Gravimetric Mass & Chronometric Assay Bulletin
The Rolex Sky-Dweller Sunray Green Dial 18K Yellow Gold Reference 336938 is a hallmarked 18K Yellow Gold Au750 haute horlogerie timepiece measuring 42.0 mm x 13.8 mm with a verified Mettler-Toledo mass of 252.0g, powered by Rolex Manufacture Cal. 9002 Annual Calendar operating at 28,800 vph (+0.8 s/d, 303 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 Sky-Dweller | Ref. 336938 | SKU: PV-AU750-336938-W709 |
|---|---|
| II. Precious Metal Alloy & Hallmark Assay | 18K Yellow Gold Au750 — Au750 — 75.0% Pure 18K Gold Bullion (XRF Verified) • Hallmarked Solid Precious Metal |
| III. Certified Gravimetric Mass (Mettler-Toledo) | 252.0g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| IV. Bezel Setting & Case Architecture | Signature Rolex Fluted 18K Yellow Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal • 252.0g 18K Yellow Gold • 42.0 mm x 13.8 mm |
| V. Mechanical Manufacture Calibre | Rolex Manufacture Cal. 9002 Annual Calendar — Swiss Super Clone Mechanical Calibre Regulated to +0.8 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 - Twinlock Screw-Down |
| VIII. Dial Finishing, Bracelet & Hallmarked Clasp | 42.0 mm x 13.8 mm • Sunray Emerald / Khaki Green Dial with Solid 18K Gold Applied Hour Markers & Hands • Integrated 18K Yellow Gold Solid Link Bracelet & Deployant Clasp with Deep Laser Hallmarks |
Curated within our hallmarked solid 18K gold Rolex collection, the Rolex Sky-Dweller Sunray Green Dial 18K Yellow Gold Reference 336938 exemplifies haute horlogerie metallurgy in 18K Yellow Gold Au750. Milled to exact manufacture geometry (42.0 mm x 13.8 mm), the monobloc middle case, Signature Rolex Fluted 18K Yellow Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal, and Integrated 18K Yellow Gold Solid Link Bracelet & Deployant Clasp with Deep Laser Hallmarks achieve a verified analytical mass of 252.0g on our Fischer XRF Au750 and Mettler-Toledo assay bench.
What Are the Horological & Metallurgical Benchmarks of Rolex Sky-Dweller Ref. 336938?
The Rolex Sky-Dweller Reference 336938 is a precision-engineered luxury timepiece crafted in 18K Yellow Gold Au750 (42.0 mm x 13.8 mm) with Sunray Emerald / Khaki Green Dial with Solid 18K Gold Applied Hour Markers & Hands, Signature Rolex Fluted 18K Yellow Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal, and a verified Mettler-Toledo mass of 252.0g, because its Rolex Manufacture Cal. 9002 Annual Calendar movement is regulated across six positions to chronometric tolerances with a 72-hour power reserve.
5 Core Horological & Metallurgical Specifications:
- Entity & Reference: Rolex Sky-Dweller Sunray Green Dial 18K Yellow Gold — Official Reference 336938 (SKU: PV-AU750-336938-W709).
- Precious Metal Assay: 18K Yellow Gold Au750 verified via non-destructive Fischer X-Ray Fluorescence spectroscopy.
- Gravimetric Parity: 252.0g total mass weighed on a calibrated Mettler-Toledo laboratory scale.
- Calibre & Oscillating System: Rolex Manufacture Cal. 9002 Annual Calendar beating at 28,800 vph (4 Hz) with a 72-hour power reserve (+0.8 s/d, 303 deg).
- Crystal & Hermeticity: Scratch-resistant sapphire crystal with double anti-reflective coating and 100m / 330 ft - Twinlock Screw-Down rating.
Within the Rolex Sky-Dweller horological sub-silo, collectors also compare the Rolex Sky-Dweller Gibeon Meteorite Dial 18K Everose Gold Ref. 336935 (252.4g) and the Rolex Sky-Dweller 18K Everose Gold Ref. 336935 (252.2g).
- Parent Brand & Sky-Dweller 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. 336938?
At 18K Solid Gold 18K Solid Gold Salon, this Rolex Sky-Dweller Sunray Green Dial 18K Yellow Gold Ref. 336938 weighs 252.0g on our Mettler-Toledo analytical balance, matching the exact factory mass of the authentic 18K Yellow Gold reference.
How is the 18K Yellow 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 336938 and what is its power reserve?
Reference 336938 is equipped with the Rolex Manufacture Cal. 9002 Annual Calendar operating at 28,800 vph (4 Hz) with a 72-hour power reserve, regulated in our Paris and Geneva workshop to +0.8 s/d, 303 deg.
What dial and bezel specifications distinguish Rolex Sky-Dweller Ref. 336938?
Reference 336938 combines Sunray Emerald / Khaki Green Dial with Solid 18K Gold Applied Hour Markers & Hands and Signature Rolex Fluted 18K Yellow Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal within a 42.0 mm x 13.8 mm 18K Yellow Gold Au750 case weighing 252.0g, verified via Fischer XRF spectroscopy and powered by Rolex Manufacture Cal. 9002 Annual Calendar.
Rolex Sky-Dweller Sunray Green Dial 18K Yellow Gold Reference 336938 — Hallmarked Edition
Hallmarked Au750 & Pt950 Salon Edition • 252.0g Verified Mass • Rolex Manufacture Cal. 9002 Annual Calendar