I just bought this, have no idea what it is

Couple of days ago i pulled the trigger on this one from a fellow norwegian watch collector. I felt it was a good deal at 300$ and the watch is pretty nice regarding the mechanical and visual condition. It will need a service to run really good like any other cheap auto. ( i have no idea if 300$ is a good deal, but i went with my gutfeeling..)

I do know Eterna made a bunchload of these KonTiki's to comemorate the great norwegian Thor Heyerdahl (1914-2002) when he crossed the pacific ocean on the raft which was called Kon-Tiki in 1947. as far as i know, they still use the name on some of the Eterna watches.

Besides that, i dont know anything about eterna as a watchmanufactorer, nor anything about this model. If anybody could give me some pointers i would be greatful. I cant seem to find much relevant info when i google it..


edit: pics doesnt do this watch justice, its in way better condition than portrayed here. Lousy Iphone pic...

Let's see the medallion

medallion is missing. im searching for a new caseback

it's a great watch
i have quite a few.
Including the 1st edition.
But the medallion is the focal point of the watch.
Finding one will be impossible. Never seen one
in daily review of ebay Eterna for over a year

its pretty big to be of that era (70'-80's?) around 38mm excl crown.
So finding casebacks for these are pretty tough, hmm..

Will any medallion fit, are they one size?
I might buy a beaten up one just to have the caseback correct.

If i take a pic with the caseback off, is there anything more you could enlighten me with regarding this model?

Anyway, here is:
Mvt stamped 1424 UD, and "brevet"
Mvt # 5304048
Caseback stamped 130TT

You found the trademark 5 bearings😀
Eterna patented the first bearing Full rotor
This company co-founder ETA.
The company that manufactures movements
for Many high end watch brands.
Of course Eterna had theirs built extra special by ETA
Your serial
1966 5 250 000
1967 5 400 000