ORIOSA 20 Atmos gents wristwatch in stainless steel, Switzerland around 1970, self winding, screwed down unpolished case, on both sides revolving bezel in blue with 60-minutes- graduation, blue Fume-dial with raised luminous indexes, silvered hands, date, calibre ETA 2873, 25 jewels, time identical rubber strap with buckle, measures approx. 43 x 37 mm, good condition, condition 2