this Model is not so early, because the Master already left long ago the boat when it was first produced!
The early models was produced only in gold and mainly with handwounded Lemania movement, they were mainly chronos.
But I agree with you: all DR watches has her own charme, regardless of their production date, except the ones which were produced by Bulgari under the name of “Bulgari-Roth”.
Then it was the end of the brand!
Truly yours,
Adam