Heuer Solunar Ref. 279.603 “Gezeitenuhr”
Very rare Heuer tide watch Solunar 279.603 from 1976. With automatic movement ETA 2790-1 and turning bezel for ebb and flow. This rare watch was only produced for 4 years and was intended specially for seafaring (ebb and flow indicator). Special feature: 2 crowns for date and weekday (bi-lingual). Double weekday display on the inner ring of the dial. For accurate reading of the tides. With black leather strap.