Fischer XRF Au750 (75.0%) & Mettler-Toledo Gravimetric Verification
The Audemars Piguet Royal Oak Selfwinding Chronograph 41mm DiW Carbon Racer Edition 5-Axis CNC Case Reference 26240 is a direct Swiss foundry specimen engineered in Forged Carbon TPT & Titanium (41.0 mm x 12.4 mm) with a certified Mettler-Toledo mass of 65.9g, Fischer XRF Au750 metallurgical verification, and Audemars Piguet Cal. 4401 Flyback Chronograph running at 28,800 vph (+0.8 s/d, 298 deg) with a 72-hour power reserve and 50m / 5 ATM rating.
Catalogued in our direct Swiss foundry Audemars Piguet assay archive under Specimen Code LAB-CNC-26240-W119, this Audemars Piguet Royal Oak Selfwinding Chronograph 41mm DiW Carbon Racer Edition 5-Axis CNC Case Reference 26240 is smelted and CNC-machined in Forged Carbon TPT & Titanium (41.0 mm x 12.4 mm). Prior to archival release, the completed assembly is weighed on a calibrated Mettler-Toledo balance at 65.9g and scanned via non-destructive Fischer XRF spectroscopy.
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 65.9g, 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 Foundry & Laboratory Assay Specifications:
- Foundry Specimen Entity: Audemars Piguet Royal Oak Selfwinding Chronograph 41mm DiW Carbon Racer Edition 5-Axis CNC Case — Official Ref. 26240 (Specimen LAB-CNC-26240-W119).
- XRF Metallurgical Assay: Forged Carbon TPT & Titanium certified for elemental composition and hallmark integrity.
- Mettler-Toledo Mass: 65.9g verified gravimetric parity matching the authentic manufacture reference.
- Chronometric Calibre: Audemars Piguet Cal. 4401 Flyback Chronograph beating at 28,800 vph (4 Hz) with 72-hour reserve and +0.8 s/d, 298 deg Witschi trace.
- Optical & Pressure Testing: Double anti-reflective sapphire crystal, Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands, and 50m / 5 ATM barometric sealing.
Within the Audemars Piguet Royal Oak horological sub-silo, collectors also compare the Audemars Piguet Royal Oak Double Balance Wheel Openworked 41mm Ref. 15416CE (135.4g) and the Audemars Piguet Royal Oak Selfwinding Chronograph 41mm Sapphire Caseback Spec Ref. 26240ST (180.1g).
- Parent Brand & Royal Oak Silo Hub: Browse All 147 Certified Audemars Piguet Solid 18K Gold & Pt950 Watches
- Technical Research Monograph: Vacuum-Induction Au750 Gold Smelting & Zero-Porosity Casting (All 5 Journal Monographs)
- Homepage Master Register: Return to 18K FACTORY 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 laboratory instruments certify Reference 26240 (Audemars Piguet)?
Every 18K Factory specimen is verified on three calibrated instruments on 4K video: a Mettler-Toledo analytical balance (65.9g), a Fischer XRF spectrometer (Forged Carbon TPT & Titanium), and a Witschi Chronoscope (+0.8 s/d, 298 deg).
Does the 65.9g reading match the authentic original Audemars Piguet 26240 weight?
Yes. Our CNC foundry machines the Carbon TPT case and bracelet to replicate the exact 65.9g reference mass of the authentic manufacture timepiece.
What are the movement specifications for Reference 26240?
Reference 26240 is powered by the Audemars Piguet Cal. 4401 Flyback Chronograph operating at 28,800 vph (4 Hz) with a 72-hour power reserve, regulated across six positions to +0.8 s/d, 298 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 65.9g, 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 5-Axis CNC Case Ref. 26240 — XRF Certified Edition
Fischer XRF Verified Forged Carbon TPT & Titanium • Mettler-Toledo 65.9g • Audemars Piguet Cal. 4401 Flyback Chronograph
| Assay Specimen ID & Official Reference | Audemars Piguet — Royal Oak Selfwinding Chronograph 41mm | Ref. 26240 | SKU: LAB-CNC-26240-W119 |
|---|---|
| Fischer XRF Elemental Purity & Alloy | Forged Carbon TPT & Titanium — 5-Axis Swiss CNC Precision Architecture • 1:1 Authentic Reference Mass • Bespoke Collector Commission |
| Mettler-Toledo Gravimetric Mass (g) | 65.9g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| Bezel Tolerance, Gem-Setting & Case Dimension | Octagonal Brushed & Chamfered Bezel Locked by 8 White Gold Hexagonal Screws with Anti-Reflective Scratch-Resistant Sapphire Crystal • 65.9g Carbon TPT • 41.0 mm x 12.4 mm |
| Calibre Reference & Witschi Chronometry | Audemars Piguet Cal. 4401 Flyback Chronograph — Swiss Super Clone Mechanical Calibre Regulated to +0.8 s/d, 298 deg |
| Isochronism Frequency & Autonomous Power Reserve | 72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel |
| Double AR Sapphire Crystal & Barometric Rating | Scratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 50m / 5 ATM |
| Dial Metallurgy & Clasp Hallmark Verification | 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 |