Tauchmeister T0047 Automatic 1000 meter diver.
Best deal on EBay! they can be found in different dial colors and different depth ratings too.
It's lume falls between a nice citizen and a nice Seiko. Very visible in the dark.
I removed the rubber strap and put it on a NATO band straight away since I don't care for rubber straps.
It is more comfortable on the wrist than I thought it would be because of its size and weight, but it feels right at home!
This thing is very overbuilt I would still be tempted to send it out for a nice triplock crown conversion and Sea-Dweller flush style Helium valve to finish it off.
It comes with the Citizen/Miyota automatic which some people prefer over the Seiko because it can be hand wound.
I think the Seiko 4-oclock crown movements would fit this too but I won't know until I try.
I am actually quite happy with it just the way it is so I'll put some hours on it before I think about customizing it.