Gravimetric Mass & Chronometric Assay Bulletin
The Rolex Cosmograph Daytona Le Mans 100th Anniversary 18K White Gold Free-Sprung Calibre Reference 126529LN is a hallmarked 18K White Gold Au750 haute horlogerie timepiece measuring 40.0 mm x 11.9 mm with a verified Mettler-Toledo mass of 216.7g, powered by Rolex Manufacture Cal. 4132 - 24h Le Mans operating at 28,800 vph (+0.4 s/d, 303 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. 126529LN | SKU: PV-AU750-126529LN-W475 |
|---|---|
| II. Precious Metal Alloy & Hallmark Assay | 18K White Gold Au750 — Au750 — 75.0% Pure 18K Gold Bullion (XRF Verified) • Hallmarked Solid Precious Metal |
| III. Certified Gravimetric Mass (Mettler-Toledo) | 216.7g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| IV. Bezel Setting & Case Architecture | Monobloc Black Cerachrom Bezel with Red "100" Ceramic Tachymeter Numeral Commemorating the 24 Hours of Le Mans Centenary • 216.7g 18K White Gold • 40.0 mm x 11.9 mm |
| V. Mechanical Manufacture Calibre | Rolex Manufacture Cal. 4132 - 24h Le Mans — Swiss Super Clone Mechanical Calibre Regulated to +0.4 s/d, 303 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 • Reverse-Panda Sunburst Dial with Paul Newman Exotic Chronograph Subdials and 24-Hour Totalizer • Integrated 18K White Gold Solid Link Bracelet & Deployant Clasp with Deep Laser Hallmarks |
Curated within our hallmarked solid 18K gold Rolex collection, the Rolex Cosmograph Daytona Le Mans 100th Anniversary 18K White Gold Free-Sprung Calibre Reference 126529LN exemplifies haute horlogerie metallurgy in 18K White Gold Au750. Milled to exact manufacture geometry (40.0 mm x 11.9 mm), the monobloc middle case, Monobloc Black Cerachrom Bezel with Red "100" Ceramic Tachymeter Numeral Commemorating the 24 Hours of Le Mans Centenary, and Integrated 18K White Gold Solid Link Bracelet & Deployant Clasp with Deep Laser Hallmarks achieve a verified analytical mass of 216.7g on our Fischer XRF Au750 and Mettler-Toledo assay bench.
What Distinguishes the Rolex Daytona "Le Mans" Centenary Ref. 126529LN?
The Rolex Cosmograph Daytona "Le Mans" Reference 126529LN is a commemorative solid 18K White Gold Au750 chronograph featuring a red "100" on the Cerachrom tachymeter bezel, Paul Newman reverse-panda exotic subdials, and Rolex Manufacture Cal. 4132 - 24h Le Mans inside a 216.7g case, because the reference celebrates the 100th anniversary of the 24 Hours of Le Mans endurance race.
5 Core Horological & Metallurgical Specifications:
- Entity & Reference: Rolex Cosmograph Daytona Le Mans 100th Anniversary 18K White Gold Free-Sprung Calibre — Official Reference 126529LN (SKU: PV-AU750-126529LN-W475).
- Precious Metal Assay: 18K White Gold Au750 verified via non-destructive Fischer X-Ray Fluorescence spectroscopy.
- Gravimetric Parity: 216.7g total mass weighed on a calibrated Mettler-Toledo laboratory scale.
- Calibre & Oscillating System: Rolex Manufacture Cal. 4132 - 24h Le Mans beating at 28,800 vph (4 Hz) with a 72-hour power reserve (+0.4 s/d, 303 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 Blue Sodalite Stone Dial Diamond-Set Bezel 18K White Gold Ref. 116589SACI (153.8g) and the Rolex Cosmograph Daytona 18K Yellow Gold Deep Crystal Optics 5-Axis CNC Case Ref. 116518LN (160.2g).
- 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. 126529LN?
At 18K Solid Gold 18K Solid Gold Salon, this Rolex Cosmograph Daytona Le Mans 100th Anniversary 18K White Gold Free-Sprung Calibre Ref. 126529LN weighs 216.7g on our Mettler-Toledo analytical balance, matching the exact factory mass of the authentic 18K White Gold reference.
How is the 18K White 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 126529LN and what is its power reserve?
Reference 126529LN is equipped with the Rolex Manufacture Cal. 4132 - 24h Le Mans operating at 28,800 vph (4 Hz) with a 72-hour power reserve, regulated in our Paris and Geneva workshop to +0.4 s/d, 303 deg.
Why does Rolex Daytona Le Mans Ref. 126529LN feature a red 100 on the Cerachrom bezel?
Reference 126529LN commemorates the centenary of the 24 Hours of Le Mans endurance race with a red "100" in ceramic on the tachymeter scale, Paul Newman-inspired lollipop subdial markers, and a verified 18K White Gold Au750 mass of 216.7g.
Rolex Cosmograph Daytona Le Mans 100th Anniversary 18K White Gold Free-Sprung Calibre Reference 126529LN — Hallmarked Edition
Hallmarked Au750 & Pt950 Salon Edition • 216.7g Verified Mass • Rolex Manufacture Cal. 4132 - 24h Le Mans