Omega - Seamaster Quartz

European Watch Clock and Jewellery Fair 1978 BF 334
These two quartz-piloted models have the ruggedness and reliability al
instruments made to last. Left : case water-resistant to 60 m, scratch-
resistant sapphire crystal, day and date calendar. Right : case water-
resistant to 30 m, tempered mineral crystal, calendar.
(OMEGA Seamaster Quartz)