October 24, 2026
A Celestial Flagship from Yema
For Yema, the word “Millésime” signals the pinnacle of its craft, and the French brand’s Millésime 2026 limited edition lives up to that promise. Named the Yema Spacegraf Heure Sidérale Tourbillon Volant Limited Edition, this cosmos-inspired watch honors the birthplace of French horology: the Besançon Observatory. Built in 1878, the observatory was established so local watchmakers could set their timepieces by the stars. In homage, the Spacegraf devotes an entire rotating disc to sidereal time. The disc moves in step with the real sky and depicts the stars actually visible overhead.
A Dial Designed to Glow
Hours and minutes are read through two generously sized hands set against a pair of chapter rings. The first is a notched, three-dimensional ring that extends into a circular frame encircling the flying tourbillon. The second is a more traditional railroad-track scale marked with Arabic numerals for the minutes. Remarkably, every one of these components, including the applied 3D ring and the massive appliqués on the hands, is made with Grade X1 Super-LumiNova BGW9, allowing them to glow through their full depth. The celestial disc is fully luminous as well, effectively placing a glowing sky on the wearer’s wrist.
Slim Titanium Case and Manufacture Movement
The case is fashioned from grade 5 titanium and measures 42mm across and just 12.15mm thick. That is an impressively slender profile considering the layered dial, sky disc, and flying tourbillon housed inside. A double-domed sapphire crystal protects the front, while a flat sapphire caseback reveals the CMM.32 Calibre Manufacture Morteau 32. This movement delivers a generous 105-hour power reserve and withstands shocks of 5,000G from any direction. Its plates and bridges are finished in blue, yet another reference to the heavens.
Key Specifications and Availability
Carrying the reference 60.26.32.06.TEL.L6, the watch features a grained dark grey dial with applied three-dimensional Super-LumiNova markings. It also offers a screw-on display caseback, 100 meters of water resistance, and a leather strap. Functions include hours, minutes, the celestial sky disc, and a flying tourbillon with seconds hand. Production is limited to just 150 pieces, each priced at 14,500 EUR. Further details are available on Yema’s official website.
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