ETERNA gents wristwatch Kontiki 1958 reference 1571.41, self winding, Switzerland 1990`s, stainless steel case including neutral bracelet, screwed-down case back & winding crown, display of hours, minutes, sweep seconds & date under sapphire loupe glass, second-stop at hand-setting, 25 jewels, calibre ETA 2824-2, diameter approx. 37 mm, length approx. 19 cm, orig box (defect) & users manual, condition 2, property of a collector