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Description
APSF Audemars Piguet Royal Oak 15500ST Silver-Toned Dial
APSF establishes the structural benchmark for the 15500ST reference through its true-clone Calibre 4302 and precise 10.4mm case profile.
Powered by Calibre 4302 Clone
The APSF edition is driven by a bespoke Calibre 4302 clone, engineered specifically for the 15500 reference. Unlike earlier iterations that relied on decorated Miyota 9015 base movements, this integrated architecture allows the date wheel to sit flush against the dial without a recessed appearance. The balance wheel operates at the correct 28,800 vibrations per hour (4Hz), and the expansive rotor spans the caseback accurately, mimicking the visual depth of the genuine movement.
Factory regulation for the APSF Calibre 4302 clone typically yields an accuracy of 卤10��15 seconds per day. The movement can be further regulated by a competent horologist to tighter tolerances.
- �� Power Reserve: Approximately 36 hours
- �� Complications: Hours, minutes, center seconds, and instant date
- �� Winding Direction: Bidirectional automatic winding
Technical Specifications
The case measures a verified 10.4mm in thickness, achieving the exact proportions of the genuine article. It features aggressive brushed surfacing contrasted by highly polished bevels along the lug flanks.
The dial exhibits a clean silver-white hue with accurate tapisserie depth. The concentric circles within the squares catch light dynamically, while the applied markers are filled with uniform Swiss-grade lume.
Exhibits vertical brushing that aligns perfectly with the case geometry. The eight white gold-plated hexagonal screws are correctly recessed and aligned in a precise circular formation.
APSF is renowned for its bracelet flexibility and finishing. The alternating brushed and polished finishing on the intermediate links provides exceptional light play, secured by a crisp double-deployant clasp.
Why APSF for This Reference?
Many collectors ask: ��Why not ZF?��
While ZF produces excellent Royal Oak variants, APSF holds the distinct advantage for the 15500 reference due to its proprietary Calibre 4302 movement architecture. This allows APSF to hit the verified 10.4mm thickness exactly, whereas older competitor batches using decorated plates often suffered from slightly thicker profiles and recessed date wheels. The bracelet articulation and edge beveling on the APSF also feel marginally smoother on the wrist.
Full Disclosure: The rotor on the APSF Calibre 4302 utilizes ceramic ball bearings that can produce a slight audible whirring during rapid wrist movements, a common trait among clone automatic movements.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | 15500ST.OO.1220ST.04 |
| FACTORY / VERSION | APSF Edition |
| MOVEMENT | Calibre 4302 Clone |
| CASE MATERIAL | 316L Stainless Steel |
| WEIGHT & THICKNESS | 168.3g | 10.4mm |
| CRYSTAL & LUME | Sapphire with AR | Super-LumiNova |
| DIMENSIONS | 41.0mm � 51.0mm � 10.4mmManual measurements �� minor tolerances apply. |
| WATER RESISTANCE | 30m �� professional pressure test recommended before swimming |
Collector Q&A
Q: How does the APSF Silver-Toned dial compare to the genuine 15500ST white dial?
A: The Grande Tapisserie pattern depth on the APSF is highly accurate, capturing the correct silver-white monochromatic tone. Under harsh direct sunlight, the metallic sheen may appear marginally warmer than the genuine, but indoors the tonal match is exceptionally close.
Q: Is the Calibre 4302 in the APSF a true clone or a decorated movement?
A: The APSF utilizes a true integrated clone Calibre 4302. This bespoke architecture ensures the date window is positioned exactly as per genuine and allows for the accurate 10.4mm case thickness, unlike older replicas that relied on decorated Miyota 9015 base movements.
Q: Are the bracelet links on the APSF interchangeable with genuine AP links?
A: While the brushed and polished alternating finishing closely mimics the genuine article, the internal pin-and-sleeve tolerances are proprietary to APSF��s manufacturing process. Mixing replica and genuine links is not recommended as it may compromise bracelet integrity.
Q: Does the rotor on the APSF 4302 movement make noticeable noise?
A: Yes, the heavy skeletonized rotor can exhibit a slight audible whirring on its ceramic ball bearings during rapid wrist movements. This is a known quirk of most high-beat clone automatic movements and can be mitigated by a horologist with light application of Moebius 9010 oil to the bearings.
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