First Rolex

[ericandrew]

I need some help from the local experts on my recent purchase. I bought this from a local store who was a long time Rolex dealer but no more. They only service Rolex but sell other brands. They bought it from the original owner who they sold to in the late 70's. They serviced it by replacing the main spring, crystal, gaskets and maybe crown. There was no band. Its marked as a 5313 with a serial # of 5.55 million putting it as a 1978.

Hopefuly these pictures will give enough information.