ZODIAC self winding gents wristwatch series SST 36000, Switzerland around 1975, unusual stainless steel case including original bracelet, screwed down case back, blue contrast dial with red dot at 4, display of hours, minutes, sweep seconds, day & date, calibre 86 with 36000 A/h, diameter approx. 41,5 mm, length approx. 20 cm, original box, condition 2