It's been a while I'm in love with faded Gmt's inserts.... I'm always stunned when I realize how they radically transform a watch.
If I had to keep only one, this would be one of my purple/pink inserts, the nicest of all imho, and I think the rarest.
It's been years I hunt them and from what I know, they all come from watches from the 1966/1968 period, the Pcg gilt/first mat dials era.
On my 1972 1675:
Another purple/fuchsia/pink one fitted on my 1989 16750, unbelievable how many shades it can feature depending upon the luminosity.....
A pepsi Red/blue faded one:
Another Pepsi Red/blue one, with vivid Red and a lighter patina on the edge on the blue side:
Another Pepsi with a dark patina:
A super fat font black faded one:
An orange/light blue faded one: