Eterna

European Watch Clock and Jewellery Fair 1975 BF 152
New, top-of-the-range Eterna models From left to right: extra-flat automatic with 18 carat white gold case, sapphire crystal and calendar ; very flat case in 18 carat yellow or white gold, sapphire crystal ; lady’s model in white or yellow gold, sapphire crystal and ruby cabochon set in the crown. (ETERNA)