I would agree with the prevalence of "wide Ts" on the CBs. But looking at the shape of the polished lyre twist and the undersides of the lug ends has me thinking its a '66HF. A side profile shot would most likely clear things up.
Nice watch though, hands are very clean, so clean that I'm suspicious
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EDIT: Zooming in on the under lugs seems to show the small triangles that I believe are traits of a CB. Hmmm....now going to grab my CB to compare......
Click to expand...