I can remember a few discussions about the luminous material on the non-T dialled Carreras, but I always thought the conclusion was that they were still tritium, and it was only legislation change that forced the move to print the T. Anyway, I bought a Geiger counter a couple of weeks ago and that tells me my Carrera has radium lume. I can’t tell whether it’s just in the hands, just on the dial, or both, but certainly there’s radium somewhere!

Has this been measured and discussed elsewhere ?