Good morning from a sunny Hampshire, England
I'll apologise to those of you that have experience of this type of thing already, and hope you don't mind me explaining what I did!
Following on from very helpful advice and tips from member Knives and Lint, (Cheers mate!), in this thread: https://forums.watchuseek.com/f17/blu...w-3000410.html, I managed to get hold of a swatch of "gels"/"film" to let me try changing the colour of the display on one of my G's, my blue & yellow G-7900-2DR.
I will mention here as I did in the other thread that if any of you guys from the UK want to get hold of one of these Roscolux swatch books, they are available for free, including free postage, from this UK website: https://shop.flints.co.uk/Products/p...tdesc=Roscolux.
I only really have the 7900 which suits a different coloured screen, so decided to try a yellow film to go with the buttons on the watch. I was considering a blue as well, but after holding some blue films above it, found that they tended to make the digits very dark. Although I guess it might look a bit lighter once actually in the watch directly against the module, so may try a blue another time.
It's a fairly simple procedure if you're confident enough to get the module out of your watch, the cutting of the film doesn't even need to be mega accurate as long as it covers the display with no gaps. I traced around the module to get the basic shape and just used a small pair of sharp scissors to do the job. I did find that the films are very thin and managed to get a crease in the first one, they also tend to mark quite easily, and pick up dust and fingerprints like a magnet!! I countered the dust, etc by wearing nitrile gloves, and using a lint free cloth to gently remove any particles.
So the cut film just gets placed between the module and the crystal, no need to remove the facia insert of the watch. I think it looks pretty cool, and just adds something a bit different, here are some pics, hope you like 'em!