Rolex Submariner ref.5512/5513 from 1967

beautiful 5513 dial fitted in a older 5512/5513 case, probably service dial. watch is fitted with a 1960s rolex buckle.  Caseback is marked 5513 (67) which correspond with the serial production numbers on the mid case  1,751,609 from the 1967. Patina on dial is nice looking and original. 

watch is keeping time, sold as is!