The years 1968 and 1969 saw the introduction of the second execution range of the Carrera family with the launch of the popular "panda dials': The plain "SN" model, without the scale dial, has larger black subsidiary registers than any other versions with contrasting subdials placed on a silvered dial. These models also had shorter black painted markers and black striped hands, as opposed to the plain baton hands and hour markers of the earlier first series editions.

The reference 2447SN "Big Eyes" is not only rare (with around 20 observed) but also beautiful, representing one of the true Carrera grails. The rugged simplicity of these watches is reminiscent of the early Autavia reference 2446 models, which remain a "bellwether" for the aficionado.