Hand-painted dial

A hand-painted dial is not a photographic print or a decal: it is paint applied directly onto the surface with miniature brushes, layer upon layer, often on supports no larger than two centimeters in diameter. The distinction matters because it changes everything — the response to light, the perceived depth, and the fact that no two pieces are identical.

Techniques vary radically depending on the support and the desired result. On porcelain — as in the Credor dials produced at the Micro Artist Studio — the indices are painted before kiln firing, then the piece returns to the artisan's hand for a second application in gold, then back into the kiln. Heat stabilizes the pigments but introduces variables that cannot be completely controlled: this is why certain enameled dials require as many as twenty kiln passes, as happens with the fondant de Genève, the traditional Genevese enamel that is applied in successive layers and finished with a transparent coating that provides brilliance and protects the entire surface.

On standard metal dials, the logic changes: here the artist works cold, layering color glazes to build shadows and volume that at such a reduced scale are read almost only with a loupe. Pointillism applied to dials — small dots of varying color and size, placed one by one — produces an effect that at normal distance gives a uniform chromatic field, but under magnification reveals an almost textile structure. I have seen it applied on polished steel dials: it holds up surprisingly well over time if the piece is not exposed to humidity.

UV-reactive varnishes belong in a separate category: they are not visible in normal light and reveal additional details only under ultraviolet lamp. A recent technique, born from customization work, with variable results in terms of long-term durability — I do not have sufficient data to speak with certainty on this point.

The work on the Montblanc 1858 Geosphere — northern hemisphere hand-painted, approximately four hours per piece — gives an idea of the relationship between subject size and execution time. At those scales, four hours is very little. On complex enameled work, we are talking about days.

From my bench I often see dials presented as hand-painted that are actually prints with a final layer of varnish applied manually. The difference is noticeable: true painting has irregularities in thickness that catch the light differently depending on the angle.