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This is a genuine Rolex original part, the 3235-510 driving wheel for the ratchet wheel, a critical transmission component in Rolex‘s next-generation 32XX series automatic winding system. It transfers power from the oscillating weight (rotor) to the ratchet wheel to wind the mainspring, working in coordination with the two reversing wheels to ensure the automatic winding system consistently powers the movement, whether the rotor swings clockwise or counterclockwise.
As an authentic Rolex part, it is essential for the repair and servicing of Caliber 3235, 3230, 3255, and other 32 series movements.
Genuine Rolex Part – Swiss factory-original, perfect fit for 32XX calibers.
Core Automatic Winding Transmission – Transfers rotor power to the ratchet wheel for efficient bidirectional winding.
Works with Reversing Wheels – Coordinates with two reversing wheels for winding regardless of rotor direction.
Precision Gears – Finely machined teeth ensure smooth power transfer and low wear.
Essential for Service – When automatic winding efficiency drops or unusual noises occur, this wheel may need replacement.
| Parameter | Details |
|---|---|
| Part Name | Driving Wheel for Ratchet Wheel |
| Part Number | Rolex 3235-510 |
| Compatible Movements | Rolex Caliber 3230, 3235, 3255, 3285 and other 32XX automatic calibers |
| Function | Transfers rotor power to the ratchet wheel for automatic winding |
| Origin | Switzerland |
| Condition | Brand new, genuine |
Rolex Caliber 3235 (Datejust 41, Submariner Date, Sea‑Dweller)
Rolex Caliber 3230 (Oyster Perpetual, Submariner no-date)
Rolex Caliber 3255 (Day‑Date 40)
Rolex Caliber 3285 (GMT‑Master II)
Replacement of worn, broken, or damaged driving wheels during movement service
Repair of reduced automatic winding efficiency, unusual noises, or complete failure of automatic winding
1. Is this a genuine Rolex driving wheel?
Yes. It is a Swiss factory‑original part (3235-510) for 32XX calibers, not a copy.
2. What are the symptoms of a damaged driving wheel?
Symptoms: significantly reduced automatic winding efficiency (low power reserve despite wearing); unusual noises or grinding when the rotor turns; manual winding works but automatic winding does not.
3. What should I pay attention to during installation?
The driving wheel sits between the reversing wheels and the ratchet wheel. Clean the train and inspect the reversing wheels. Use the recommended lubrication (special grease). Professional installation is strongly recommended.
4. Does this driving wheel fit Caliber 3135?
No. The 32XX automatic module is completely different from 3135; not interchangeable.
5. Why does automatic winding still perform poorly after replacing the driving wheel?
The automatic system involves multiple parts (reversing wheels, driving wheel, ratchet wheel, rotor bearings). If the driving wheel is replaced but issues persist, inspect the reversing wheels for wear or the rotor bearings for binding – replace as needed.
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