Fischer XRF Au750 (75.0%) & Mettler-Toledo Gravimetric Verification
The Rolex Cosmograph Daytona Barbie Pink Opal & Ruby 18K Yellow Gold Reference 126538TBR is a Monte-Carlo registered luxury timepiece crafted in 18K Yellow Gold Au750 (40.0 mm x 11.9 mm) with a verified Mettler-Toledo analytical weight of 160.3g, powered by Rolex Manufacture Cal. 4131 - 72h Power Reserve beating at 28,800 vph (+0.5 s/d, 303 deg) with a 72-hour power reserve, double anti-reflective sapphire crystal, and 100m / 330 ft - Triplock Screw-Down water resistance.
| Entity, Maison & Official Reference | Rolex — Oyster Perpetual Cosmograph Daytona | Ref. 126538TBR | SKU: MC-AU750-126538TBR-W61 |
|---|---|
| Precious Metal Alloy & XRF Purity | 18K Yellow Gold Au750 — Au750 — 75.0% Pure 18K Gold Bullion (XRF Verified) • Hallmarked Solid Precious Metal |
| Verified Total Mass (Mettler-Toledo Scale) | 160.3g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| Bezel Architecture & Gem-Setting Spec | Baguette-Cut VVS1 Diamond-Set 18K Yellow Gold Bezel with Double-AR Sapphire Crystal • 160.3g 18K Yellow Gold • 40.0 mm x 11.9 mm |
| Swiss Super Clone Movement Calibre | Rolex Manufacture Cal. 4131 - 72h Power Reserve — Swiss Super Clone Mechanical Calibre Regulated to +0.5 s/d, 303 deg |
| Power Reserve & Oscillation Frequency | 72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel |
| Double AR Sapphire Crystal & Water Resistance | Scratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 100m / 330 ft - Triplock Screw-Down |
| Dial Finishing & Hallmarked Bracelet Clasp | 40.0 mm x 11.9 mm • Hand-Finished Collector Dial with Solid 18K Gold Applied Hour Markers & Hands • Integrated 18K Yellow Gold Hand-Stitched Alligator / Elastomer Strap & Solid Gold Folding Clasp with Deep Laser Hallmarks |
Recorded in our Monte-Carlo solid 18K gold Rolex register, the Rolex Cosmograph Daytona Barbie Pink Opal & Ruby 18K Yellow Gold Reference 126538TBR unites authentic Geneva proportions (40.0 mm x 11.9 mm) with a certified 18K Yellow Gold Au750 mass of 160.3g. Every detail of the Hand-Finished Collector Dial with Solid 18K Gold Applied Hour Markers & Hands, Baguette-Cut VVS1 Diamond-Set 18K Yellow Gold Bezel with Double-AR Sapphire Crystal, and hallmarked clasp is verified under our Fischer XRF Au750 and Mettler-Toledo laboratory protocol.
5 Core Horological & Metallurgical Specifications:
- Registered Entity & Ref: Rolex Cosmograph Daytona Barbie Pink Opal & Ruby 18K Yellow Gold — Official Reference 126538TBR (SKU: MC-AU750-126538TBR-W61).
- Precious Metal Alloy: 18K Yellow Gold Au750 with deep mechanical hallmarking and 5-axis Swiss CNC case finishing.
- Verified Reference Mass: 160.3g confirmed on our Monte-Carlo showroom Mettler-Toledo analytical balance.
- Mechanical Calibre: Rolex Manufacture Cal. 4131 - 72h Power Reserve operating at 28,800 vph (4 Hz) with 72-hour power reserve (+0.5 s/d, 303 deg).
- Sapphire Crystal & QC: Scratch-resistant sapphire crystal with double anti-reflective coating and 100m / 330 ft - Triplock Screw-Down water resistance.
Within the same Rolex horological silo, collectors also compare the Rolex Day-Date 36 Coral Red Stella Lacquer Dial 18K Yellow Gold Ref. 18238 (141.5g) and the Rolex Cosmograph Daytona Gibeon Meteorite Dial 18K White Gold Hand-Finished Buff Dial Deep Crystal Optics Ref. 126519 (160.3g).
What is the verified authentic weight of this Rolex Ref. 126538TBR?
This Rolex Cosmograph Daytona Barbie Pink Opal & Ruby 18K Yellow Gold Ref. 126538TBR weighs 160.3g in 18K Yellow Gold Au750, matching the exact authentic factory weight on our Monte-Carlo showroom Mettler-Toledo analytical balance.
Are all 8 showroom photographs of Reference 126538TBR unedited studio shots?
Yes. All 8 gallery plates show the actual timepiece captured across multiple studio angles on our quality-control bench with zero stock renders.
Which movement powers Reference 126538TBR and how do I request the 4K QC video?
Reference 126538TBR is powered by the Rolex Manufacture Cal. 4131 - 72h Power Reserve (28,800 vph, 72-hour power reserve, regulated to +0.5 s/d, 303 deg). Message our Monte-Carlo Private Client Concierge on WhatsApp (+1 305 724 0661) for your personalized 4K video dossier.
Rolex Cosmograph Daytona Barbie Pink Opal & Ruby 18K Yellow Gold Ref. 126538TBR
Monte-Carlo Reference Register • 160.3g 18K Yellow Gold Au750 • Rolex Manufacture Cal. 4131 - 72h Power Reserve