Merry Christmas all, I recently came across a Hampden,John Hancock model with a John C. Dueber dial. Is this correct or is it a replacement form the same time period?

Mario,

It's a lot easier to answer the question with a serial number and two photos... one of the front and one of the movement. (shrunk to 640X480)

I have a copy of an 8-1/2 X 11 blue covered book called "The Hampden Watch Co"

This book has a ton of photos of Hampden dials and shows or describes the movements they were found on.

The Dial is more likely to be on a John Deuber Signed Movement.