The Yema Navygraf Meteorite CMM.10 Limited Edition, in Black or Green

Recently, French brand Yema has expanded the Navygraf series beyond its traditional tool-watch format, experimenting with less conventional materials such as forged carbon and mother-of-pearl for the dial and bezel insert. The latest evolution goes much further back in time. Yema brings a slice of Muonionalusta meteorite, a material estimated to have formed around 4.5 billion years ago in the metallic core of an early planetoid, to the watch. Limited to 150 pieces, the new Navygraf Meteorite CMM.10 pairs this unique dial with a titanium case, matching bracelet, and Yema’s automatic (central rotor) manufacture movement.

The titanium case of the Navygraf CMM.10 measures 39mm in diameter, 11mm thick and 46mm lug-to-lug. It features a vertical brushed finish, with mirror-polished bevels along the lugs for contrast and definition. The 120-click unidirectional bezel features a black stainless-steel insert with a 0–60 minute scale for elapsed-time measurement. A 2.2mm double-domed sapphire crystal preserves the vintage crystal’s curved profile and protects the meteorite dial. At the back, a sapphire display window reveals the CMM.10 movement. The surrounding circularly brushed titanium section carries the individual limited-edition number and serial number. Water resistance is rated at 300m, making it a solid dive watch, just cleaner than the iconic Superman.

For the dial, finished in black or green, Yema uses Muonionalusta, one of the oldest known meteorites, whose iron-and-nickel composition cooled extremely slowly over millions of years, creating the characteristic Widmanstätten pattern that appears once the material is cut and polished. As light moves across the dial, the pattern becomes more apparent or restrained, making each watch visually individual. Against this constantly changing background, the applied hour markers and hands use Grade A BGW9 Super-LumiNova (blue emission). The triangle at 12 o’clock on the bezel insert is also luminescent. A white minutes/seconds track runs the dial’s periphery.

The watch is powered by Yema’s CMM.10, the same manufacture calibre used in the Navygraf Marine Nationale CMM.10, developed with Olivier Mory and assembled by Yema’s watchmakers in Morteau, France. It operates at 28,800 vibrations per hour and provides 70 hours of power reserve, thanks in part to its large barrel. Yema specifies chronometric performance of -3/+5 seconds per day, along with high resistance to magnetic fields and shocks.

The new Navygraf Meteorite CMM.10 is worn on a titanium bracelet, vertically brushed to match the case. It measures 19mm at the lugs and features a folding clasp with a micro-adjustment system.

The Yema Navygraf Meteorite CMM.10 is limited to 150 individually numbered pieces, priced at EUR 2,900 or USD 3,350. More information at yema.com.