5-Axis CNC & Horological Architecture
The Custom Audemars Piguet Royal Oak Selfwinding Chronograph 41mm Free-Sprung Calibre Reference 26240CE is a 5-axis Swiss CNC commission machined in High-Tech Ceramic & Titanium (41.0 mm x 12.4 mm) weighing 149.4g on our Mettler-Toledo analytical balance, driven by Audemars Piguet Cal. 4401 Flyback Chronograph regulated to +0.4 s/d, 300 deg at 28,800 vph with a 72-hour power reserve beneath a double anti-reflective sapphire crystal.
| 01 / CNC Blueprint Entity & Reference | Audemars Piguet — Royal Oak Selfwinding Chronograph 41mm | Ref. 26240CE | SKU: AT-CNC-26240CE-W625 |
|---|---|
| 02 / 5-Axis CNC Metallurgy & Gold Purity | High-Tech Ceramic & Titanium — 5-Axis Swiss CNC Precision Architecture • 1:1 Authentic Reference Mass • Bespoke Collector Commission |
| 03 / Analytical Bench Weight (1:1 Reference Mass) | 149.4g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| 04 / Custom Bezel, Gem-Setting & Case Geometry | Octagonal Brushed & Chamfered Bezel Locked by 8 White Gold Hexagonal Screws with Anti-Reflective Scratch-Resistant Sapphire Crystal • 149.4g High-Tech Ceramic • 41.0 mm x 12.4 mm |
| 05 / Regulated Super Clone Movement Calibre | Audemars Piguet Cal. 4401 Flyback Chronograph — Swiss Super Clone Mechanical Calibre Regulated to +0.4 s/d, 300 deg |
| 06 / Barrel Power Reserve & Balance Frequency | 72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel |
| 07 / Optical Sapphire Crystal (Double AR) & Sealing | Scratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 50m / 5 ATM |
| 08 / Bespoke Dial & Integrated Bracelet Spec | 41.0 mm x 12.4 mm • Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands • Hand-Brushed & Chamfered Integrated Solid Link Bracelet & Deployant Clasp |
Engineered inside our Geneva 5-axis CNC Audemars Piguet custom atelier, the Custom Audemars Piguet Royal Oak Selfwinding Chronograph 41mm Free-Sprung Calibre Reference 26240CE is machined from solid High-Tech Ceramic & Titanium billets to micron-level tolerances (41.0 mm x 12.4 mm). Every bevel, lug chamfer, and Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands is hand-finished on our watchmaker bench, yielding a certified reference weight of 149.4g verified under our Fischer XRF and Mettler-Toledo QC protocol.
What Are the Horological & Metallurgical Benchmarks of Audemars Piguet Royal Oak Ref. 26240CE?
The Audemars Piguet Royal Oak Reference 26240CE is a precision-engineered luxury timepiece crafted in High-Tech Ceramic & 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 149.4g, because the Audemars Piguet Cal. 4401 Flyback Chronograph movement is regulated across six positions to chronometric tolerances with a 72-hour power reserve.
5 Core CNC & Chronometric Specifications:
- Blueprint Reference: Custom Audemars Piguet Royal Oak Selfwinding Chronograph 41mm Free-Sprung Calibre — Official Ref. 26240CE (SKU: AT-CNC-26240CE-W625).
- 5-Axis CNC Metallurgy: High-Tech Ceramic & Titanium case (41.0 mm x 12.4 mm) and Octagonal Brushed & Chamfered Bezel Locked by 8 White Gold Hexagonal Screws with Anti-Reflective Scratch-Resistant Sapphire Crystal with hand-polished chamfers.
- Verified Bench Mass: 149.4g confirmed on a Mettler-Toledo analytical gram scale prior to dispatch.
- Super Clone Calibre: Audemars Piguet Cal. 4401 Flyback Chronograph operating at 28,800 vph (4 Hz) with 72-hour power reserve and +0.4 s/d, 300 deg accuracy.
- Sapphire Optics & Sizing: Double anti-reflective sapphire crystal, 50m / 5 ATM sealing, and 19 wrist sizing options (14.0–22.0 cm).
Within the Audemars Piguet Royal Oak horological sub-silo, collectors also compare the Audemars Piguet Royal Oak Selfwinding 41mm Free-Sprung Calibre Ref. 15510ST (166.5g) and the Audemars Piguet Royal Oak Selfwinding 41mm Starry Sky Dial Ref. 15500 (166.7g).
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- Metallurgical & 4K QC Verification: Fischer XRF Au750 Protocol • 3-Year Mechanical Warranty • Insured Armored Delivery
How is the High-Tech Ceramic case of this Audemars Piguet 26240CE machined?
Our Geneva CNC specialists mill the monobloc middle case, bezel, and bracelet geometry on 5-axis Swiss machining centers in High-Tech Ceramic & Titanium to achieve the authentic 149.4g reference mass.
Can the bracelet or strap be pre-sized to my exact wrist circumference?
Yes. Choose from 19 precision wrist circumference options (14.0 cm to 22.0 cm, or full unsized factory length). All removed solid links are sealed inside your presentation box.
How is the Audemars Piguet Cal. 4401 Flyback Chronograph tested on the atelier workbench?
We record a personalized 4K bench video showing the Audemars Piguet Cal. 4401 Flyback Chronograph (28,800 vph, 72-hour reserve) running at +0.4 s/d, 300 deg on our Witschi Chronoscope alongside Fischer XRF and Mettler-Toledo gram scale verification.
What dial and bezel specifications distinguish Audemars Piguet Royal Oak Ref. 26240CE?
Reference 26240CE 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 High-Tech Ceramic & Titanium case weighing 149.4g, verified via Fischer XRF spectroscopy and powered by Audemars Piguet Cal. 4401 Flyback Chronograph.
Custom Audemars Piguet Royal Oak Selfwinding Chronograph 41mm Free-Sprung Calibre Ref. 26240CE
5-Axis Swiss CNC High-Tech Ceramic & Titanium • 149.4g Verified Mass • Regulated Audemars Piguet Cal. 4401 Flyback Chronograph