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UNIMATIC and Massena LAB are proud to present the third and final chapter of their NASA Space Exploration trilogy: The Modello Quattro U4S‑T‑SPW. Crafted in Italy from lightweight titanium with a special Cerakote™ H140 bright‑white coating, the 40mm case houses a genuine meteorite dial. Each dial is cut from a fragment of an ancient iron‑nickel meteorite, a material forged in the vacuum of space over millions of years, traveling through the solar system before falling to Earth, where it was eventually recovered and meticulously prepared for horological use.
Its distinctive surface reveals the Widmanstätten pattern, an interlacing crystalline structure that forms only during the slow cooling of molten metal at a rate of just a few degrees per million years. These intricate lines, created light‑years away from our planet, ensure that no two dials are ever alike. Each timepiece becomes a literal slice of cosmic history, carrying with it the story of its journey through time and space.
Above the dial, the Super‑LumiNova® BG W9 markers and NASA "worm" logo are printed directly onto the 2.8mm flat sapphire crystal, creating a floating effect that adds depth and visual intrigue, giving the dial a distinct space‑inspired character.
The release of the U4S‑T‑SPW follows two preceding collaborations with Massena LAB launched to celebrate NASA’s Artemis missions, the U1-SPG “NASA Artemis” and UT4-SPT “NASA Artemis II” limited editions. NASA’s upcoming missions, marking a renaissance of space exploration, will mark the first crewed return to the Moon since the Apollo program ended in the early 1970s. Looking ahead, these missions aim for a more ambitious (and historic) goal: sending the first astronauts to Mars.
The U4S‑T‑SPW is built for professional performance with water resistance individually tested to 30 ATM (300m / 1000 ft). Its titanium case is paired with an 8mm screw‑down crown and a case back engraved with a detailed meteor comparison chart. Inside beats the Swiss‑made Sellita SW200‑1 b automatic movement, operating at 28,800 bph with a 38‑hour power reserve, 26 jewels, hacking seconds, and accuracy within ±12 seconds per day.
Each watch is delivered on a white nylon keeper two‑piece quick‑release strap with a titanium Cerakote™‑coated buckle, along with a cool‑gray TPU strap. Limited to just 60 pieces, the U4S‑T‑SPW will be offered exclusively at Geneva Watch Days 2025.
Free U.S. shipping.
Features
Technical Details
Modello Quattro U4S‑T‑SPW.
Movement
Sellita SW200‑1 B automatic movement. 28,800 bph. 38‑hours of power reserve. 26 jewels. Hacking seconds. +/- 12 seconds per day.
Functions
Hours, minutes, seconds.
Dial
Iron-nickel meteorite with classic NASA "worm" signature on crystal. Luminous hands.
Case
Titanium case coated with Cerakote™ coating, in bright white. 40mm case. Alchemical sun 8mm screw-down crown.
Crystal
2.5mm thick flat sapphire. Anti-reflective coating on interior side.
Bracelet
Delivered with two straps: white nylon with nylon keeper with Cerakote™-coated buckle, and space gray TPU.
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HIGHLIGHTS
Meteorite dial with Widmanstätten pattern, an interlacing crystalline structure that forms only during the slow cooling of molten metal at a rate of just a few degrees per million years.
Classic NASA "worm" and other markings etched into the sapphire crystal.
Anti-corrosive Cerakote™ coating, ideal for protection against harsh environments and widely used in the aerospace industry.
Swiss-made automatic movement. -
GENUINE METEORITE
Each dial is crafted from authentic fragments of the Gibeon meteorite—unlike other dials that merely claim meteorite provenance, these are cut from genuine slices of the Gibeon meteorite, the real deal.
The Gibeon meteorite field, named after the nearby town of Gibeon in southern Namibia, represents one of the most significant meteorite discoveries in human history. What makes Gibeon meteorites extraordinary is their remarkable 4-billion-year journey through space—older than most rocks on Earth itself.
When properly prepared, each Gibeon meteorite dial reveals the breathtaking Widmanstätten patterns—intricate geometric crystalline structures that formed over millions of years as the meteorite slowly cooled in space. These naturally occurring patterns are impossible to replicate artificially and serve as an unmistakable signature of authenticity.
Unlike terrestrial materials, each Gibeon meteorite dial is inherently unique—no two pieces display identical patterns. This scarcity, combined with the finite meteorite supply and complex preparation process, makes these dials among the most exclusive materials available for luxury timepieces.
EXCLUSIVE ILLUSTRATION
Each watch will be delivered with a tote bag featuring an exclusive illustration of the U4S-T-SPW by acclaimed artist and designer Lee Yuen-Rapati (@onehourwatch). The illustration finds inspiration in the famous "Earthrise" photo taken by Bill Anders while aboard Apollo 8.
Each tote bag is made from heavy-weight cotton canvas and is made and screenprinted in the United States.
SCALING CUBE
Clients who order the U4S-T-SPW will receive a complimentary UNIMATIC Scaling Cube, a tribute to the tool traditionally used by geologists, particularly in meteorite studies.
Measuring 25mm per side, it provides a clear sense of scale when photographed next to meteorite specimens. Its labeled sides (N, S, E, W) support advanced fieldwork where direction and orientation are important.
During the Apollo missions, similar scaling cubes were used to photograph the lunar surface, helping convey the size of rocks and geological features in the absence of familiar references like vegetation or manmade buildings. This practice significantly enhanced the scientific value of lunar images.
Movement
• Swiss-made Sellita SW200-1 b automatic movement.
• 28,800 bph.
• 26 jewels.
• Made in Switzerland.
• Power reserve of 38 hours.
• Sweeping second hand.
• Accurate to +/- 12 seconds/day.
• Hacking seconds.
Limited Edition
• Limited to 60 pieces.
• Geneva Watch Days 2025 exclusive.
• Made by UNIMATIC in Italy.
• UNIMATIC tough pouch, velcro NASA patch, warranty card with unique ID seal.
Dial
• Iron-nickel meteorite dial.
• Widmanstätten pattern, an interlacing crystalline structure that forms only during the slow cooling of molten metal at a rate of just a few degrees per million years.
• Super-LumiNova® BG W9 markers and NASA "worm" logo are printed directly onto the 2.8mm flat sapphire crystal.
Case
• Diameter: 40mm.
• Thickness: 13.3mm including crystal.
• Lug width of 22mm.
• Titanium. Bright white Cerakote™ coating.
• Fixed monoblock bezel with Cerakote™ coating.
• 2.8 mm flat sapphire. Inner side anti-reflective coating.
• Alchemical Sun ☉ 8mm screw-down crown. Cerakote™ coating.
• Water-resistant to 300m≈1000ft≈30atm.
• Cool grey TPU two-piece strap with quick release. Delivered with an additional strap in white nylon with quick release.
Case Back
• Stainless steel with meteor size comparison engraving.
• Individually numbered.
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