Caliber561
·The lettering saying the brand name appears to be raised, printed heavily on the surface of the dial. After that was printed on, the dial would have been lacquered, as lacquer is usually the top coat. Depending on the lacquer used, it can sometimes – not always – cleaned off. But once you get to the lettering you have a problem, ditto the minute track. So you have to leave the lacquer in place in those areas and this can look a bit rubbish. The printing ink and lacquer are different materials and you'd be very lucky to remove one without damaging the other. Not sure what "solvent" you are imagining. Commonly, people refer to acidic solvents such as citric acid and this would be in solution with water. Some dial printing inks are water soluble, some not.
The indices are not part of the conversation.
http://omega-constellation-collectors.blogspot.com/2007/12/pie-pan-story-with-fairytale-ending.html
There are a number of threads on this on OF as well.
Also, the Centenary models have the lacquer on top of the printing. My Centenary has the lacquer on top as well. This is a fact, not a possibility.
This is not necessarily going to be an easy task – I know that. But immediately writing off the dial as a total reprint is an obvious option that I was already aware of. When I asked for advice, I wanted to know if anyone had any recommendations or personal experience with a dial restorer using this process. I don't need you to tell me that the only possible option I have is to completely trash the dial. Worst case scenario, the more painstaking restoration process doesn't pan out, and I'll have to get a total reprint anyways. However, I would like to use a service that forum members have experience with instead of just going in blind.