Fischer XRF Au750 (75.0%) & Mettler-Toledo Gravimetric Verification
The Rolex Cosmograph Daytona Giraffe Off-Catalogue Diamond Edition 18K Everose Gold Reference 126555TBR is a direct Swiss foundry specimen engineered in 18K Rose Gold Au750 (40.0 mm x 11.9 mm) with a certified Mettler-Toledo mass of 216.4g, Fischer XRF Au750 metallurgical verification, and Rolex Manufacture Cal. 4131 - 72h Power Reserve running at 28,800 vph (+0.5 s/d, 296 deg) with a 72-hour power reserve and 100m / 330 ft - Triplock Screw-Down rating.
Catalogued in our direct Swiss foundry Rolex assay archive under Specimen Code LAB-XRF-126555TBR-W171, this Rolex Cosmograph Daytona Giraffe Off-Catalogue Diamond Edition 18K Everose Gold Reference 126555TBR is smelted and CNC-machined in 18K Rose Gold Au750 (40.0 mm x 11.9 mm). Prior to archival release, the completed assembly is weighed on a calibrated Mettler-Toledo balance at 216.4g and scanned via non-destructive Fischer XRF spectroscopy.
What Does the TBR Baguette Diamond Designation Mean on Rolex Ref. 126555TBR?
The Rolex Cosmograph Daytona "Giraffe" Reference 126555TBR is an off-catalog high-jewelry timepiece in 18K Rose Gold Au750 equipped with 36 trapeze-cut baguette VVS diamonds on the bezel (TBR — Taille Baguette Diamants) and a verified mass of 216.4g, because off-catalog TBR allocations replace the standard tachymeter or fluted bezel with hand-matched baguette diamond channels.
5 Core Foundry & Laboratory Assay Specifications:
- Foundry Specimen Entity: Rolex Cosmograph Daytona Giraffe Off-Catalogue Diamond Edition 18K Everose Gold — Official Ref. 126555TBR (Specimen LAB-XRF-126555TBR-W171).
- XRF Metallurgical Assay: 18K Rose Gold Au750 certified for elemental composition and hallmark integrity.
- Mettler-Toledo Mass: 216.4g verified gravimetric parity matching the authentic manufacture reference.
- Chronometric Calibre: Rolex Manufacture Cal. 4131 - 72h Power Reserve beating at 28,800 vph (4 Hz) with 72-hour reserve and +0.5 s/d, 296 deg Witschi trace.
- Optical & Pressure Testing: Double anti-reflective sapphire crystal, Giraffe Savanna Pave Dial with Solid 18K Gold Applied Hour Markers & Hands, and 100m / 330 ft - Triplock Screw-Down barometric sealing.
Within the Rolex Cosmograph Daytona horological sub-silo, collectors also compare the Rolex Cosmograph Daytona Rainbow Sapphire Bezel 18K Everose Gold Ref. 116595RBOW (216.9g) and the Rolex Cosmograph Daytona Starry Sky Dial 18K Everose Gold Ref. 126505 (216.3g).
- Parent Brand & Cosmograph Daytona Silo Hub: Browse All 289 Certified Rolex Solid 18K Gold & Pt950 Watches
- Technical Research Monograph: Fischer XRF Au750 Spectrometry Watch Authentication SOP-750 (All 5 Journal Monographs)
- Homepage Master Register: Return to 18K FACTORY 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 laboratory instruments certify Reference 126555TBR (Rolex)?
Every 18K Factory specimen is verified on three calibrated instruments on 4K video: a Mettler-Toledo analytical balance (216.4g), a Fischer XRF spectrometer (18K Rose Gold Au750), and a Witschi Chronoscope (+0.5 s/d, 296 deg).
Does the 216.4g reading match the authentic original Rolex 126555TBR weight?
Yes. Our CNC foundry machines the 18K Everose Gold case and bracelet to replicate the exact 216.4g reference mass of the authentic manufacture timepiece.
What are the movement specifications for Reference 126555TBR?
Reference 126555TBR is powered by the Rolex Manufacture Cal. 4131 - 72h Power Reserve operating at 28,800 vph (4 Hz) with a 72-hour power reserve, regulated across six positions to +0.5 s/d, 296 deg.
What does the TBR suffix mean on Rolex Cosmograph Daytona Ref. 126555TBR?
The TBR horological suffix designates Taille Baguette Diamants: 36 precision-cut baguette VVS diamonds channel-set into the 18K Rose Gold Au750 bezel of this 216.4g off-catalog Rolex Reference 126555TBR.
Rolex Cosmograph Daytona Giraffe Off-Catalogue Diamond Edition 18K Everose Gold Ref. 126555TBR — XRF Certified Edition
Fischer XRF Verified 18K Rose Gold Au750 • Mettler-Toledo 216.4g • Rolex Manufacture Cal. 4131 - 72h Power Reserve
| Assay Specimen ID & Official Reference | Rolex — Oyster Perpetual Cosmograph Daytona | Ref. 126555TBR | SKU: LAB-XRF-126555TBR-W171 |
|---|---|
| Fischer XRF Elemental Purity & Alloy | 18K Rose Gold Au750 — Au750 — 75.0% Pure 18K Gold Bullion (XRF Verified) • Hallmarked Solid Precious Metal |
| Mettler-Toledo Gravimetric Mass (g) | 216.4g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| Bezel Tolerance, Gem-Setting & Case Dimension | Off-Catalog 18K Rose Gold Au750 Bezel Set with 36 Trapeze-Cut Baguette VVS Diamonds (TBR — Taille Baguette Diamants) • 216.4g 18K Everose Gold • 40.0 mm x 11.9 mm |
| Calibre Reference & Witschi Chronometry | Rolex Manufacture Cal. 4131 - 72h Power Reserve — Swiss Super Clone Mechanical Calibre Regulated to +0.5 s/d, 296 deg |
| Isochronism Frequency & Autonomous Power Reserve | 72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel |
| Double AR Sapphire Crystal & Barometric Rating | Scratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 100m / 330 ft - Triplock Screw-Down |
| Dial Metallurgy & Clasp Hallmark Verification | 40.0 mm x 11.9 mm • Giraffe Savanna Pave Dial with Solid 18K Gold Applied Hour Markers & Hands • Integrated 18K Everose Gold Solid Link Bracelet & Deployant Clasp with Deep Laser Hallmarks |