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This is a Generic Third Wheel designed to fit the Rolex Caliber 3135 automatic movement, part number 3135-340. In the movement’s gear train layout, the third wheel sits between the great wheel and the fourth wheel, transmitting power from the great wheel onward to the fourth wheel and ultimately to the escapement. Manufactured to OEM replacement specifications, it is a cost-effective alternative for replacing a worn or damaged original Third Wheel during professional service.
Generic Replacement – Designed for Rolex 3135 movements; non‑original but matches OEM dimensions and gear specs.
Key Gear Train Component – Sits between the great wheel (or second wheel) and the fourth wheel, ensuring smooth power transmission.
Precision Manufactured – Made of quality steel with precisely cut teeth for stable meshing.
Cost‑Effective – More affordable than genuine parts for movement service or repair.
Direct Replacement – Same mounting as the original; no modification required.
| Parameter | Details |
|---|---|
| Part Name | Third Wheel |
| OEM Reference | Rolex 3135-340 |
| Compatible Movement | Rolex Caliber 3135 automatic |
| Material | Quality steel |
| Function | Transmits power from great wheel to fourth wheel |
Rolex Caliber 3135 automatic (e.g., Submariner Date, Datejust, Sea‑Dweller models with 3135)
Replacement of worn or damaged third wheel during full movement service
Repair of inaccurate timekeeping or poor power transmission caused by third wheel issues
Also compatible with 3135‑based calibers like 3136 (verify with parts diagram)
1. Is this a genuine Rolex third wheel?
No. It is a generic aftermarket replacement, not original, but matches the OEM dimensions and gear specs for Caliber 3135.
2. What are the symptoms of a damaged third wheel?
Symptoms: very slow running or stoppage; poor power transmission after winding; unusual noise or hesitation in the gear train.
3. What should I pay attention to during installation?
The third wheel sits between the great wheel (or second wheel) and the fourth wheel. Ensure both pivots drop into jewels and the teeth mesh correctly. Professional installation is strongly recommended.
4. Does this third wheel fit other calibers like 3130?
The 3130 (no‑date) shares a similar gear train; the third wheel is generally compatible. For 3136, verify with the parts diagram. Not for 3235 or newer calibers.
5. When should the third wheel be replaced?
Inspect for worn, deformed, or broken teeth; bent or worn pivots. If accuracy cannot be restored after servicing other components, replace the third wheel.
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