Vintage SEIKO 7549-7009 Professional Quartz Divers' watch.
Watch keeps excellent time - battery still runs strong.
Screw down crown, quickset day-date, tight bi-directional bezel in excellent condition (minimal/barely visible scratches), lume still ok, minimal wear on titanium case.
The only drawback is that the dial is somewhat smudged (as you can observe from the pictures).