I found it on a dealer's web page, Watch my Watch, to name it.
This is indeed a quite rare dial configuration, with the aligned wording, which was in production circa 1974 and 1975, as far as I know.
Rail dials can also be seen with the Ref 1665 and 16550.
The Devil is in th détails, and here, this detail makes a beautiful difference.
Best,
Nicolas


