Gűbelin gold watch help

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Found this today. Can't seem to find anything on this particular one I'm familiar with the brand but lost on this piece
 
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Gubelin was, and remains, as you may know, a retailer. As is the case with the watch you have shown, they typically sourced high-quality base movements from other manufacturers, and finished them in-house. This is an Eterna movement, though I am not sure of the caliber.

Judged by the funky case design, the watch was likely manufactured in the late '60s or early '70s.
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