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Premium mechanical in-house caliber designed and manufactured in our workshops in Morteau (France). All other components are sourced from Switzerland within a 70km radius of Morteau. Assemblies, calibrations and checks carried out by our watchmakers in our Morteau workshops.
International shipping is offered free-of-charge for purchases as from 100€. All our shipments are handled by our partner DHL. You will receive an email with the parcel tracking number the day your watch leaves our workshops in France. Upon receipt of DHL's email, note that you have the option to adjust the parcel's delivery address and/or defer the date of receipt of your package, if necessary.
Your timepiece enjoys a 5 year international warranty from the date of shipment. It does not cover any damage on any part of the watch resulting from abnormal use, lack of care, negligence, accidents and incorrect usage.
If you change your mind you have the possibility to request a refund within 14 days of receipt of your purchase. To proceed, please contact us through our 24/7 online chat on Yema.com by providing the email address used when ordering.
For any pre-sales or after-sales questions, our multi-lingual customer representatives are available 24/7 through online chat on Yema.com.
ANCIENT METEORITE. ENGINEERED IN TITANIUM.
Before Earth was fully formed, the material now set into the Navygraf Meteorite CMM.10 was already cooling in space. Muonionalusta, one of the oldest meteorites known, formed around 4.5 billion years ago in the metallic core of an early planetoid.
Limited to 150 individually numbered timepieces, the Navygraf Meteorite CMM.10 pairs a dial made from this ancient material with a 39mm titanium case and matching bracelet.
Titanium brings low weight and corrosion resistance, while Muonionalusta brings a natural crystalline pattern formed as the meteorite cooled over millions of years in space. This pattern varies throughout the meteorite, making every dial unique.
000/150 LIMITED EDITION
TWO FIRSTS FOR THE NAVYGRAF
Limited to 150 individually numbered pieces, this edition marks two material firsts for the Navygraf: a construction made entirely from titanium and a dial made from Muonionalusta meteorite.
The Navygraf’s clear hour markers and purposeful proportions preserve its professional dive-watch character. Its 120-click unidirectional bezel features a black stainless-steel insert with a full 0–60 minute scale for precise elapsed-time measurement.
A METEORITE PATTERN THAT CANNOT BE REPLICATED
Deep within its ancient parent body, iron and nickel cooled and crystallised over millions of years. This exceptionally slow process created the Widmanstätten pattern, a geometric lattice of crystalline bands that no furnace on Earth can reproduce at the same scale. The structure is a natural record of Muonionalusta’s extraterrestrial origin.
Cut and polished, Muonionalusta reveals the full Widmanstätten pattern, the characteristic that makes this meteorite so prized in watchmaking. Its crystalline bands vary in density and direction throughout the material, appearing finer in some areas and broader in others. No two finished dials carry the same arrangement of crystalline lines.
As the wrist turns, light draws out different parts of the lattice, shifting the pattern from subtle to pronounced. The polished applied hour markers and hands stand in sharp contrast against this changing surface, preserving the Navygraf’s immediate legibility.
Each dial is a fingerprint four and a half billion years in the making, unique to the watch that carries it.
39MM TITANIUM CONSTRUCTION
The 39mm titanium case measures 46mm from lug to lug and 11mm thick, giving the Navygraf Meteorite CMM.10 compact, balanced proportions. Its curved profile allows the watch to sit naturally against the wrist across a wide range of wrist sizes.
Vertical brushing across the case is contrasted by mirror-polished bevels along the lugs, bringing definition to its geometry. Titanium’s low weight and resistance to corrosion make it well suited to daily wear and marine environments.
A 2.20mm double-domed sapphire crystal protects the dial while preserving the curved profile of a vintage watch crystal.
The sapphire display caseback reveals the Manufacture CMM.10, delivering chronometric precision and a 70-hour power reserve, while preserving the watch’s full 30 bar (300m / 990 feet) water resistance.
Its circularly brushed titanium surround carries the individual limited-edition number (000/150) and serial number, also recorded on the five-year warranty card.
TITANIUM DIVER BRACELET
Manufactured entirely from titanium, the bracelet measures 19mm at the lugs and mirrors the case’s vertically brushed finish while keeping the watch light on the wrist.
Its folding clasp incorporates a micro-adjustment system for more precise sizing at the wrist.
Grade A BGW9 Super-LumiNova is applied to the hour markers, all three hands and the bezel triangle at 12 o’clock. Against the meteorite dial, the display remains clear by day and emits a cool blue glow after dark.
CHRONOMETRIC PRECISION
-3/+5 seconds per day chronometric performance and high resistance to magnetic fields and shocks.
70 HOURS POWER RESERVE
Increased power reserve thanks to a large barrel allowing optimized winding while preserving a frequency of 28,800 A/h (4Hz).
OPTIMIZED ARCHITECTURE
Ingenious mainplate’s symmetrical architecture with high quality regulating organs, shock absorbers, escapements and barrel.
