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Description
APSF Audemars Piguet Royal Oak Offshore Diver 15720ST
APSF establishes the benchmark for the 15720 reference by abandoning decorated base movements in favor of a structurally accurate Caliber 4308 clone.
Powered by Caliber 4308 True Clone
The mechanical core of this replica is the highly regarded Caliber 4308 true clone. By developing the movement architecture from the ground up, APSF has eliminated the need for superficial decoration plates that previously added unwanted thickness to Offshore replicas. The result is a caliber that not only visually mimics the genuine article��complete with a beautifully finished 22K pink gold-toned oscillating weight and perlage finishing��but also operates with an instantaneous date flip mechanism. The balance wheel is correctly positioned, offering genuine structural accuracy visible through the exhibition caseback.
This custom clone movement is factory-regulated to operate within a tolerance of 卤10��15 seconds per day under normal wearing conditions.
- �� Power Reserve: Approximately 36 hours
- �� Complications: Instantaneous date, center seconds, and inner rotating diving scale
- �� Winding Direction: Bidirectional automatic winding
Technical Specifications
The 42mm case is machined to precise tolerances, achieving the verified 13.8mm thickness and 170g weight. It features the signature alternating brushed surfaces and polished chamfers characteristic of the Offshore line.
The intricate dial texture is sharply pressed, displaying deep three-dimensional squares. Applied hour-markers are filled with luminescent coating, ensuring high legibility against the deep black background.
The iconic octagonal outer bezel features perfectly aligned hexagonal screws. The inner rotating diving scale is operated smoothly via the screw-locked crown located at the 10 o��clock position.
Fitted with a supple black rubber strap, utilizing APSF��s fully functional quick-release system for tool-free strap changes. Secured by a robust stainless steel pin buckle.
Why APSF for This Reference?
Many collectors ask: ��Why not ZF?��
While ZF produces an excellent Royal Oak Offshore, APSF holds a distinct advantage with the 15720 reference due to its movement architecture. By utilizing the true clone Caliber 4308 without the added thickness of cosmetic decoration plates, APSF achieves a highly accurate 13.8mm case profile. Furthermore, the tolerances on APSF��s quick-release strap mechanism provide a secure lock with minimal lateral play, closely mimicking the genuine engineering.
Full Disclosure: The tactile feedback of the 10 o��clock crown for the inner rotating bezel lacks the heavy, hydraulic damping felt on the genuine article, feeling slightly lighter during adjustment.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | 15720ST.OO.A002CA.01 |
| FACTORY / VERSION | APSF Edition |
| MOVEMENT | Caliber 4308 True Clone Automatic |
| CASE MATERIAL | 316L Stainless Steel |
| WEIGHT & THICKNESS | 170g | 13.8mm |
| CRYSTAL & LUME | Sapphire with AR Coating | Super-LumiNova |
| DIMENSIONS | 42mm � 52mm � 13.8mmManual measurements �� minor tolerances apply. |
| WATER RESISTANCE | Stated 50m �� professional pressure test recommended before swimming |
Collector Q&A
Q: Does the quick-release strap system on this APSF 15720 work with genuine AP straps?
A: Yes, APSF has engineered the quick-release mechanism to strict tolerances, allowing seamless interchangeability with genuine Audemars Piguet rubber and leather straps designed for the current Offshore 42mm generation.
Q: How does the true clone Caliber 4308 differ from previous replica versions?
A: Earlier replicas relied on Miyota 9015 movements fitted with superficial decoration plates to mimic the AP caliber. This APSF version uses a true clone architecture, eliminating the plates for a more accurate case thickness (13.8mm) and correct balance wheel positioning visible through the caseback.
Q: Is the inner rotating dive bezel fully functional?
A: Yes, the inner dive scale is operated via the screw-down crown at 10 o��clock. It rotates smoothly to track dive times, functioning exactly like the genuine mechanism.
Q: What is the most noticeable tell or flaw on this specific APSF model?
A: While the dial texture and movement architecture are highly accurate, the tactile feedback of the 10 o��clock crown lacks the heavy, damped hydraulic resistance of the genuine piece, feeling slightly lighter during adjustment.
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