Most solar watches treat their photovoltaic hardware as something to conceal. The Mondaine Doppio Solar Skeleton reverses that logic, cutting a circular opening through the dial so the solar cells gathering light become part of the composition.
The watch retains the Doppio collection’s double-line hands and indexes, but the exposed cells give its precise Swiss geometry a more technical character. A concave dial slopes toward the opening, while a double-domed sapphire crystal adds another layer of depth above it.
The polished 316L stainless steel case measures 41 mm across and just 7.5 mm thick. Despite the Skeleton name, no mechanical gears are competing for attention; the visible component is functional, flat, and neatly integrated into the dial. It is a substantial evolution of the Doppio Bauhaus design rather than a cosmetic dial variation.
Natural and artificial light charge the Ronda 215 solar-quartz movement’s MT920 rechargeable cell. Once fully charged, the watch can run for up to eight months in darkness, reducing the need for conventional battery replacements. A date window, 50 meters of water resistance, and anti-reflective treatment on the sapphire crystal support everyday use. The black vegan grape-leather strap keeps the otherwise monochrome design restrained and limits the watch to 43 grams.
The leather-strap Mondaine Doppio Solar Skeleton is available now for $465. A second version pairs an IP gun-finished 316L stainless steel case with a matching mesh bracelet; it weighs 85 grams and costs $495.
