SEIKO so called BULLHEAD chronograph reference 6138-0040, Japan around 1970, self winding, screwed down stainless steel case, original bracelet with deployant clasp, bezel with tachometer graduation abraded, 2-coloured dial with luminous indices, luminous hands, day and date, calibre 6138B, 21 jewels, measures approx. 44 x 45 mm, length approx. 18 cm, condition 2-3, property of a collector
