QUICK ANSWER
A dial is the face of a watch that displays time and often features decorative techniques such as sunburst radial patterns, guilloché engraving, enamel finishing, sandwich layered construction, or tapisserie textured grids.

Common dial finishes include sunburst (radial brushing creating light play), guilloché (engine-turned geometric patterns), enamel (fired powdered glass for rich colors), sandwich construction (dual-layer with luminescent lower layer), and tapisserie (grid-like textured patterns). Each finish dramatically affects aesthetics and production cost.
Guilloché is an intricate repetitive pattern engraved on a dial surface using a rose engine lathe—a specialized tool requiring exceptional skill. The precise, mathematically perfect patterns catch light beautifully and are nearly impossible to replicate by machine. Guilloché dials indicate luxury craftsmanship and add significant value.
Yes, enamel dials are more fragile than metal or painted dials—they can crack or chip from impact due to the glass nature of the material. However, they're extremely fade-resistant and maintain vibrant colors for centuries. Their fragility makes enamel dials a mark of luxury requiring careful handling.

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