Pretty sure this is the only one of these out there. Started out as a Heimdallr SKX007 homage automatic diver... NH35 (4R15) movement can be handwound and hacked. Stainless steel case water resistant to 200m, sapphire crystal. Solid stainless steel bracelet with flip lock clasp. Overall mint condition - I really don't see any scratches, and I only wore it for a few days to make sure it was running properly (it is).
Light silver dial with applied luminous indices. MarineMaster style hand set is of very good quality... they are faceted, with proper brushed and polished surfaces. Not quite the same quality as the genuine Seiko MM hands, but not far off. Lume on dial and hands is great, just not quite to the blazing level of OEM Seiko lume.
Overall, this is a super clean, great looking watch... It's the MarineMaster I always wished Seiko would make (but my wallet is glad they haven't - yet). This one is wallet-friendly: $315, shipping within the US included.