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Description
APSF Audemars Piguet Royal Oak Chronograph 26240BC
By integrating the true clone Calibre 4401, APSF achieves the correct 12.0mm case profile and eliminates the sunken date wheel flaw of modified 7750 bases.
Powered by True Clone Calibre 4401
The APSF Calibre 4401 represents a fundamental shift in Royal Oak Chronograph replicas, abandoning the thick A7750 architecture in favor of a bespoke clone movement. This caliber features a fully functional column wheel, ensuring crisp pusher engagement and precise sub-dial resetting. The integrated design allows the date disc to sit flush against the dial, correcting a major historical tell, while the custom rotor provides efficient automatic winding.
�� Accuracy Profile:
Rated at 卤10��15 seconds per day. The clone 4401 movement prioritizes architectural accuracy and proper sub-dial spacing over chronometer-grade timing, though it can be regulated by a watchmaker for tighter daily variance.
- �� Power Reserve: Approximately 36 hours
- �� Complications: 12-hour chronograph, 30-minute counter, small seconds, date display
- �� Winding Direction: Unidirectional winding rotor
Technical Specifications
THE BUILD316L Stainless Steel
Precisely milled to 41mm with a verified 12.0mm thickness. The case exhibits the signature brushed and polished alternating finishing, maintaining crisp transitions along the chamfers.
THE DIALGrande Tapisserie Pattern
Features a grey and black motif with accurate square dimensions. The applied hour markers and Royal Oak hands are treated with luminescent coating for low-light legibility.
THE BEZELOctagonal Steel
Standard 316L stainless steel with a vertical brushed top surface and polished flanks. Secured by eight correctly aligned hexagonal screws set flush to the bezel face.
THE BRACELETIntegrated AP Design
Engineered with tight end-link tolerances and fluid articulation. Secured by an AP-engraved double deployant clasp that snaps with firm, reassuring tension.
Why APSF for This Reference?
Many collectors ask: ��Why not ZF Factory?��
While ZF produces excellent standard Royal Oak models, APSF holds the distinct advantage for the 26240 chronograph series due to their exclusive Calibre 4401 clone. This movement allows APSF to achieve the verified 12.0mm genuine thickness, whereas alternative versions relying on modified 7750 movements are noticeably thicker and suffer from misaligned, sunken date windows.
Full Disclosure: The genuine 26240BC is cast in solid 18-carat white gold. This replica is milled from 316L stainless steel, resulting in a verified weight of 167.6 grams. It will feel noticeably lighter in hand than the authentic precious metal counterpart.
Data Sheet
| MODEL REFERENCE | Royal Oak Selfwinding Chronograph 26240BC |
| FACTORY / VERSION | APSF Edition |
| MOVEMENT | True Clone Calibre 4401 |
| CASE MATERIAL | 316L Stainless Steel |
| WEIGHT & THICKNESS | 167.6g | 12.0mm |
| CRYSTAL & LUME | Sapphire with Colorless AR | Super-LumiNova |
| DIMENSIONS | 41mm � 51.5mm � 12.0mmManual measurements �� minor tolerances apply. |
| WATER RESISTANCE | 30m stated �� professional pressure test recommended before swimming |
Collector Q&A
Q: Does the chronograph function work like the genuine Calibre 4401?
A: Yes, the APSF true clone Calibre 4401 features a fully functional column-wheel chronograph mechanism, allowing for smooth engagement and resetting of the 12-hour, 30-minute, and small seconds sub-dials.
Q: How does the thickness compare to older replica versions?
A: Previous replicas using modified A7750 movements were noticeably thicker. This APSF edition utilizes the custom 4401 clone, achieving the genuine-correct 12.0mm case profile.
Q: Is the date wheel sunken on this model?
A: No. The integrated nature of the clone Calibre 4401 resolves the sunken date wheel flaw that plagued earlier Royal Oak Chronograph replicas, bringing the date disc flush with the dial aperture.
Q: What is the main visual or tactile tell on this 26240BC replica?
A: The genuine reference 26240BC is constructed from solid 18-carat white gold. This APSF replica is milled from 316L stainless steel and weighs 167.6 grams, which will feel significantly lighter than the authentic precious metal counterpart.