Was asked to do a conversion by my friend Victor Trent on this Invicta quartz he had. I disassembled it and started measurements and planning. I got an NH39 automatic. A quartz-to-automatic conversion of that Invicta, planned after teardown and finished with an NH39 automatic.
Slug invicta-quartz-nh39-conversion
Materials Invicta quartz, NH39 automatic
