I saw a post on how to mod an ETA movement 'Officine Panerai' text in our forum. It was just using Photo sticker paper(those type where u can peel and sticky on one side) and wording was laser printed on the material.
After which it was then paste on the movement itself. As it was a clear sticker, the wording blends well on the movement. I guess it is quite workable on the dial itself..
Was planning to do it but I would have to measure the diameter of the dial first, then proceed to a sticker shop and get it printed.. Then paste the sticker over it.
Hope this helps to give u some ideas..
Peace.