Gravimetric Mass & Chronometric Assay Bulletin
The Audemars Piguet Royal Oak Selfwinding Chronograph 41mm DiW Carbon Racer Edition Reference 26240 is a hallmarked Forged Carbon TPT & Titanium haute horlogerie timepiece measuring 41.0 mm x 12.4 mm with a verified Mettler-Toledo mass of 66.0g, powered by Audemars Piguet Cal. 4401 Flyback Chronograph operating at 28,800 vph (+0.7 s/d, 297 deg) with a 72-hour power reserve, double anti-reflective sapphire crystal, and 50m / 5 ATM water resistance.
| I. Official Maison Entity & Reference | Audemars Piguet — Royal Oak Selfwinding Chronograph 41mm | Ref. 26240 | SKU: PV-CUST-26240-W118 |
|---|---|
| II. Precious Metal Alloy & Hallmark Assay | Forged Carbon TPT & Titanium — 5-Axis Swiss CNC Precision Architecture • 1:1 Authentic Reference Mass • Bespoke Collector Commission |
| III. Certified Gravimetric Mass (Mettler-Toledo) | 66.0g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| IV. Bezel Setting & Case Architecture | Octagonal Brushed & Chamfered Bezel Locked by 8 White Gold Hexagonal Screws with Anti-Reflective Scratch-Resistant Sapphire Crystal • 66.0g Carbon TPT • 41.0 mm x 12.4 mm |
| V. Mechanical Manufacture Calibre | Audemars Piguet Cal. 4401 Flyback Chronograph — Swiss Super Clone Mechanical Calibre Regulated to +0.7 s/d, 297 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 • 50m / 5 ATM |
| VIII. Dial Finishing, Bracelet & Hallmarked Clasp | 41.0 mm x 12.4 mm • Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands • Hand-Brushed & Chamfered Vulcanized Elastomer / Alligator Strap & Folding Clasp |
Curated within our hallmarked solid 18K gold Audemars Piguet collection, the Audemars Piguet Royal Oak Selfwinding Chronograph 41mm DiW Carbon Racer Edition Reference 26240 exemplifies haute horlogerie metallurgy in Forged Carbon TPT & Titanium. Milled to exact manufacture geometry (41.0 mm x 12.4 mm), the monobloc middle case, Octagonal Brushed & Chamfered Bezel Locked by 8 White Gold Hexagonal Screws with Anti-Reflective Scratch-Resistant Sapphire Crystal, and Hand-Brushed & Chamfered Vulcanized Elastomer / Alligator Strap & Folding Clasp achieve a verified analytical mass of 66.0g on our Fischer XRF Au750 and Mettler-Toledo assay bench.
What Are the Horological & Metallurgical Benchmarks of Audemars Piguet Royal Oak Ref. 26240?
The Audemars Piguet Royal Oak Reference 26240 is a precision-engineered luxury timepiece crafted in Forged Carbon TPT & Titanium (41.0 mm x 12.4 mm) with Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands, Octagonal Brushed & Chamfered Bezel Locked by 8 White Gold Hexagonal Screws with Anti-Reflective Scratch-Resistant Sapphire Crystal, and a verified Mettler-Toledo mass of 66.0g, because its Audemars Piguet Cal. 4401 Flyback Chronograph movement is regulated across six positions to chronometric tolerances with a 72-hour power reserve.
5 Core Horological & Metallurgical Specifications:
- Entity & Reference: Audemars Piguet Royal Oak Selfwinding Chronograph 41mm DiW Carbon Racer Edition — Official Reference 26240 (SKU: PV-CUST-26240-W118).
- Precious Metal Assay: Forged Carbon TPT & Titanium verified via non-destructive Fischer X-Ray Fluorescence spectroscopy.
- Gravimetric Parity: 66.0g total mass weighed on a calibrated Mettler-Toledo laboratory scale.
- Calibre & Oscillating System: Audemars Piguet Cal. 4401 Flyback Chronograph beating at 28,800 vph (4 Hz) with a 72-hour power reserve (+0.7 s/d, 297 deg).
- Crystal & Hermeticity: Scratch-resistant sapphire crystal with double anti-reflective coating and 50m / 5 ATM rating.
Within the Audemars Piguet Royal Oak horological sub-silo, collectors also compare the Audemars Piguet Royal Oak Double Balance Wheel Openworked 41mm Geneva Atelier Spec Ref. 15407ST.OO.1220ST.01 (162.4g) and the Audemars Piguet Royal Oak Selfwinding Chronograph 41mm DiW Carbon Racer Edition 5-Axis CNC Case Ref. 26240 (65.9g).
- Parent Brand & Royal Oak Silo Hub: Browse All 147 Certified Audemars Piguet 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 Audemars Piguet Ref. 26240?
At 18K Solid Gold 18K Solid Gold Salon, this Audemars Piguet Royal Oak Selfwinding Chronograph 41mm DiW Carbon Racer Edition Ref. 26240 weighs 66.0g on our Mettler-Toledo analytical balance, matching the exact factory mass of the authentic Carbon TPT reference.
How is the Forged Carbon TPT & Titanium 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 26240 and what is its power reserve?
Reference 26240 is equipped with the Audemars Piguet Cal. 4401 Flyback Chronograph operating at 28,800 vph (4 Hz) with a 72-hour power reserve, regulated in our Paris and Geneva workshop to +0.7 s/d, 297 deg.
What dial and bezel specifications distinguish Audemars Piguet Royal Oak Ref. 26240?
Reference 26240 combines Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands and Octagonal Brushed & Chamfered Bezel Locked by 8 White Gold Hexagonal Screws with Anti-Reflective Scratch-Resistant Sapphire Crystal within a 41.0 mm x 12.4 mm Forged Carbon TPT & Titanium case weighing 66.0g, verified via Fischer XRF spectroscopy and powered by Audemars Piguet Cal. 4401 Flyback Chronograph.
Audemars Piguet Royal Oak Selfwinding Chronograph 41mm DiW Carbon Racer Edition Reference 26240 — Salon Edition
Bespoke Atelier Salon Edition • 66.0g Verified Mass • Audemars Piguet Cal. 4401 Flyback Chronograph