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Description
VSF Rolex Daytona 126518LN Caliber 4131
A definitive horological reproduction defined by its true-to-spec 11.8mm case profile and advanced integrated chronograph movement.
Powered by Dandong Caliber 4131
The integration of the Dandong Caliber 4131 marks a pivotal shift in Daytona replicas, moving past the previous 4130 architecture. This movement features an optimized ball-bearing rotor and a redesigned bridge layout that accurately mirrors the genuine Rolex caliber. Equipped with a paramagnetic blue Parachrom hairspring and KIF shock absorbers, the mechanism ensures precise engagement of the vertical clutch and column wheel, eliminating the stutter commonly found in inferior chronograph clones. All components are subjected to to verify amplitude and beat error prior to dispatch.
Rated at 卤3��5 seconds per day. The Dandong 4131 is heavily regulated at the factory level, providing chronometer-adjacent performance when fully wound.
- �� Power Reserve: 60+ Hours (Dandong clone caliber)
- �� Complications: Central chronograph seconds, 30-minute counter, 12-hour counter, stop-seconds function
- �� Winding Direction: Bidirectional automatic winding via Perpetual rotor
Technical Specifications
Constructed with an exact 40mm diameter and a precise 11.8mm thickness. The case achieves a total weight of 136.6g, balancing structural integrity with the aesthetics of precious metal.
Features sharp, multi-layered printing and applied indices filled with Chromalight. The sub-dial concentric texturing is highly accurate, matching the depth of the genuine reference.
The monobloc Cerachrom bezel features a molded tachymetric scale. The recessed numerals are coated via PVD with a fine layer of gold dust to match the case tone.
High-performance elastomer molded over flexible titanium/nickel alloy blades. Secured by an 18K plated Oysterlock folding safety clasp with Glidelock extension system.
Why VSF for This Reference?
Many collectors ask: ��Why not Clean Factory?��
While Clean Factory produces an exceptional Daytona dial and case shape, VSF holds a distinct advantage with the Dandong 4131 caliber. The VSF iteration achieves the exact 11.8mm thickness of the newly updated genuine reference, whereas some competitors struggle with crystal height and rotor noise. The Dandong movement��s power reserve and long-term reliability make it the superior choice for mechanical purists.
Full Disclosure: At 136.6 grams, this 904L steel-core replica is noticeably lighter than the genuine 18K solid gold model, which weighs upwards of 160 grams on an OysterFlex strap. Additionally, the gold plating will require careful maintenance to prevent wear over time.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | Daytona 126518LN-0004 |
| FACTORY / VERSION | VSF 4131 Edition |
| MOVEMENT | Dandong Caliber 4131 Clone |
| CASE MATERIAL | 904L Oystersteel (18K Gold Plated) |
| WEIGHT & THICKNESS | 136.6 g | 11.8 mm |
| CRYSTAL & LUME | Sapphire | Chromalight |
| DIMENSIONS | 40 mm � 46.5 mm � 11.8 mmManual measurements �� minor tolerances apply. |
| WATER RESISTANCE | 50 meters �� professional pressure test recommended before swimming |
Collector Q&A
Q: How does the weight of the VSF 126518LN compare to the genuine Rolex?
A: This VSF replica weighs precisely 136.6 grams. Because it uses a 904L Oystersteel core with 18K gold plating, it is lighter than the genuine solid 18K gold model, which typically weighs over 160 grams when fitted on the OysterFlex strap.
Q: What are the technical differences between the Dandong 4131 and the older 4130 clone?
A: The Dandong 4131 clone features an updated automatic winding bridge and an optimized ball-bearing rotor system, mimicking Rolex��s recent caliber updates. It maintains the vertical clutch and column wheel architecture of the 4130 but improves overall aesthetic accuracy and rotor efficiency.
Q: Can the OysterFlex strap on this VSF Daytona be adjusted for smaller wrists?
A: The OysterFlex elastomer strap includes internal flexible metal blades, meaning it cannot be cut. Fine adjustments can be made via the Glidelock system in the 18K plated folding clasp, but significant resizing requires sourcing alternate strap lengths.
Q: Will the 18K gold plating on the case and clasp fade over time?
A: While VSF applies a robust layer of 18K gold plating via PVD, it is still a surface treatment. Friction points, particularly on the clasp and sharp case edges, may show signs of wear or expose the steel core after prolonged daily use or exposure to harsh chemicals.
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