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Horological Meandering

30CH?

 

Most of the 60's & early 70's models that came in that shape case had a sunburst brushed finish on the top (radiating as if from the center of the dial) and polished facets on the sides and lug ends, and sometimes the case sides had vertical brushing.

Are you sure it's a 30CH inside? I don't recall that style of case before the early/mid 60's and by that time Longines was using the Valjoux 72 (rebadged as the caliber 330 or 332). What is the case serial number and the movement's serial number?

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