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Description
APSF Audemars Piguet Royal Oak Chronograph 26240ST White Dial
The benchmark 41mm chronograph that resolves the subdial spacing and thickness constraints of older replicas via a true 4401 clone architecture.
Inside the Super Clone Calibre 4401
The development of the clone 4401 movement marks a critical shift from modular chronograph bases to integrated clone architectures. By eliminating the thick module plates required by modified 7750 movements, this caliber allows the case to sit at a true 12.4mm. It features a fully functional column-wheel style chronograph mechanism and the correct standard gold rotor matching current boutique specifications. Every movement undergoes rigorous testing to meet before dispatch.
�� Accuracy Profile:
The clone 4401 caliber is typically regulated to operate within 卤10��15 seconds per day, offering stable amplitude and reliable chronograph engagement.
- �� Power Reserve: Approximately 36 hours
- �� Complications: Fully functional chronograph, instant-jump date, small seconds
- �� Winding Direction: Unidirectional
The Technical Breakdown
THE BUILD316L Stainless Steel
Measuring exactly 41mm in diameter and 12.4mm thick, the case exhibits precise brushed and polished alternating finishing on the flanks and lug chamfers.
THE DIALSilver-Toned Grande Tapisserie
Crisp white/silver dial featuring sharp square textures, correct subdial concentric circular graining, and evenly applied luminous markers.
THE BEZELSignature Octagon Steel
Vertical brushed finish across the top surface, contrasted by polished, recessed hexagonal screws set to the correct depth.
THE BRACELETIntegrated Steel Bracelet
Demonstrates tight tolerances at the case integration point, featuring fluid link articulation and a secure double-deployant clasp.
Why APSF for This Reference?
A question that comes up often: ��Why not ZF?��
While ZF produces excellent three-hand Royal Oak variants, APSF holds a distinct advantage for the 26240 chronograph due to their integration of the custom 4401 clone movement. This allows APSF to achieve the exact 12.4mm case thickness and correct subdial spacing, whereas alternative factory versions often rely on thicker, modified 7750 movements that distort the dial layout.
One Caveat: The date wheel font on the APSF edition can occasionally appear marginally thicker than genuine under high magnification.
LIVE PREVIEW
At a Glance
| MODEL REFERENCE | 26240ST.OO.1320ST.06 |
| FACTORY / VERSION | APSF Edition |
| MOVEMENT | Super Clone Calibre 4401 |
| CASE MATERIAL | 316L Stainless Steel |
| WEIGHT & THICKNESS | ~175g | 12.4mm |
| CRYSTAL & LUME | Sapphire with Colorless AR | SuperLuminova |
| DIMENSIONS | 41.0mm � 51.5mm � 12.4mmManual measurements �� minor tolerances apply. |
| WATER RESISTANCE | 30m / 3 ATM �� a professional water-resistance check is recommended before submersion |
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What Buyers Ask
Q: Does the APSF 26240 have the correct subdial spacing?
A: Yes. Unlike older replicas that used a modified 7750 movement resulting in sunken or closely spaced subdials, the APSF utilizes a custom clone 4401 movement to match the exact subdial layout and spacing of the genuine piece.
Q: Is the case thickness accurate to the genuine 26240?
A: Yes, the integration of the clone 4401 movement allows the APSF case to measure exactly 12.4mm thick, which is virtually identical to the genuine specification.
Q: Which rotor does this APSF version feature?
A: This specific model features the standard ��regular�� gold-toned rotor, matching current boutique specifications for non-50th anniversary production runs.
Q: Are there any known quirks with the APSF clone 4401 movement?
A: The clone 4401 movement is highly complex. While it functions accurately as a chronograph, the rotor can be slightly audible during rapid wrist movement, and the date wheel font may appear marginally thicker than genuine under a loupe.