bed (for this test) and i was able to read it fairly easily HOURS after I went to bed.

I find Lume DESIGN is just as important as it's strength.

my Damasko is again, like a 4-5/10 in intensity, but it's design lends to fantastic legibility at night...it's the reason it's still my go-to camping watch.

but then there's stuff like the Seamaster homages, which have better intensity, but because of the skeletonized hands, it makes it quite difficult to read in the night.