FRENCH MANUFACTURE
Designed, manufactured, assembled and calibrated by YEMA's watchmakers within our Morteau workshops in France.
LOCAL PRODUCTION
Over the past few years, YEMA has made significant investments aimed at insourcing a good part of its production and constantly improving the quality of its manufacturing processes by implementing latest equipment as well as expanding and modernising its workshops and production lines. In addition, YEMA now works with new local partners in France and Switzerland within a range of 72km of its workshops, to secure a more responsible and higher quality production.
Fully conceived and designed by YEMA watchmakers, the CMM.10 caliber components are manufactured in France and Switzerland within a range of 72km from Morteau by recognized craftsman in fine watchmaking. The caliber bridges and mainplates are manufactured in YEMA’s workshops in Morteau where final assembly of all components takes place.
France
France + Switzerland
France
A DYNAMIC REGIONAL WATCHMAKING ECOSYSTEM
YEMA workshops are based in Morteau, the cradle of French watchmaking, a few steps from the Swiss watchmaking region. This cross-border watchmaking community concentrated along the Jura mountains has gradually transformed into a true regional ecosystem recognized as Intangible Cultural Heritage by the UNESCO in 2020.
CALIBER
CMM.10 Manufacture Caliber
28 800 A/h | Automatic | Chronometric precision | 70h power reserve | Hours, minutes, seconds
BEZEL
120-click unidirectional rotating bezel with a black stainless-steel insert and 0–60 minute graduation.
White minute markers and a triangular marker at 12 o’clock treated with Grade A BGW9 Super-LumiNova.
CASE & CRYSTAL
Material: Vertically brushed Grade 2 titanium with mirror-polished bevels
Diameter: 39mm
Thickness: 11mm
Lugs: 19mm
2.20mm double-domed sapphire crystal
Caseback:
Sapphire display caseback with a Grade 2 titanium surround.
Individual limited-edition number (000/150) and serial number engraved on the surround.
DIAL & HANDS
Genuine Muonionalusta meteorite dial. Every dial carries a unique natural crystalline pattern.
Polished applied hour markers and hands.
Hour markers and all three hands treated with Grade A BGW9 Super-LumiNova.
STRAP
Vertically brushed Grade 2 titanium bracelet measuring 19mm at the lugs.
Grade 2 titanium folding clasp with micro-adjustment system.
CROWN
Polished Grade 2 titanium screw-down crown with embossed YEMA logo.
WATER RESISTANCE
30 bar | 300m | 990 feet
MUONIONALUSTA: ONE MILLION YEARS IN THE ARCTIC
Muonionalusta takes its name from a place on the Muonio River in Swedish Lapland, around 140 kilometres north of the Arctic Circle. The meteorite is believed to have fallen in northern Scandinavia roughly one million years ago, where its fragments passed through successive ice ages.
The first known fragment was discovered by chance in 1906 near the village of Kitkiöjärvi. Further fragments have since been recovered across an area measuring roughly 25 by 15 kilometres, close to the border between Sweden and Finland.
Searching this remote ground is governed by the seasons. Snow and winter darkness prevent searches for much of the year, leaving the brief Arctic summer as the most practical opportunity for recovery. Even then, the wet ground and isolation make every search difficult.
That history is part of what you wear: a material formed beyond Earth, carried through successive ice ages and recovered from the Swedish Arctic almost one million years after it arrived.
A material this rare doesn't go into a dial without being verified first. Each Navygraf Meteorite CMM.10 comes with a signed Certificate of Authenticity that confirms the authenticity and provenance of its Muonionalusta meteorite dial and records details specific to the timepiece.
A material this rare doesn't go into a dial without being verified first. Each Navygraf Meteorite CMM.10 comes with a signed Certificate of Authenticity that confirms the authenticity and provenance of its Muonionalusta meteorite dial and records details specific to the timepiece.
In our commitment to quality, all timepieces equipped with a mechanical YEMA Manufacture movement enjoy an extended International Warranty period of 5 (five) years.
Each watch comes presented in an elegant watch box crafted from brown lacquered wood, featuring a soft suede-like interior. The box includes a watch pillow, a dedicated storage space for the warranty card, and a protective black outer box.
With your first purchase you become a member of YEMA's loyalty program YEMA Privilege. Enjoy exclusive offers and discounts that increase in value as you move up the tiers, free shipping, 24/7 Customer Service and 5 Years International Warranty.
DISCOVER
In our commitment to quality, all timepieces equipped with a mechanical YEMA Manufacture movement enjoy an extended International Warranty period of 5 (five) years.
Each watch comes presented in an elegant watch box crafted from brown lacquered wood, featuring a soft suede-like interior. The box includes a watch pillow, a dedicated storage space for the warranty card, and a protective black outer box.
With your first purchase you become a member of YEMA's loyalty program YEMA Privilege. Enjoy exclusive offers and discounts that increase in value as you move up the tiers, free shipping, 24/7 Customer Service and 5 Years International Warranty.
DISCOVER
