Swiss Ronda 763 Quartz
Slim, precise and close to maintenance-free, with roughly forty months of battery life and an 8.5 mm case profile. Finished with a solid titanium caseback, individually etched with your details.
€999

WHITE DWARF ENAMEL · BLACK DLC TITANIUM
Light held inside shadow.
Lunar Eclipse sets an ultra-white, stone-like enamel dial within black DLC Grade 5 titanium. It is the collection's most graphic contrast: moonlight contained by a dark, hand-finished horizon.
From €999 quartz · €1,199 automatic
Explore upcoming production windows
Configure this Lunar Eclipse →Or reserve for €99 — credited toward your watch ↗
Made to order: production takes about 2–3 months for 40 mm and 3–4 months for 34 mm, and the dispatch window shown at checkout applies. Shipping speed applies only after your watch is finished. Launch offer: VAT, local taxes, import duties and worldwide shipping are all included in the price.
Live 3D previewClick to rotate and zoom · scroll passes through to the page
ONE SKY. ONE DIAL. NEVER REPEATED.
We calculate the visible stars and constellation geometry for your coordinate, date and local time from astronomical data, then engineer that sky as production artwork for your chosen dial size. A dedicated pad printing cliché is produced for your watch alone.
The map is transferred by precision pad printing, the process used for fine detail on high-end dials, then completed through a four-stage print-and-lume process: the initial precision print followed by three registered applications of Swiss BGW9 Super-LumiNova. No two ChronoAstra dials carry the same sky.
See how your dial is pad printed →
ULTRA-WHITE ENAMEL
The White Dwarf dial carries more nuance than flat white. Subtle stone-like visual movement gives the enamel depth, while the personalized constellation map moves between visibility and near-disappearance as the viewing angle changes. Against the black case, every polished hand, index and celestial point feels sharper, quiet detail held inside a bold silhouette.
The exact sky from your chosen moment is individually prepared and pad printed with fine registration. BGW9 Super-LumiNova introduces a cool blue glow after dark, transforming the white daytime character into something distinctly celestial.

THE MATERIAL ITSELF


Pure white enamel.
Every Lunar Eclipse begins with this surface. The blank is inspected, then the sky of your exact moment is precision pad printed onto it and completed with three registered applications of Swiss BGW9 Super-LumiNova.
BLACK DLC GRADE 5 TITANIUM
Lunar Eclipse begins as solid Grade 5 titanium, with hours of brushing and hand mirror polishing across dozens of case and bracelet surfaces. Black DLC is applied only after that geometry has been resolved. The finish adds enhanced scratch resistance while preserving tonal distinctions between satin flats, polished bevels and recessed details.
The same Grade 5 titanium architecture is brushed and mirror-polished by hand before receiving its black DLC coating. The coating adds enhanced scratch resistance without erasing the finishing beneath it: satin planes, polished bevels and recessed surfaces remain visible as subtle shifts between graphite, ink and reflected light.



WHY THIS PAIRING
Black and white make the personal starmap the entire point. Lunar Eclipse is direct from across the room, but its tonal sky and hand-finished surfaces reward a much closer view.
CHOOSE YOUR MOVEMENT
Slim, precise and close to maintenance-free, with roughly forty months of battery life and an 8.5 mm case profile. Finished with a solid titanium caseback, individually etched with your details.
€999
24 jewels, 28,800 vibrations per hour and approximately 42 hours of reserve, with a custom Côtes de Genève rotor visible through a sapphire display back.
€1,199
YOUR MOMENT, FOREVER ETCHED
Your exact date, time, coordinates and chosen word are individually etched into the caseback. The reverse of every Lunar Eclipse carries the coordinates, date and local time of your moment, plus up to twelve capital characters of your own text: a name, a place, a single word. It is etched into the titanium, not printed on it.
Quartz builds receive a solid titanium caseback. Automatic builds receive a sapphire display back, with your individually etched details framed around the movement.
ONE OF ONE
The configurator opens with the White Dwarf dial and Black DLC Grade 5 Titanium case already selected. Choose your movement, size and strap, then define the exact sky of your moment.
Configure this model →Not ready? Reserve for €99 — credited toward your watch ↗
Made to order: production takes about 2–3 months for 40 mm and 3–4 months for 34 mm, and the dispatch window shown at checkout applies. Shipping speed applies only after your watch is finished. Launch offer: VAT, local taxes, import duties and worldwide shipping are all included in the price.