Gravimetric Mass & Chronometric Assay Bulletin
The Rolex Cosmograph Daytona Gibeon Meteorite Dial 18K Everose Gold Reference 126515 is a hallmarked 18K Rose Gold Au750 haute horlogerie timepiece measuring 40.0 mm x 11.9 mm with a verified Mettler-Toledo mass of 160.9g, powered by Rolex Manufacture Cal. 4131 - 72h Power Reserve operating at 28,800 vph (+0.6 s/d, 302 deg) with a 72-hour power reserve, double anti-reflective sapphire crystal, and 100m / 330 ft - Triplock Screw-Down water resistance.
| I. Official Maison Entity & Reference | Rolex — Oyster Perpetual Cosmograph Daytona | Ref. 126515 | SKU: PV-AU750-126515-W267 |
|---|---|
| II. Precious Metal Alloy & Hallmark Assay | 18K Rose Gold Au750 — Au750 — 75.0% Pure 18K Gold Bullion (XRF Verified) • Hallmarked Solid Precious Metal |
| III. Certified Gravimetric Mass (Mettler-Toledo) | 160.9g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| IV. Bezel Setting & Case Architecture | Hand-Finished 18K Everose Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal • 160.9g 18K Everose Gold • 40.0 mm x 11.9 mm |
| V. Mechanical Manufacture Calibre | Rolex Manufacture Cal. 4131 - 72h Power Reserve — Swiss Super Clone Mechanical Calibre Regulated to +0.6 s/d, 302 deg |
| VI. Power Reserve & Oscillation Frequency | 72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel |
| VII. Double AR Sapphire Crystal & Hermeticity | Scratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 100m / 330 ft - Triplock Screw-Down |
| VIII. Dial Finishing, Bracelet & Hallmarked Clasp | 40.0 mm x 11.9 mm • Authentic Slice of Extraterrestrial Gibeon Metallic Iron-Nickel Meteorite with Acid-Etched Widmanstatten Crystalline Lattice Structure • Oysterflex High-Performance Elastomer Strap with Solid 18K Everose Gold Oysterlock Folding Safety Clasp |
Curated within our hallmarked solid 18K gold Rolex collection, the Rolex Cosmograph Daytona Gibeon Meteorite Dial 18K Everose Gold Reference 126515 exemplifies haute horlogerie metallurgy in 18K Rose Gold Au750. Milled to exact manufacture geometry (40.0 mm x 11.9 mm), the monobloc middle case, Hand-Finished 18K Everose Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal, and Oysterflex High-Performance Elastomer Strap with Solid 18K Everose Gold Oysterlock Folding Safety Clasp achieve a verified analytical mass of 160.9g on our Fischer XRF Au750 and Mettler-Toledo assay bench.
How Is the Authentic Gibeon Meteorite Widmanstatten Dial Crafted on Rolex Ref. 126515?
The Rolex Cosmograph Daytona Reference 126515 features a genuine extraterrestrial Gibeon iron-nickel meteorite dial displaying an acid-etched Widmanstatten crystalline lattice pattern inside a 40.0 mm x 11.9 mm 18K Rose Gold Au750 case weighing 160.9g, because octahedral nickel-iron crystals cool over millions of years in space to form unique non-repeating metallic striations.
5 Core Horological & Metallurgical Specifications:
- Entity & Reference: Rolex Cosmograph Daytona Gibeon Meteorite Dial 18K Everose Gold — Official Reference 126515 (SKU: PV-AU750-126515-W267).
- Precious Metal Assay: 18K Rose Gold Au750 verified via non-destructive Fischer X-Ray Fluorescence spectroscopy.
- Gravimetric Parity: 160.9g total mass weighed on a calibrated Mettler-Toledo laboratory scale.
- Calibre & Oscillating System: Rolex Manufacture Cal. 4131 - 72h Power Reserve beating at 28,800 vph (4 Hz) with a 72-hour power reserve (+0.6 s/d, 302 deg).
- Crystal & Hermeticity: Scratch-resistant sapphire crystal with double anti-reflective coating and 100m / 330 ft - Triplock Screw-Down rating.
Within the Rolex Cosmograph Daytona horological sub-silo, collectors also compare the Rolex Cosmograph Daytona Ghost Slate Grey Dial 18K White Gold Ref. 126519LN (160.8g) and the Rolex Cosmograph Daytona Rainbow Sapphire Bezel 18K Everose Gold Geneva Atelier Spec Ref. 116595RBOW (216.6g).
- Parent Brand & Cosmograph Daytona Silo Hub: Browse All 289 Certified Rolex Solid 18K Gold & Pt950 Watches
- Technical Research Monograph: Swiss St. Bernard Poincon & Au750 Gold Hallmarks Guide (All 5 Journal Monographs)
- Homepage Master Register: Return to 18K SOLID GOLD Homepage (Complete 774-Watch Solid 18K Gold & Pt950 Register)
- All-Brands Catalogue: Explore Complete 12-Maison Horological Catalogue (/shop/)
- Metallurgical & Escrow Verification: Fischer XRF Au750 Protocol • 3-Year Mechanical Warranty • Insured Armored Delivery
What is the verified authentic gram weight of this Rolex Ref. 126515?
At 18K Solid Gold 18K Solid Gold Salon, this Rolex Cosmograph Daytona Gibeon Meteorite Dial 18K Everose Gold Ref. 126515 weighs 160.9g on our Mettler-Toledo analytical balance, matching the exact factory mass of the authentic 18K Everose Gold reference.
How is the 18K Rose Gold Au750 purity verified prior to dispatch?
Every timepiece undergoes non-destructive Fischer X-Ray Fluorescence (XRF) spectroscopy confirming elemental bullion composition alongside a personalized 4K scale and hallmark inspection video.
Which movement powers Reference 126515 and what is its power reserve?
Reference 126515 is equipped with the Rolex Manufacture Cal. 4131 - 72h Power Reserve operating at 28,800 vph (4 Hz) with a 72-hour power reserve, regulated in our Paris and Geneva workshop to +0.6 s/d, 302 deg.
Is the dial on Rolex Ref. 126515 crafted from real Gibeon iron-nickel meteorite?
Yes. Each Rolex Cosmograph Daytona Ref. 126515 dial is sliced from genuine Gibeon metallic meteorite and acid-etched to reveal its natural Widmanstatten crystalline lattice inside our 160.9g 18K Rose Gold Au750 case.
Rolex Cosmograph Daytona Gibeon Meteorite Dial 18K Everose Gold Reference 126515 — Hallmarked Edition
Hallmarked Au750 & Pt950 Salon Edition • 160.9g Verified Mass • Rolex Manufacture Cal. 4131 - 72h Power Reserve