Seiko "Pogue" 6139-6002 nice and very well preserved in original condition case and bezel. Original crown and pushers. 
Black R Dial in very good condition, no spots or fades. 
Movement working fine, chronograph start and reset correctly, inner rotating bezel working properly. Not serviced or guaranteed for timekeeping.
Not waterproof guaranteed.
New NATO strap, no bracelet.
Please check carefully the photos, are part of the description.