Hi there!
I have a simple question to make. At the bottom of the dial of my OP Date (E series) is written "T SWISS MADE T" which, according to what I know, indicates that the radioactive material Tritium is used on the hands and hour markers for illumination. The Tritium is now very very faint !
When I have my watch serviced, will this be replaced by Luminova or Tritium?
Thank you!

If this is not the right place to ask, please move my question accordingly.