Within the Rolex GMT-Master II lineage, the Ref. 126719BLRO in 18k white gold stands at the absolute summit of production exclusivity. While standard black and blue-dial GMT references emphasize utilitarian sport functionality, the meteorite dial variant transforms the travel tool watch into an exotic piece of geological art.
Historically, natural meteorite dials have represented a formidable obstacle for independent horological workshops. The dial substrate is cut from authentic iron-nickel meteorites—typically the Gibeon or Muonionalusta specimens—revealing an organic crystalline matrix known as the Widmanstätten pattern when treated with an acid bath. Flat printed dials or laser-etched brass blanks immediately fail under direct macro scrutiny.
The latest Clean Factory (C厂) GMT-Master II 126719BLRO Meteorite Edition addresses this complex reference in its entirety. Powered by the benchmark Custom Dandong Caliber 3285 Super Clone movement and paired with Clean’s proprietary two-tone Cerachrom ceramic bezel, this release demonstrates how micro-manufacturing handles extraterrestrial materials and complex multi-timezone calibers.
Clean Factory GMT-Master II 126719BLRO Quick Specifications
| Component | Technical Specification |
|---|---|
| Model Reference | Rolex Oyster Perpetual GMT-Master II (Ref. 126719BLRO) |
| Case Dimensions | 40mm Diameter × 12.1mm Thickness (True 1:1 Profile) |
| Dial Architecture | Genuine Sliced Metallic Iron Meteorite (Acid-Etched Widmanstätten Pattern) |
| Bezel Assembly | Bidirectional 24-Hour Red/Blue Cerachrom Ceramic Bezel (Platinum PVD) |
| Crystal / Cyclops | Sapphire Crystal with Double Anti-Reflective 2.5x Magnification Lens |
| Internal Caliber | Custom Dandong 1:1 Integrated Caliber 3285 Automatic Movement |
| Complication | True GMT with Independent Jumping Local Hour Hand & Date Synchronization |
| Power Reserve | ~70 Hours at 28,800 VPH (4Hz) |
| Bracelet & Clasp | Solid 904L Steel Jubilee Bracelet with Easylink 5mm Comfort Clasp (F6U) |
1. The Dial: Sliced Iron Meteorite & The Widmanstätten Structure
The centerpiece of this reference is its dial face. Sliced from genuine extraterrestrial iron-nickel octahedrite meteorite, each dial undergoes a controlled nitric acid wash to reveal lamellar banding formed across millions of years in deep space.
Under macro-lens inspection, Clean Factory’s execution exhibits several distinctive characteristics:
- Authentic Mineral Depth: The surface shows genuine geometric striations running at interlocking 60° and 120° angles. Because natural meteorite is utilized, no two dials display an identical pattern, preserving the organic individuality of the original reference.
- Pad-Printed Typography Over Crystalline Relief: Printing fine serifs across an irregular, porous metallic surface requires specialized ink viscosity. The black “ROLEX OYSTER PERPETUAL” and “GMT-MASTER II” text shows sharp ink definition with zero bleeding into the microscopic grain fissures.
- Dial Furniture & Hand-Stack Geometry: The 18k white-gold plated hour indices and faceted hands feature smooth perimeter bevels. The applied markers sit completely flush on the uneven mineral base without visible mounting gaps or adhesive bleed.
2. The Bezel: Clean’s Patented Dual-Color Cerachrom Sintering
Clean Factory’s reputation across the watch community was initially forged on its ceramic bezel manufacturing. On the Ref. 126719BLRO, mastering the red-and-blue “Pepsi” insert remains one of the most chemically challenging processes in watchmaking.
- Color Transition Without Bleeding: Sintering a single monobloc ceramic ring with two distinct chemical compositions requires microscopic boundary control. Clean Factory delivers a clean, horizontal division at the 6 and 18 numerals without muddy purple discoloration at the seam.
- Correct Chromatic Tones: The red half captures the deep crimson/burgundy tone of genuine modern Rolex Cerachrom, while the blue half reflects a dark navy shade that avoids looking overly saturated or pastel.
- Platinum PVD Numerals: The recessed 24-hour graduation markings are coated via physical vapor deposition with pure platinum powder, delivering a cool, metallic sheen that resists dirt accumulation and UV discoloration.
3. The Engine: Custom Dandong Caliber 3285 Super Clone
Powering this reference is the industry-standard Custom Dandong Caliber 3285 Movement, clearly marked on the factory wrap as the 3285 CLEAN edition.
Unlike lower-tier GMT clones that use a modified ETA base with a delicate “piggyback” timezone gear, the Dandong 3285 is a dedicated 1:1 integrated caliber engineered from the ground up:
- True Independent Jumping Hour Function: Pulling the crown to Position 1 allows the local hour hand to jump independently in crisp one-hour increments forward or backward without stopping the balance wheel or disturbing the running minutes and GMT hand.
- Bidirectional Quick Date Setting: Adjusting the date is accomplished exclusively by jumping the local hour hand past midnight in either direction, functioning with the exact mechanical logic of an authentic Rolex 3285 caliber.
- 70-Hour Power Reserve: Utilizing an optimized mainspring barrel and gear-train layout, the movement delivers an authentic ~70-hour power reserve at 28,800 VPH (4Hz), providing reliable multi-day autonomy off the wrist.
4. Case Architecture & Five-Link Jubilee Finishing
The Ref. 126719BLRO pairs the functionality of the GMT-Master II with the elegance of a five-piece Jubilee bracelet, echoing vintage travel aesthetics.
- Case Flank Chamfers & Crown Guards: The mid-case displays uniform mirror polishing along the case flanks, contrasting against the satin-brushed top lug profiles. The crown guards wrap snugly around the Triplock winding crown, protecting the stem assembly without creating uncomfortable wrist pressure.
- Supple Jubilee Articulation: The five-link Jubilee bracelet features mirror-polished rounded center links flanked by satin-brushed outer rows. The articulation is silky and flexible, completely free of the stiff binding or hair-pinching seen on entry-level bracelets.
- Oysterlock Safety Clasp & F6U Markings: The folding clasp features crisp CNC-carved coronet detailing and crisp inner blade stampings with the correct factory
F6Ucode. Inside, the Easylink 5mm comfort extension system deploys and locks cleanly, allowing tool-free micro-adjustments for temperature variations.
Frequently Asked Questions
Is the dial on the Clean Factory 126719BLRO made from real meteorite?
Yes. Clean Factory utilizes genuine sliced metallic iron meteorite treated with a controlled acid wash to expose its natural Widmanstätten pattern. Because each slice is derived from mineral specimens, every dial possesses a unique crystalline structure.
How does the Dandong 3285 movement adjust the date?
The Dandong 3285 operates with true Rolex GMT mechanics. There is no quickset date gear; the date advances or reverses automatically as the local hour hand is jumped forward or backward past midnight in Crown Position 1.
How durable is the color on Clean Factory’s red/blue Cerachrom bezel?
The bezel is crafted from solid sintered ceramic with mineral pigments embedded into the material matrix, not painted on top. It is impervious to scratches, fading, and UV exposure, retaining its original color stability over decades of daily wear.
Final Technical Verdict
The Clean Factory GMT-Master II 126719BLRO Meteorite stands as one of the most complex modern builds to successfully execute. By integrating an authentic sliced meteorite dial with natural Widmanstätten geometry, perfecting the red-and-blue Cerachrom ceramic boundary, and driving the watch with a reliable, true-jumping-hour Dandong 3285 movement, Clean Factory has produced an exceptionally accomplished evaluation piece for enthusiasts who appreciate high-complexity horology.
