than the original cal 48 which was 10.5 lignes 23.6 mm in diameter and 3.8 mm in height.
14 lignes=31.5812 mm a 25 % increase in diameter.
The case diameter of neo vintage Pythagore most often seen is 34 mm. Compared to this new diameter the 39 mm is 14.7 % increase.
So they really made the effort to make the new calibre fit the case of the 39 mm
31.5 mm calibre diameter vs the 39 mm case diameter=7.5 mm difference.
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