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Description
ZF Factory Rolex Sky-Dweller Ref. M336934 White Dial
ZF balances the intricate dial layout of the Sky-Dweller with a robust, functional movement architecture that achieves a highly accurate 13.9mm case thickness.
Powered by Clone 9002 Automatic
The Clone 9002 movement inside this model is a heavily modified automatic caliber designed to replicate the visual layout of Rolex��s most complex modern movement. Rather than attempting to clone the highly intricate and service-heavy Ring Command system, ZF opted for a stable gear train that isolates the timekeeping functions from the month indicator. This ensures the dual-time disc and date operate smoothly via the crown, preserving the longevity of the keyless works.
Standard Clone 9002 regulation: 卤10��15 seconds per day. The movement relies on a traditional balance wheel assembly, offering dependable daily performance when fully wound.
- �� Power Reserve: Approximately 36 hours
- �� Complications: Center hours, minutes, seconds, dual time zone via 24-hour disc, date, and manual month indicator.
- �� Winding Direction: Bidirectional automatic winding.
�� Function Adjustment Notice
- Month (Red Disc): Adjusted by rotating the bezel.
- Dual Time + Date + Time: Adjusted via the crown.
- Visual result: All complications are present and fully adjustable.
Technical Specifications
Precisely machined to a 42mm diameter and a notable 13.9mm thickness, weighing 156.7g. The case flanks feature a high-polish finish that accurately reflects the genuine piece��s dress-watch heritage.
The white dial exhibits sharp, raised typography and clean cutouts for the month apertures. Chromalight lume application is even across the hands and batons.
Visually identical to the Rolex Ring Command bezel, featuring deep fluting. Mechanically, it rotates smoothly to manually advance the red month indicator dot.
Constructed from solid 904L steel with polished center links and brushed outer links. The clasp mechanism operates with tight tolerances and minimal endplay.
Why ZF for This Reference?
Many collectors ask: ��Why not JVS or older Noob versions?��
While previous iterations from other factories struggled with excessive case thickness (often exceeding 14.5mm) to accommodate modified base movements, ZF has managed to keep the profile at a highly accurate 13.9mm. Furthermore, ZF��s dial printing and the crisp, matte texture of the off-center 24-hour ring remain the current benchmark for this complex reference.
Full Disclosure: The annual calendar complication is not fully cloned. The red month indicator is advanced manually by rotating the fluted bezel, rather than automatically via the gear train, and the bezel does not act as a function-selector for the crown.
LIVE PREVIEW
Data Sheet
| MODEL REFERENCE | Sky-Dweller M336934 |
| FACTORY / VERSION | ZF Factory Edition |
| MOVEMENT | Clone 9002 Automatic |
| CASE MATERIAL | 904L Oystersteel |
| WEIGHT & THICKNESS | 156.7g | 13.9mm |
| CRYSTAL & LUME | Scratch-Proof Sapphire with AR | Chromalight |
| DIMENSIONS | 42mm � 50.5mm � 13.9mmManual measurements �� minor tolerances apply. |
| WATER RESISTANCE | 30m Stated rating �� professional pressure test recommended before swimming |
Collector Q&A
Q: How does the bezel function on this ZF 9002 clone compared to the genuine?
A: On the genuine Rolex caliber 9002, the Ring Command bezel is rotated to select which function (date, local time, or reference time) the crown will adjust. On this ZF replica, the bezel is completely decoupled from the crown��s keyless works. Instead, rotating the bezel manually advances the red month indicator around the dial apertures.
Q: Is the 24-hour dual time disc fully functional?
A: Yes. The off-center 24-hour disc operates as a functional dual time zone indicator. It is adjusted directly via the winding crown, independent of the bezel position.
Q: Why is the power reserve approximately 36 hours instead of 72?
A: This model uses a heavily modified base caliber to support the unique Sky-Dweller dial layout. The additional friction and gearing required to drive the 24-hour disc and date mechanisms reduce the mainspring��s effective reserve to roughly 36 hours, which is standard for this specific clone architecture.
Q: What is the most notable tell on the ZF Sky-Dweller?
A: Mechanically, the lack of a true Ring Command system is the primary tell, though this is only noticeable when setting the watch. Visually, the depth of the 24-hour ring cutout and the exact hue of the red month indicator dot may exhibit minor variances under magnification when compared to genuine.