PlainVanilla
·I haven't seen one like this before.
The coat hanger 'S' is an early style, the pencil hands are a later style, I suspect this might not be correct
All the Seamaster Devilles until the end of 1962 had a coat hanger "S" and pencil hands. This watch is particularly interesting because it's a kleerback (it has an exhibition case back). If this dial is correct, it means that they produced kleerbacks with unusual dials and that would be an interesting (but hard) find.