Gravimetric Mass & Chronometric Assay Bulletin
The Rolex Datejust 41 Hand-Chamfered Bevel Spec Reference 126331 is a hallmarked 18K Gold & 904L Oystersteel Rolesor haute horlogerie timepiece measuring 41.0 mm x 11.7 mm with a verified Mettler-Toledo mass of 150.1g, powered by Rolex Manufacture Cal. 3235 - 70h Power Reserve operating at 28,800 vph (+0.4 s/d, 298 deg) with a 72-hour power reserve, double anti-reflective sapphire crystal, and 100m / 330 ft - Twinlock Screw-Down water resistance.
| I. Official Maison Entity & Reference | Rolex — Oyster Perpetual Datejust 41 | Ref. 126331 | SKU: PV-CUST-126331-W605 |
|---|---|
| II. Precious Metal Alloy & Hallmark Assay | 18K Gold & 904L Oystersteel Rolesor — 5-Axis Swiss CNC Precision Architecture • 1:1 Authentic Reference Mass • Bespoke Collector Commission |
| III. Certified Gravimetric Mass (Mettler-Toledo) | 150.1g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| IV. Bezel Setting & Case Architecture | Signature Rolex Fluted 18K Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal • 150.1g 18K Gold Rolesor • 41.0 mm x 11.7 mm |
| V. Mechanical Manufacture Calibre | Rolex Manufacture Cal. 3235 - 70h Power Reserve — Swiss Super Clone Mechanical Calibre Regulated to +0.4 s/d, 298 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 - Twinlock Screw-Down |
| VIII. Dial Finishing, Bracelet & Hallmarked Clasp | 41.0 mm x 11.7 mm • Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands • Hand-Brushed & Chamfered Integrated Solid Link Bracelet & Deployant Clasp |
Curated within our hallmarked solid 18K gold Rolex collection, the Rolex Datejust 41 Hand-Chamfered Bevel Spec Reference 126331 exemplifies haute horlogerie metallurgy in 18K Gold & 904L Oystersteel Rolesor. Milled to exact manufacture geometry (41.0 mm x 11.7 mm), the monobloc middle case, Signature Rolex Fluted 18K Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal, and Hand-Brushed & Chamfered Integrated Solid Link Bracelet & Deployant Clasp achieve a verified analytical mass of 150.1g on our Fischer XRF Au750 and Mettler-Toledo assay bench.
What Are the Horological & Metallurgical Benchmarks of Rolex Datejust Ref. 126331?
The Rolex Datejust Reference 126331 is a precision-engineered luxury timepiece crafted in 18K Gold & 904L Oystersteel Rolesor (41.0 mm x 11.7 mm) with Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands, Signature Rolex Fluted 18K Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal, and a verified Mettler-Toledo mass of 150.1g, because its Rolex Manufacture Cal. 3235 - 70h Power Reserve movement is regulated across six positions to chronometric tolerances with a 72-hour power reserve.
5 Core Horological & Metallurgical Specifications:
- Entity & Reference: Rolex Datejust 41 Hand-Chamfered Bevel Spec — Official Reference 126331 (SKU: PV-CUST-126331-W605).
- Precious Metal Assay: 18K Gold & 904L Oystersteel Rolesor verified via non-destructive Fischer X-Ray Fluorescence spectroscopy.
- Gravimetric Parity: 150.1g total mass weighed on a calibrated Mettler-Toledo laboratory scale.
- Calibre & Oscillating System: Rolex Manufacture Cal. 3235 - 70h Power Reserve beating at 28,800 vph (4 Hz) with a 72-hour power reserve (+0.4 s/d, 298 deg).
- Crystal & Hermeticity: Scratch-resistant sapphire crystal with double anti-reflective coating and 100m / 330 ft - Twinlock Screw-Down rating.
Within the Rolex Datejust horological sub-silo, collectors also compare the Rolex Datejust 36 Wimbledon Slate Roman Dial Ref. 126231 (130.1g) and the Rolex Datejust 36 Ref. 126234 (120.2g).
- Parent Brand & Datejust 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. 126331?
At 18K Solid Gold 18K Solid Gold Salon, this Rolex Datejust 41 Hand-Chamfered Bevel Spec Ref. 126331 weighs 150.1g on our Mettler-Toledo analytical balance, matching the exact factory mass of the authentic 18K Gold Rolesor reference.
How is the 18K Gold & 904L Oystersteel Rolesor 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 126331 and what is its power reserve?
Reference 126331 is equipped with the Rolex Manufacture Cal. 3235 - 70h Power Reserve 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, 298 deg.
What dial and bezel specifications distinguish Rolex Datejust Ref. 126331?
Reference 126331 combines Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands and Signature Rolex Fluted 18K Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal within a 41.0 mm x 11.7 mm 18K Gold & 904L Oystersteel Rolesor case weighing 150.1g, verified via Fischer XRF spectroscopy and powered by Rolex Manufacture Cal. 3235 - 70h Power Reserve.
Rolex Datejust 41 Hand-Chamfered Bevel Spec Reference 126331 — Salon Edition
Bespoke Atelier Salon Edition • 150.1g Verified Mass • Rolex Manufacture Cal. 3235 - 70h Power Reserve