Q-Factory Rolex Daytona M126518LN ‘Golden Noir’ — 155g Tungsten Edition
The integration of a high-density tungsten-steel architecture makes this the most tactilely accurate precious metal Daytona replica currently available.
Powered by Clone Calibre 4131
The mechanical core of this reference is the clone Calibre 4131, designed to replicate the architecture of the updated genuine movement. It incorporates a skeletonized rotor and refined bridge finishing visible upon caseback removal. The vertical clutch mechanism ensures the central chronograph hand sweeps smoothly upon activation, avoiding the initial lateral jump associated with older chronograph designs. Every piece undergoes rigorous testing to meet our strict QC standards prior to dispatch.
⏱ Accuracy Profile:
±5–8 seconds per day. The clone 4131 is regulated in multiple positions to ensure stable amplitude when the chronograph complication is both engaged and disengaged.
- ✅ Power Reserve: Approximately 36 hours
- ✅ Complications: Center hour, minute and seconds hands, small seconds hand at 6 o’clock. Chronograph (center hand) accurate to within 1/8 of a second, 30-minute counter at 3 o’clock and 12-hour counter at 9 o’clock.
- ✅ Winding Direction: Bidirectional
Technical Specifications
THE BUILDTungsten-Steel Alloy (18K PVD)
Measuring 40mm in diameter and 11.9mm thick, the high-density construction achieves a net weight of ~155g, replicating the specific gravity of solid gold.
THE DIALBright Black & Golden Noir
Features a deep black lacquer base with golden sub-dial rings. Text printing is crisp, and markers are applied with blue Chromalight luminescence.
THE BEZELBlack Cerachrom Insert
High-tech ceramic insert with a molded tachymetric scale. The recessed numerals are filled with a precise layer of PVD gold to match the genuine aesthetic.
THE BRACELETOysterflex-Style Elastomer
Constructed with internal metal blades overmolded with high-performance elastomer. Secured by a well-toleranced 18K gold-plated Oysterlock safety clasp.
Why Q-Factory for This Reference?
Many collectors ask: ‘Why not Clean Factory?’
While Clean Factory produces exceptional Daytona clones, their standard 904L steel cases weigh approximately 100g, creating an immediate tactile tell when handling a watch that should be solid gold. The Q-Factory tungsten-weighted case achieves 155g, sitting on the wrist with the specific gravity and authority of the genuine article without compromising on the 11.9mm case thickness.
Full Disclosure: The double-layer 18K gold PVD, while vibrant and durable, can appear marginally warmer in direct, harsh sunlight compared to the slightly muted tone of genuine Rolex 18K yellow gold alloy.
Data Sheet
| MODEL REFERENCE |
Daytona 126518LN |
| FACTORY / VERSION |
Q-Factory 2026 Weighted Edition |
| MOVEMENT |
Clone Calibre 4131 Automatic |
| CASE MATERIAL |
Tungsten-Steel Alloy (18K Gold PVD) |
| WEIGHT & THICKNESS |
~155g | 11.9mm |
| CRYSTAL & LUME |
Sapphire with AR | Blue Chromalight |
| DIMENSIONS |
40mm × 46.5mm × 11.9mmManual measurements — minor tolerances apply. |
| WATER RESISTANCE |
30m stated rating — professional pressure test recommended before swimming |
Collector Q&A
Q: Does the Q-Factory 126518LN actually weigh the same as the genuine 18K gold Daytona?
A: The genuine 18K gold Daytona on an Oysterflex strap weighs approximately 160-165 grams. This Q-Factory tungsten-weighted edition reaches approximately 155 grams, making it nearly indistinguishable on the wrist compared to standard 100-gram steel replicas.
Q: Are the chronograph sub-dials fully functional on this Calibre 4131 clone?
A: Yes. The clone Calibre 4131 utilizes a working column wheel and vertical clutch mechanism. The 3 o’clock sub-dial tracks 30-minute intervals, and the 9 o’clock sub-dial tracks 12-hour intervals, identical to the genuine movement.
Q: How durable is the 18K gold PVD plating on the tungsten case?
A: Q-Factory utilizes a double-layer PVD process infused with real 18K gold. While highly resistant to daily wear and corrosion, it is a plated surface and can scratch if subjected to abrasive materials, potentially revealing the steel-tungsten base underneath.
Q: Is the rotor noise noticeable on this tungsten edition?
A: Due to the high-density tungsten case, rotor noise is significantly dampened compared to standard steel models. However, in a completely silent room, a faint metallic bearing sound can still be heard during vigorous wrist movement, which is a known quirk of clone automatic chronograph calibers.
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