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Description
Clean Factory Rolex Daytona Ref. 126503 Two-Tone Black Dial
The most mechanically and visually accurate representation of the updated 4131-generation two-tone Daytona currently available.
Powered by Clone Calibre 4131
The mechanical heart of this piece is a highly refined 1:1 clone of the modern Rolex Calibre 4131. It features a true vertical clutch and column-wheel chronograph mechanism, ensuring smooth pusher actuation without the stutter common in lesser movements. The architecture includes a paramagnetic blue Parachrom hairspring and KIF shock absorbers, meticulously finished to mirror the genuine caliber��s updated bridge layout and rotor design.
Regulated to approximately 卤5��8 seconds per day, representing excellent stability for a complex automatic chronograph clone.
- �� Power Reserve: Approximately 36 hours
- �� Complications: Central chronograph seconds, 30-minute counter, 12-hour counter, stop-seconds for precise time setting
- �� Winding Direction: Bidirectional automatic winding via perpetual rotor
Technical Specifications
40mm diameter with a refined profile matching the 126503 updates. Alternating brushed and polished surfaces mirror genuine finishing techniques.
Features precise concentric texturing on the sub-dials. The black base provides high contrast against the Chromalight-filled applied indices.
Accurately engraved tachymetric scale filled with correct contrasting lacquer. The gold tone is formulated to closely match Rolex��s proprietary yellow gold alloy.
Solid end links with tight case integration. Equipped with a folding Oysterlock safety clasp and a functional Easylink 5mm comfort extension link.
Why Clean Factory for This Reference?
Many collectors ask: ��Why not BTF?��
While both factories produce exceptional chronographs, Clean Factory is widely preferred for the 126503 generation due to its superior dial printing clarity. The crispness of the gold sub-dial rings and the accurate hand-stack height give it a distinct visual edge under macro inspection, passing with flying colors.
Full Disclosure: Because the center links and bezel are gold-plated 904L steel rather than solid 18k gold, the watch is slightly lighter than the genuine two-tone model.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | Daytona M126503-0003 |
| FACTORY / VERSION | Clean Factory 1:1 Edition |
| MOVEMENT | Clone Calibre 4131 Automatic |
| CASE MATERIAL | 904L Oystersteel & 18K Gold Plated |
| WEIGHT & THICKNESS | Approx. 145g | 11.9mm |
| CRYSTAL & LUME | Sapphire with laser-etched crown | Chromalight |
| DIMENSIONS | 40mm � 46.5mm � 11.9mmManual measurements �� minor tolerances apply. |
| WATER RESISTANCE | 50 meters �� professional pressure test recommended before swimming |
Collector Q&A
Q: Does the chronograph function exactly like the genuine Calibre 4131?
A: Yes. The clone 4131 movement features a fully operational column wheel and vertical clutch. The top pusher starts and stops the central seconds hand, and the bottom pusher resets it, alongside functioning 30-minute and 12-hour sub-dials.
Q: Will the 18k gold plating on the bracelet and bezel fade over time?
A: The factory utilizes a robust PVD gold-plating process over the 904L steel base. While highly durable for daily wear and resistant to fading, it is susceptible to deep scratches which could eventually reveal the stainless steel underneath.
Q: How does the case thickness compare to the authentic 126503?
A: Thanks to the true 1:1 clone movement, the case thickness is virtually identical to the genuine piece at approximately 11.9mm. This avoids the bulky, disproportionate profiles often seen in older Valjoux 7750-based replicas.
Q: Is there a noticeable weight difference due to the gold plating?
A: Yes. Because this replica uses gold-plated 904L steel rather than solid 18k gold for the center links and bezel, it weighs less than the genuine two-tone model. This mass disparity is an unavoidable limitation of all plated replicas.