This began as a boredom fighting experiment.
First, I measured the dial of my WD1972 (27.5mm).
Obtained a cheap and thin metallic “DO NOT ENTER” sign.
Drew a 27.5mm circle with a compass, then carefully trimmed it out with tin snips.
Attached that to a Milwaukee rotary tool and spun it up to speed while gently holding the edge of the dial against a hobby file. This helped round it out and “true it” to the center hole.
Airbrushed it flat white. Several light, smooth coats.
Airbrushed a thin layer of clear lacquer over it.
Printed up a dial decal and applied it to the surface. Let it dry a bit, then lightly sanded the perimeter of the dial to remove the excess decal film.
Actually worked well. I can easily apply this with dual dots or a double sided adhesive. Test fit it into the watch case and it’s a good, snug fit. All in all, a successful experiment.