3646 caseback classification (Type D – G)
by Volker on Apr.27, 2011, under General
An example of our classification work: The reference 3646 is divided into seven production groups (Type A – Type G), different caseback markings and numbers are important indicators.
The illustration shows the following caseback versions:
Ref. 3646 / Type D Brevetee Rolex S.A.
Ref. 3646 / Type E (plain / only number)
Ref. 3646 / Type F Brevetee Rolex S.A.
Ref. 3646 / Type G (plain / only number)
You can read and see more about the different versions of Ref. 3646 watches in our 2nd book “Vintage Panerai – The References”. Find the illustrations of ref. 3646 / Type A – C casebacks here.