Gravimetric Mass & Chronometric Assay Bulletin
The Patek Philippe Aquanaut Luce Annual Calendar 18K Rose Gold Chronometer Regulated Spec Reference 5261R is a hallmarked 18K Rose Gold Au750 haute horlogerie timepiece measuring 39.9 mm x 10.9 mm with a verified Mettler-Toledo mass of 104.9g, powered by Patek Philippe Cal. 26-330 S QA LU operating at 28,800 vph (+0.4 s/d, 298 deg) with a 72-hour power reserve, double anti-reflective sapphire crystal, and 30m / 3 ATM water resistance.
| I. Official Maison Entity & Reference | Patek Philippe — Aquanaut Luce Annual Calendar | Ref. 5261R | SKU: PV-AU750-5261R-W650 |
|---|---|
| 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) | 104.9g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| IV. Bezel Setting & Case Architecture | Satin-Brushed Rounded Octagonal Bezel with Mirror-Polished Chamfered Bevels with Anti-Reflective Scratch-Resistant Sapphire Crystal • 104.9g 18K Rose Gold • 39.9 mm x 10.9 mm |
| V. Mechanical Manufacture Calibre | Patek Philippe Cal. 26-330 S QA LU — 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 • 30m / 3 ATM |
| VIII. Dial Finishing, Bracelet & Hallmarked Clasp | 39.9 mm x 10.9 mm • Hand-Finished Collector Dial with Solid 18K Gold Applied Hour Markers & Hands • Integrated 18K Rose Gold Hand-Stitched Alligator / Elastomer Strap & Solid Gold Folding Clasp with Deep Laser Hallmarks |
Curated within our hallmarked solid 18K gold Patek Philippe collection, the Patek Philippe Aquanaut Luce Annual Calendar 18K Rose Gold Chronometer Regulated Spec Reference 5261R exemplifies haute horlogerie metallurgy in 18K Rose Gold Au750. Milled to exact manufacture geometry (39.9 mm x 10.9 mm), the monobloc middle case, Satin-Brushed Rounded Octagonal Bezel with Mirror-Polished Chamfered Bevels with Anti-Reflective Scratch-Resistant Sapphire Crystal, and Integrated 18K Rose Gold Hand-Stitched Alligator / Elastomer Strap & Solid Gold Folding Clasp with Deep Laser Hallmarks achieve a verified analytical mass of 104.9g on our Fischer XRF Au750 and Mettler-Toledo assay bench.
What Are the Horological & Metallurgical Benchmarks of Patek Philippe Aquanaut Ref. 5261R?
The Patek Philippe Aquanaut Reference 5261R is a precision-engineered luxury timepiece crafted in 18K Rose Gold Au750 (39.9 mm x 10.9 mm) with Hand-Finished Collector Dial with Solid 18K Gold Applied Hour Markers & Hands, Satin-Brushed Rounded Octagonal Bezel with Mirror-Polished Chamfered Bevels with Anti-Reflective Scratch-Resistant Sapphire Crystal, and a verified Mettler-Toledo mass of 104.9g, because its Patek Philippe Cal. 26-330 S QA LU movement is regulated across six positions to chronometric tolerances with a 72-hour power reserve.
5 Core Horological & Metallurgical Specifications:
- Entity & Reference: Patek Philippe Aquanaut Luce Annual Calendar 18K Rose Gold Chronometer Regulated Spec — Official Reference 5261R (SKU: PV-AU750-5261R-W650).
- Precious Metal Assay: 18K Rose Gold Au750 verified via non-destructive Fischer X-Ray Fluorescence spectroscopy.
- Gravimetric Parity: 104.9g total mass weighed on a calibrated Mettler-Toledo laboratory scale.
- Calibre & Oscillating System: Patek Philippe Cal. 26-330 S QA LU 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 30m / 3 ATM rating.
Within the Patek Philippe Aquanaut horological sub-silo, collectors also compare the Patek Philippe Aquanaut Luce Haute Joaillerie Baguette Emerald Bezel 18K White Gold Ref. 5268/461G-001 (114.2g) and the Patek Philippe Aquanaut Extra-Large Self-Winding 18K Rose Gold Ref. 5167/300R-010 (108.6g).
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- Homepage Master Register: Return to 18K SOLID GOLD Homepage (Complete 774-Watch Solid 18K Gold & Pt950 Register)
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- Metallurgical & Escrow Verification: Fischer XRF Au750 Protocol • 3-Year Mechanical Warranty • Insured Armored Delivery
What is the verified authentic gram weight of this Patek Philippe Ref. 5261R?
At 18K Solid Gold 18K Solid Gold Salon, this Patek Philippe Aquanaut Luce Annual Calendar 18K Rose Gold Chronometer Regulated Spec Ref. 5261R weighs 104.9g 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 5261R and what is its power reserve?
Reference 5261R is equipped with the Patek Philippe Cal. 26-330 S QA LU 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 Patek Philippe Aquanaut Ref. 5261R?
Reference 5261R combines Hand-Finished Collector Dial with Solid 18K Gold Applied Hour Markers & Hands and Satin-Brushed Rounded Octagonal Bezel with Mirror-Polished Chamfered Bevels with Anti-Reflective Scratch-Resistant Sapphire Crystal within a 39.9 mm x 10.9 mm 18K Rose Gold Au750 case weighing 104.9g, verified via Fischer XRF spectroscopy and powered by Patek Philippe Cal. 26-330 S QA LU.
Patek Philippe Aquanaut Luce Annual Calendar 18K Rose Gold Chronometer Regulated Spec Reference 5261R — Hallmarked Edition
Hallmarked Au750 & Pt950 Salon Edition • 104.9g Verified Mass • Patek Philippe Cal. 26-330 S QA LU