Raised guilloché dial with colour-shifting paint

Oct 15, 2026 Last reply: 42 seconds ago 3 Replies
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The toughest part of this dial has to be keeping the markers and track proud of the surface while the rest gets carved away. The maker handled it by working from a grayscale image and using a 30w fiber laser with a raycys source to remove the surrounding metal, leaving the hour markers, minute track and little star standing as part of the dial itself. That spiraling guilloché texture radiating from the center is the result, and it looks remarkably clean for something done by ablation.



The sequence behind the Chameleon reads like a proper small-shop workflow. After engraving the pattern, indices and central star into a round metal blank, the central hole was deburred with a miniature round file, the face was hand-sanded with a blue sanding stick, and everything got a wash with a small brush and soapy water. Then a black base coat went on in a spray booth, chameleon paint was sprayed over it, and the raised areas were sanded with a block while wearing finger cots until the polished metal showed through again.



Plenty of small decisions stand out. The double baton at twelve gives the layout a focal point, the applied four-pointed star sits nicely between the center hole and the twelve marker, and the integrated silver-tone rim carrying the minute track frames the whole face. The central cutout with its silver-tone border keeps things tidy around the hand pinion. The colour shift itself, deep blue rolling over to purple as the viewing angle changes, is the payoff for all that careful layering.



One open thread: the maker asked whether anyone has tried colour-shifting paint over a laser-engraved texture, so clearly the paint-over-engraving combination is still being explored. Since dials get cut in different sizes as needed, it will be interesting to see where this approach goes next.



Project by Rexx Timepieces. Watch it on their YouTube channel:

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Sanding the raised areas back to bare metal after painting seems like the smartest call in the whole build. It gives polished silver markers sitting inside that blue-to-purple shift, which is a strong contrast. My only thought is that it must demand a very light touch, since going too hard near the edges could scuff the sprayed colour. The finger cots suggest the maker knew that going in.

I would love to know more about how the grayscale image was turned into the engraving itself. Was the image used directly to drive the depth of the metal removal, or was there extra preparation before it reached the laser? Getting a guilloché pattern that spirals evenly from the center out of a grayscale source sounds like the kind of step where small setting choices would show up badly on the finished face.

Since the maker already cuts dials in different sizes as needed, a larger version of this same design could be worth trying. A wider face would give the spiraling guilloché more room to breathe and let the blue-to-purple shift play across a bigger area as the dial tilts. Keeping the same black base coat underneath would make it easy to compare how the colour reads at different scales.

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