With the Fifty Fathoms 70th Anniversary Act 1 reference 5010A/B/C-1130-NABA Blancpain offers a long awaited new size for the iconic dive watch. I now had the opportunity to have all three sizes ready for a photo session, so let’s compare this new 42.3mm Fifty Fathoms to its siblings in 40.3mm and 45mm with a similar basic aesthetic code.

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