Yema Navygraf Meteorite CMM.10 Limited Edition Watch

Yema has released the Navygraf Meteorite CMM.10, a limited-edition titanium dive watch featuring a dial made from a 4.5-billion-year-old meteorite. The watch is limited to 150 individually numbered pieces.

The watch’s dial is forged from a fragment of the Muonionalusta meteorite, formed 4.5 billion years ago and displaying a unique Widmanstätten pattern after slow cooling in space. This meteorite originated in the metallic core of an early planetoid. After reaching Earth, it experienced several ice ages before being discovered in northern Scandinavia, near the border between Sweden and Finland. Its name comes from the Muonio River region in Swedish Lapland.

Once cut and polished, the meteorite reveals the Widmanstätten pattern, which consists of crystalline bands formed through the extremely slow cooling of iron and nickel over millions of years. No two dials display exactly the same pattern due to the natural arrangement of lines and contrasts in each fragment. The dial surface changes depending on the light, creating visual variations as the wrist moves.

Design and construction

Encased in Grade 2 titanium with a 39mm diameter and 300m water resistance, the watch features a unidirectional bezel, sapphire crystal, and luminous markers for low-light readability.

The case measures 39 mm in diameter, 11 mm thick, and 46 mm lug-to-lug. It features a vertical brushed finish with mirror-polished bevels along the lugs. The watch is part of Yema’s Navygraf series, which has previously experimented with forged carbon and mother-of-pearl for dials and bezel inserts.

The screw-down titanium crown carries the YEMA logo. The applied hour markers, polished hands, and the triangle at 12 o’clock on the bezel use Super-LumiNova BGW9 Grade A with blue emission for low-light readability. A white minutes/seconds track runs the dial’s periphery. The watch is worn on a vertically brushed Grade 2 titanium bracelet, which features a folding clasp with a micro-adjustment system. A sapphire display window on the case back reveals the CMM.10 movement.

Movement and performance

Powered by Yema’s in-house CMM.10 automatic calibre, the movement delivers 70 hours of power reserve, chronometric precision, and resistance to magnetism and shocks, assembled in Morteau using regional suppliers.

The CMM.10 Manufacture calibre is an automatic movement developed and assembled by YEMA in Morteau, France, with development input from Olivier Mory. It operates at 28,800 vibrations per hour (4 Hz) and has an announced accuracy of -3/+5 seconds per day. The movement architecture is based on an asymmetrical mainplate design, with its regulating organs, shock absorbers, escapement, and barrels contributing to smooth operation.

The bridges and mainplates are machined at YEMA’s Morteau workshops. Movement components come from suppliers located in France and Switzerland within a 72 km radius around Morteau, an ecosystem recognized by UNESCO since 2020 for its intangible cultural heritage linked to watchmaking expertise.

Exclusivity and ownership

Limited to 150 individually numbered pieces, each watch includes engraved edition and serial numbers on the case back and warranty card, backed by a five-year warranty.

The surrounding circularly brushed titanium section on the case back carries the individual limited-edition number and serial number. Each watch receives an engraved edition number and a serial number recorded on the warranty card. Yema said: "The Yema Navygraf Meteorite CMM.10 is limited to 150 individually numbered pieces, priced at EUR 2,900 or USD 3,350." A five-year warranty is provided with each watch.

Each of the 150 watches is individually numbered and accompanied by a warranty card recording its serial and edition number.