A Seiko 'Bullhead' Chronograph Automatic stainless steel gentleman's bracelet wristwatch, Ref 6138-0040, circa January 1975, with signed and jewelled 6138B caliber movement, the signed black dial with white baton hour markers, two blue subsidiary dials and day and date aperture at 6 o'clock, the case back detailed '6138-0040' and '519170', the original fishbone bracelet with signed foldover clasp, case diameter 4.4cm.