That's the rare "mini radial" dial that only appeared 1973-4 which is 10 years after she was born, and the curved hands, matching the early 70s date of the dial. So yes they must have been replaced during a service. Fortunately, or unfortunately, my local AD watchmaker called me one glorious day and said to bring it down pronto, he had a gilt tropical dial for me. But he needed a dial to send in, if he wasn't sending the tropical gilt. I was forced to decide between the Radial and the tropical gilt. I went gilt, and that beautiful Radial dial went back to Rolex. What a shame, I wish I'd had a garden variety matte to send in instead.