by E. Delgado
In the early 1980s from approximately 1980-1982, the Rolex patent expired and Rolex stopped engraving "REGISTERED DESIGN" until 1982 where a new engraving appeared "ORIG ROLEX DESIGN"
Until 1979-1980 6.2 million "REGISTERED DESIGN"
From 1980-1982 6.2 million to 7.0 million just the model number engraved.
From 1982 7.0 million onwards "ORIG ROLEX DESIGN"
1.7 million with REGISTERED DESIGN
1.7 mill
6 million case
6.2 million.. no writing other then model no
7.1 million now with ORIG ROLEX DESIGN
