Double Rhomb NOS 70ies Handwind with Chinese markings

This is the Case Back with the new Double Rhomb Logo
and with a case that is a bit easier to open then the octagonal old case. But with an universal case opener, those octagonal case are not that difficult to open after all.
I was really curious to see what was under the "hood" of those movements that had been inactive for 30 years. And I was very positively surprised. But please see the pages of the back of the watch and the movement to see why I was so happy.