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Description
QF Factory Rolex Day-Date 40 Ref. 228239 Tungsten Heavyweight Edition
The QF tungsten integration bridges the tactile gap between standard 904L steel replicas and solid 18k white gold genuine pieces.
Powered by Clone 3255 Caliber
The mechanical foundation of this reference is the Clone 3255 automatic movement, designed to replicate the operational feel of the genuine Rolex caliber. It features the signature instantaneous day and date jump at midnight, avoiding the slow date-wheel drag seen on lower-tier ETA modifications. The bridge architecture is engraved to mirror the genuine layout, and all mechanisms are verified under prior to dispatch. Upgraded rotor bearings ensure smoother bidirectional winding to compensate for the heavier case.
Rated at 卤10��15 seconds per day for this specific clone base movement, adjusted in multiple positions prior to shipping.
- �� Power Reserve: Approximately 36 hours
- �� Complications: Instantaneous Day & Date jump at midnight
- �� Winding Direction: Bidirectional
Technical Specifications
The case maintains the precise 40mm diameter and 12.5mm thickness of the genuine article, utilizing a dense tungsten alloy core to achieve a total weight of 184.8g.
Features a highly accurate radial sunburst finish. The stick indices are correctly proportioned and filled with Chromalight compound for an even blue emission.
The sharp fluted bezel is precision-machined and plated to mimic the distinct, slightly warmer hue of 18k white gold, providing accurate light dispersion.
Constructed with semi-circular three-piece links featuring brushed outer links and polished center links, secured by a well-toleranced concealed folding Crownclasp.
Why QF Factory for This Reference?
Many collectors ask: ��Why not GMF?��
While GMF produces excellent tungsten Day-Dates, QF achieves a denser core integration reaching approximately 185g (compared to GMF batches that frequently plateau around 165g-170g). This heavier mass provides a noticeably closer tactile match to the 210g genuine white gold piece, without sacrificing the 12.5mm case thickness.
Full Disclosure: The white gold plating tone on the fluted bezel can appear slightly warmer than genuine under harsh, direct fluorescent lighting.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | Day-Date 40 Ref. 228239 |
| FACTORY / VERSION | QF Factory Heavy Tungsten Edition |
| MOVEMENT | Clone 3255 Automatic |
| CASE MATERIAL | 904L Oystersteel with Tungsten Core |
| WEIGHT & THICKNESS | 184.8g | 12.5mm |
| CRYSTAL & LUME | Sapphire with 2.5x Cyclops | Chromalight (Blue) |
| DIMENSIONS | 40mm � 47.4mm � 12.5mmManual measurements �� minor tolerances apply. |
| WATER RESISTANCE | 30m �� professional pressure test recommended before swimming |
Collector Q&A
Q: How does the weight of this QF tungsten version compare to the genuine Day-Date 40?
A: This QF model weighs approximately 184.8g due to its tungsten core. While a genuine solid 18k white gold Day-Date 40 weighs around 210g, this is a substantial improvement over standard 140g steel replicas, offering a highly convincing on-wrist feel.
Q: Does the day and date change instantly at midnight?
A: Yes, the clone 3255 movement in this QF edition features the correct instantaneous day and date jump at midnight, replicating the mechanical behavior of the genuine caliber rather than slowly dragging over several hours.
Q: Is the fluted bezel made of solid white gold?
A: No, the fluted bezel is crafted from stainless steel and plated to simulate the hue of 18k white gold. Upgrading to a solid white gold aftermarket bezel is a common modification for collectors seeking optimal light dispersion.
Q: Are there any known issues with the hidden Crownclasp on this heavy version?
A: Due to the increased mass of the tungsten case and bracelet links, the hidden Crownclasp requires precise alignment when snapping shut. Over time, the tension blades may require minor manual adjustment to maintain a firm closure under the extra weight.