OMEGA big gents wristwatch series Seamaster, self winding, Switzerland around 1973, reference 166.171, stainless steel case including original bracelet with deployant clasp, case back with sea horse logo 4-times screwed down, blue dial with raised indexes, display of hours, minutes, sweep seconds & date, movement copper coloured, calibre 1012, measures approx. 44 x 38 mm, length approx. 19,5 cm, omega Serviceetui enclosed, condition 2, property of a collector