Gravimetric Mass & Chronometric Assay Bulletin
The Rolex GMT-Master II Diamond-Set Bezel 18K Everose Gold Reference 126755SARU 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 225.3g, powered by Rolex Manufacture Cal. 3285 - 70h Power Reserve operating at 28,800 vph (+0.4 s/d, 300 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 GMT-Master II | Ref. 126755SARU | SKU: PV-AU750-126755SARU-W40 |
|---|---|
| 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) | 225.3g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| IV. Bezel Setting & Case Architecture | Off-Catalog 18K Rose Gold Au750 Haute Joaillerie Bezel Hand-Set with Graduated Baguette-Cut Precious Gemstones and VVS Diamonds • 225.3g 18K Everose Gold • 40.0 mm x 11.9 mm |
| V. Mechanical Manufacture Calibre | Rolex Manufacture Cal. 3285 - 70h Power Reserve — Swiss Super Clone Mechanical Calibre Regulated to +0.4 s/d, 300 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 • Diamond-Set Bezel with Solid 18K Gold Applied Hour Markers & Hands • Integrated 18K Everose Gold Solid Link Bracelet & Deployant Clasp with Deep Laser Hallmarks |
Curated within our hallmarked solid 18K gold Rolex collection, the Rolex GMT-Master II Diamond-Set Bezel 18K Everose Gold Reference 126755SARU 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, Off-Catalog 18K Rose Gold Au750 Haute Joaillerie Bezel Hand-Set with Graduated Baguette-Cut Precious Gemstones and VVS Diamonds, and Integrated 18K Everose Gold Solid Link Bracelet & Deployant Clasp with Deep Laser Hallmarks achieve a verified analytical mass of 225.3g on our Fischer XRF Au750 and Mettler-Toledo assay bench.
What Distinguishes the Off-Catalog Haute Joaillerie Rolex Ref. 126755SARU?
The Rolex GMT-Master II Reference 126755SARU is an off-catalog haute joaillerie collector edition crafted in 18K Rose Gold Au750 (40.0 mm x 11.9 mm) with a hand-set baguette-cut gemstone bezel and a verified mass of 225.3g, because each baguette sapphire, emerald, ruby, or VVS diamond is optically graded for zero-gap channel alignment.
5 Core Horological & Metallurgical Specifications:
- Entity & Reference: Rolex GMT-Master II Diamond-Set Bezel 18K Everose Gold — Official Reference 126755SARU (SKU: PV-AU750-126755SARU-W40).
- Precious Metal Assay: 18K Rose Gold Au750 verified via non-destructive Fischer X-Ray Fluorescence spectroscopy.
- Gravimetric Parity: 225.3g total mass weighed on a calibrated Mettler-Toledo laboratory scale.
- Calibre & Oscillating System: Rolex Manufacture Cal. 3285 - 70h Power Reserve beating at 28,800 vph (4 Hz) with a 72-hour power reserve (+0.4 s/d, 300 deg).
- Crystal & Hermeticity: Scratch-resistant sapphire crystal with double anti-reflective coating and 100m / 330 ft - Triplock Screw-Down rating.
Within the Rolex GMT-Master II horological sub-silo, collectors also compare the Rolex GMT-Master II Golden Chatoyant Tiger Eye Dial 18K Everose Gold Ref. 126715CHNR (225.4g) and the Rolex GMT-Master II Pepsi Gibeon Meteorite Dial 18K White Gold Ref. 126719BLRO (225.3g).
- Parent Brand & GMT-Master II 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. 126755SARU?
At 18K Solid Gold 18K Solid Gold Salon, this Rolex GMT-Master II Diamond-Set Bezel 18K Everose Gold Ref. 126755SARU weighs 225.3g 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 126755SARU and what is its power reserve?
Reference 126755SARU is equipped with the Rolex Manufacture Cal. 3285 - 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, 300 deg.
How are the baguette gemstones set on Rolex Off-Catalog Ref. 126755SARU?
Master gem-setters cut and channel-set each baguette gemstone directly into the 18K Rose Gold Au750 bezel and case architecture of Reference 126755SARU, preserving its 225.3g authentic reference weight and Rolex Manufacture Cal. 3285 - 70h Power Reserve chronometry.
Rolex GMT-Master II Diamond-Set Bezel 18K Everose Gold Reference 126755SARU — Hallmarked Edition
Hallmarked Au750 & Pt950 Salon Edition • 225.3g Verified Mass • Rolex Manufacture Cal. 3285 - 70h Power Reserve