Pictured below is a Eterna, Eterna Matic 1000 5 Star from the 1960s. But after reading about all the fake Eternas out there and going through www.Ranfft.de, I've concluded this watch is either a fake, or a fraken. Maybe I'm wrong. The seller says the watch runs well. What really made me do a double take are:
1. After looking at the caseback, think it might be an aftermarket or later replacement. The engraved model # doesn't look right, lookes like someone did it with a cheap engraver. Think it could be a real Eterna case back, but might not be for the 1000 5 star.
2. The movement looks like a Cal. 1488 (17 jewel, unadjusted), but none of the pictures of Eterna movements I've seen has the markings the way this movement has it. Looks like it could be an ETA 2824 maybe? Not sure.
Would love to get the collective impressions of everyone here though! Thanks for reading my post.