Brass watch dial with teal resin and mica infill

Oct 25, 2026 Last reply: 2 days ago 2 Replies
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The idea here is a lovely bit of horological storytelling: a vintage deep-sea diving helmet, ringed by floating air bubbles and tentacles, cut straight into a watch face. Rexx Timepieces started from a plain brass dial blank and turned it into a faceplate that looks pulled straight out of an old diving poster.



The build itself is a clean pipeline. The engraving was done with a 30W fiber laser running a Raycus source, which the maker says handles most of their dial work. The recessed lines were then filled with resin mixed with pigments and mica powder, giving that speckled light teal-green colour sitting against the metal.



The finishing is where the patience shows. The brass got a scrub with soap and a toothbrush, was sanded flat on #1000 grit paper, and went through several sanding stages before polishing. A rod was used to inspect the center hole, which seems like a smart check before anything gets mounted. Final shine came from an epoxy and resin polishing kit, with gloss paste buffed by hand on a polishing block.



The result earns the effort: the turquoise fill and mica shift in appearance as the light changes, and the brass relief pops hard against that background. One open item is the size. It was stated as 31.5mm, but the maker noted the measurement needs rechecking, so anyone copying this should verify their own dial diameter first.



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

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The mica in the resin fill is the choice I keep coming back to. Pigment alone would give a flat colour, but the mica particles catch light at different angles, which matches the stated effect of the dial looking different as light changes. The trade-off is likely speckle control: too much powder and the fine engraved lines could look muddy. Judging by the speckled teal-green result, the mix ratio seems well judged.

A variation worth trying: pour the same resin and mica mix in two passes, a darker base layer and a lighter top layer, so the deeper parts of the helmet engraving read darker than the shallow bubbles. Since the brass relief already stands out against the turquoise, a graded fill could add depth without touching the artwork. A test coupon of a few engraved squares would settle the layer timing cheaply before committing a dial blank.

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