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Description
APSF Audemars Piguet Royal Oak Offshore 26420 Blue Dial
An uncompromising execution of the Calibre 4401, offering genuine flyback functionality within a dimensionally accurate 16.4mm case profile.
Powered by Super Clone Calibre 4401
The integration of the Super Clone Calibre 4401 represents a pivotal shift in Offshore replication. By discarding the modular Asian 7750 approach, APSF has engineered a movement that accurately mirrors the genuine architecture, complete with a functional flyback mechanism. This allows the chronograph to be reset and restarted instantly with a single pusher actuation. The caliber is heavily decorated, featuring a skeletonized 22K-style rotor, precise anglage on the bridges, and C么tes de Gen猫ve striping that aligns cohesively across the movement plates.
�� Accuracy Profile:
Regulated prior to dispatch, this complex chronograph caliber typically operates within a tolerance of 卤10��15 seconds per day, consistent with high-beat clone mechanical standards.
- �� Power Reserve: Approximately 36 hours
- �� Complications: True flyback chronograph, 12-hour and 30-minute totalizers, instantaneous date display.
- �� Winding Direction: Unidirectional winding efficiency via the central micro-bearing rotor.
Technical Specifications
THE BUILD316L Stainless Steel
Machined to an exact 16.4mm thickness, the case exhibits rigorous alternating brushed and polished finishes. The 182.1g total mass provides a substantial, authentic wrist presence.
THE DIALM茅ga Tapisserie
The deeply textured navy blue dial features sharp guilloch茅 squares, correctly proportioned rhodium-toned subdials, and uniform luminous application on the applied white gold-style indices.
THE BEZELSteel Octagonal Profile
Finished with a vertical brush on the flat surface and high-polish on the chamfered edges. The eight hexagonal screws are correctly recessed and aligned parallel to the dial curvature.
THE BRACELETIntegrated System
Available on a high-density rubber strap or steel bracelet, featuring a precisely engineered deployant clasp with minimal lateral endplay at the lug connection points.
Why APSF for This Reference?
Many collectors ask: ��Why not ZF?��
While ZF produces excellent Offshore models, APSF holds a distinct advantage in the 26420 reference due to their proprietary Calibre 4401 clone. This movement allows APSF to achieve the precise 16.4mm case thickness and correct subdial spacing without the sunken date wheel artifact commonly seen on modular chronograph alternatives. The execution of the true flyback function further cements this version as the technical superior.
Full Disclosure: The rotor bearing on the clone 4401 is known to produce slightly more audible freewheeling noise than the genuine AP caliber, a common trait among high-beat replica chronographs.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | Royal Oak Offshore 26420 |
| FACTORY / VERSION | APSF Edition |
| MOVEMENT | Super Clone Calibre 4401 |
| CASE MATERIAL | 316L Stainless Steel |
| WEIGHT & THICKNESS | 182.1g | 16.4mm |
| CRYSTAL & LUME | Sapphire with AR | Super-LumiNova |
| DIMENSIONS | 42.0mm � 52.0mm � 16.4mmManual measurements �� minor tolerances apply. |
| WATER RESISTANCE | 50m stated rating �� professional pressure test recommended before swimming |
Collector Q&A
Q: Does the flyback chronograph function work exactly like the genuine AP 4401?
A: Yes, the APSF Calibre 4401 is a true clone. You can press the lower reset pusher while the chronograph is running to instantly restart the timing sequence without needing to stop it first.
Q: Is the case thickness accurate to the genuine 26420?
A: Yes, the APSF version measures exactly 16.4mm thick, matching the genuine profile. Older modular 7750 replicas often exceeded 17mm to accommodate the extra gearing.
Q: Are the strap options interchangeable with genuine AP straps?
A: The APSF integrated strap system is built to 1:1 specifications, meaning genuine Royal Oak Offshore 42mm straps designed for this generation will fit the replica case lugs.
Q: What is the main known flaw of this APSF release?
A: The primary characteristic to note is the rotor noise. Because the clone 4401 uses a heavy micro-bearing rotor to maintain winding efficiency, it produces a more audible whirring sound during rapid wrist movements compared to the genuine caliber.
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