ADDIESDIVEAutomatic Diver 200 M Mens Watch Luminescent Mechanical NH35A Analog Stainless Steel

Q: i like the shape of it, is it an off brand of seiko?

It has a Seiko NH automatic movement. That is the only thing Seiko about it. Other than that, it is a straight up Chinese clone of the Seiko Willard seen and made popular in the film Apocalypse Now. A very well made one by the way. This is a quality watch with quality components like a sapphire crystal and a ceramic bezel insert found in much more expensive name brands for over $400-$500.

Q: How strong the lumem and how long does it last?

Sorry for the late response. I had to try it out. Ok. so you probably know that there is lume on the bezel as well as the hands and markers. The bezel lume is blue and the hands and markers are green. I lit the watch up with a UV light at about 10:15 PM and the dial lume was still bright and readable at 5AM. The bezel lume wasn't Hope that helps