SEIKO 5 Sports intermediate wheel chronograph Speed-Timer, self winding, Japan for the german market around 1970, reference 6138- 0011, stainless steel case including original Omega bracelet reference 1125, screwed down case back, calibre 6138B, central rotor, dial due to age colour tinted/patinated, day & date, 30 minutes- & 12 hour-stop counter, diameter approx. 40 mm, length approx. 21,5 cm, overhaul recommended at buyer's expense, condition 2-3, property of a collector