The next stage of the process involves the application of up to 12 coats of transparent lacquer. The lacquer used is a particular type ideal for polishing and consists of solids suspended in a liquid component. After drying, the residual solids form a layer on the dial consisting – among other things – of bonding materials, acrylic and polyester. After each coat, the dials are transferred to an oven for half an hour to allow the lacquer to harden completely. All these processes take place in a cleanroom atmosphere to ensure that the surfaces retain their immaculate high-gloss finish. Just a single speck of dust would destroy the stunning aesthetics. After resting overnight, the dials are flat-polished. “The manual polishing process gives them the desired enamel effect. It creates an impression of considerable depth, although the entire lacquer coating is only 0.1 millimetres thick after polishing,” explains de Nantes.
Dials with totalizers, such as the Pilot's Watch Chronograph Edition “150 Years”, represent a more significant challenge than other models. After lacquering, the outer edges of the subdial are no longer vertical, meaning there is not enough room for the hands of the totalizers. For this reason, after the lacquering process, they are turned with a special tool until the outer edges are once again as sharp as a knife-edge.