SEIKO gents wristwatch with chronograph in steel, Japan around 1975, self winding, reference 6138-3002, screwed down case, mineral glass, original stainless steel bracelet, blue/green Fume-dial, luminous indexes & -hands, 12-hour- counter at 12, 30- minutes-counter at 6, day & date at 3, rhodium plated movement calibre 6138B with intermediate wheel, 21 jewels, diameter approx. 42 mm, length approx. 21,5 cm, overhaul recommended at buyer's expense, condition 2-3, property of a collector