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Description
VSF Rolex Cosmograph Daytona 116519LN Black Diamond Dial
VSF pairs the peerless Dandong 4130 caliber with a true-to-spec 11.6mm case, setting a high technical benchmark for the Oysterflex Daytona.
Powered by Custom Dandong 4130
The mechanical core of this reference is the highly regarded Dandong 4130 clone caliber, recognized across horological forums as the premier Daytona replica movement. It utilizes a genuine vertical clutch and column wheel design, ensuring the chronograph seconds hand starts without the initial jump common to lesser modified 7750 movements. The architecture includes the correct hand stack and ultra-quiet rotor oscillation, all subjected to before dispatch.
VSF Dandong calibers are typically regulated to 卤3��5 seconds per day, well within standard chronometer parameters, offering superior stability compared to standard clone base movements.
- �� Power Reserve: 60+ Hours (Dandong clone caliber)
- �� Complications: Fully functional chronograph, sweeping center seconds, 30-minute counter, 12-hour counter
- �� Winding Direction: Bidirectional automatic winding
Technical Specifications
The 40mm case measures exactly 11.6mm thick, matching genuine tolerances. It features alternating brushed and polished surfaces, though the total weight is 111.2g due to the steel substrate.
Features a deep black base with accurate subdial ring textures. The diamond-set hour markers are well-aligned, complemented by Chromalight application on the hands.
The fixed ceramic tachymetric bezel offers sharp, deep engravings. The numerals are treated with a platinum dust coating to replicate the genuine luster and prevent fading over time.
Constructed with flexible metal blades encased in high-performance elastomer. It secures via an 18k white gold-plated Glidelock deployant clasp with minimal endplay tolerance.
Why VSF for This Reference?
Many collectors ask: ��Why not Clean Factory?��
While Clean Factory (CF) produces an exceptional Daytona, VSF holds a distinct advantage in crystal clarity and out-of-the-box movement finishing. The sapphire crystal on the VSF 116519LN lacks the milky edge occasionally observed on CF batches, allowing the black diamond dial to present with deeper contrast and superior legibility.
Full Disclosure: Because the case is machined from 904L steel rather than solid 18k white gold, the watch weighs 111.2 grams��noticeably lighter than the genuine piece. Additionally, the white gold plating has a slightly cooler visual temperature under direct halogen lighting compared to factory Rolex gold.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | 116519LN-0025 |
| FACTORY / VERSION | VSF Edition |
| MOVEMENT | Dandong 4130 Automatic |
| CASE MATERIAL | 904L Oystersteel (18k WG Plated) |
| WEIGHT & THICKNESS | 111.2g | 11.6mm |
| CRYSTAL & LUME | Sapphire with AR | Chromalight |
| DIMENSIONS | 40mm � 46.5mm � 11.6mmManual measurements �� minor tolerances apply. |
| WATER RESISTANCE | 30m stated rating �� professional pressure test recommended before swimming |
Collector Q&A
Q: How does the weight of this VSF 116519LN compare to the genuine watch?
A: The genuine 116519LN is cast in solid 18k white gold and weighs significantly more than this replica. This VSF edition is constructed from 904L steel with an 18k white gold plating, resulting in a total weight of 111.2 grams.
Q: Are the chronograph functions fully operational?
A: Yes. The Dandong 4130 movement features a true column wheel and vertical clutch, allowing the 30-minute and 12-hour subdials to function exactly like the genuine caliber without risking movement damage.
Q: How does the VSF Oysterflex strap sizing work compared to genuine?
A: The VSF Oysterflex strap utilizes an internal metal blade encased in elastomer, similar to genuine. However, sizing options are less granular out of the box. You may need to utilize the Glidelock clasp for micro-adjustments to achieve the optimal fit.
Q: What is the main visual flaw of this specific factory replica?
A: While the black diamond dial and 11.6mm case thickness are highly accurate, the 18k white gold plating on the steel case has a slightly cooler tone than solid Rolex white gold under direct sunlight, and the synthetic diamond hour markers lack the exact refractive index of genuine factory stones.
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