How long will the lume last? Seiko SKX vs Seiko Monster SKX779 

i left them in complete darknes, mayby if there is some sort of light source in the room, even small from window etc result would be better. Seiko is known for great lume and if i will be honest i thought it will last longer too :)

I used it outside in real conditions too, it will last more than hour but you need to charge it with fleshlight or with flash from mobile phone.