Eterna Watch Royal KonTiki 7755.40.50.1289. These watches are unfiltered adventure, absolutely reliable and precise. They are made for all those who go their own way with courage and determination. Like Norwegian Thor Heyerdahl, who crossed the Pacific Ocean in 1947 with his Eterna on his wrist on a simple raft, the KonTiki. Eterna Calibre 3916A