Gravimetric Mass & Chronometric Assay Bulletin
The Cartier Santos de Cartier Large Full 18K Rose Gold Reference WGSA0028 is a hallmarked 18K Rose Gold Au750 haute horlogerie timepiece measuring 39.8 mm x 9.38 mm with a verified Mettler-Toledo mass of 178.1g, powered by Cartier Manufacture Cal. 1847 MC / Skeleton Cal. 9611 MC operating at 28,800 vph (+0.5 s/d, 304 deg) with a 72-hour power reserve, double anti-reflective sapphire crystal, and 30m / 3 ATM water resistance.
| I. Official Maison Entity & Reference | Cartier — Santos de Cartier | Ref. WGSA0028 | SKU: PV-AU750-WGSA0028-W116 |
|---|---|
| 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) | 178.1g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| IV. Bezel Setting & Case Architecture | Hand-Finished 18K Rose Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal • 178.1g 18K Rose Gold • 39.8 mm x 9.38 mm |
| V. Mechanical Manufacture Calibre | Cartier Manufacture Cal. 1847 MC / Skeleton Cal. 9611 MC — Swiss Super Clone Mechanical Calibre Regulated to +0.5 s/d, 304 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 • 30m / 3 ATM |
| VIII. Dial Finishing, Bracelet & Hallmarked Clasp | 39.8 mm x 9.38 mm • Hand-Finished Collector Dial with Solid 18K Gold Applied Hour Markers & Hands • Integrated 18K Rose Gold Solid Link Bracelet & Deployant Clasp with Deep Laser Hallmarks |
Curated within our hallmarked solid 18K gold Cartier collection, the Cartier Santos de Cartier Large Full 18K Rose Gold Reference WGSA0028 exemplifies haute horlogerie metallurgy in 18K Rose Gold Au750. Milled to exact manufacture geometry (39.8 mm x 9.38 mm), the monobloc middle case, Hand-Finished 18K Rose Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal, and Integrated 18K Rose Gold Solid Link Bracelet & Deployant Clasp with Deep Laser Hallmarks achieve a verified analytical mass of 178.1g on our Fischer XRF Au750 and Mettler-Toledo assay bench.
What Are the Horological & Metallurgical Benchmarks of Cartier Santos de Cartier Ref. WGSA0028?
The Cartier Santos de Cartier Reference WGSA0028 is a precision-engineered luxury timepiece crafted in 18K Rose Gold Au750 (39.8 mm x 9.38 mm) with Hand-Finished Collector Dial with Solid 18K Gold Applied Hour Markers & Hands, Hand-Finished 18K Rose Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal, and a verified Mettler-Toledo mass of 178.1g, because its Cartier Manufacture Cal. 1847 MC / Skeleton Cal. 9611 MC movement is regulated across six positions to chronometric tolerances with a 72-hour power reserve.
5 Core Horological & Metallurgical Specifications:
- Entity & Reference: Cartier Santos de Cartier Large Full 18K Rose Gold — Official Reference WGSA0028 (SKU: PV-AU750-WGSA0028-W116).
- Precious Metal Assay: 18K Rose Gold Au750 verified via non-destructive Fischer X-Ray Fluorescence spectroscopy.
- Gravimetric Parity: 178.1g total mass weighed on a calibrated Mettler-Toledo laboratory scale.
- Calibre & Oscillating System: Cartier Manufacture Cal. 1847 MC / Skeleton Cal. 9611 MC beating at 28,800 vph (4 Hz) with a 72-hour power reserve (+0.5 s/d, 304 deg).
- Crystal & Hermeticity: Scratch-resistant sapphire crystal with double anti-reflective coating and 30m / 3 ATM rating.
Within the Cartier Santos de Cartier horological sub-silo, collectors also compare the Cartier Santos de Cartier Medium 35.1mm Opaline Dial Ref. WSSA0029 (115.5g) and the Cartier Santos-Dumont Medium Roman Dial Alligator Strap Ref. WSSA0023 (115.9g).
- Parent Brand & Santos de Cartier Silo Hub: Browse All 19 Certified Cartier 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 Cartier Ref. WGSA0028?
At 18K Solid Gold 18K Solid Gold Salon, this Cartier Santos de Cartier Large Full 18K Rose Gold Ref. WGSA0028 weighs 178.1g on our Mettler-Toledo analytical balance, matching the exact factory mass of the authentic 18K Rose 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 WGSA0028 and what is its power reserve?
Reference WGSA0028 is equipped with the Cartier Manufacture Cal. 1847 MC / Skeleton Cal. 9611 MC operating at 28,800 vph (4 Hz) with a 72-hour power reserve, regulated in our Paris and Geneva workshop to +0.5 s/d, 304 deg.
What dial and bezel specifications distinguish Cartier Santos de Cartier Ref. WGSA0028?
Reference WGSA0028 combines Hand-Finished Collector Dial with Solid 18K Gold Applied Hour Markers & Hands and Hand-Finished 18K Rose Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal within a 39.8 mm x 9.38 mm 18K Rose Gold Au750 case weighing 178.1g, verified via Fischer XRF spectroscopy and powered by Cartier Manufacture Cal. 1847 MC / Skeleton Cal. 9611 MC.
Cartier Santos de Cartier Large Full 18K Rose Gold Reference WGSA0028 — Hallmarked Edition
Hallmarked Au750 & Pt950 Salon Edition • 178.1g Verified Mass • Cartier Manufacture Cal. 1847 MC / Skeleton Cal. 9611 MC