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This is a genuine ETA 2000-415 movement ratchet wheel (Article number: 16), a Swiss-made original component designed specifically for the ETA 2000 series automatic movement.
As part of the automatic winding mechanism, the ratchet wheel works in conjunction with the reversing wheel and mainspring barrel to efficiently transfer energy from the oscillating weight to the mainspring.
This essential replacement part is ideal for watchmakers and service centers performing restoration or maintenance on ETA 2000-415 calibers, ensuring proper winding function and reliable timekeeping.
Genuine ETA Part – Swiss factory-original for ETA 2000 series, not a copy.
Automatic Winding Core – Works with the reversing wheel to transfer rotor power to the mainspring barrel.
Precision Machined – Accurate gear teeth for smooth power transfer and low wear.
Essential for Service – Common failure point when automatic winding efficiency drops or fails.
Compatible Movement – Designed for ETA 2000 series automatic calibers (e.g., 2000-415).
| Parameter | Details |
|---|---|
| Part Name | Ratchet Wheel |
| Part Number | ETA 2000-415 (Article 16) |
| Compatible Movements | ETA 2000 series automatic (2000-415, etc.) |
| Function | Power transmission in automatic winding system |
| Origin | Switzerland |
| Condition | Brand new, genuine |
ETA 2000 series automatic movement (common in ladies‘ watches and small men’s watches, e.g., some Tissot, Mido, Longines models)
Repair of reduced automatic winding efficiency or rotor spinning without winding action
Replacement of worn, broken, or damaged ratchet wheels during movement service
1. Is this a genuine ETA part?
Yes. It is a Swiss ETA factory-original part (2000-415) for the ETA 2000 series.
2. What are the symptoms of a damaged ratchet wheel?
Symptoms: rotor spins normally but automatic winding is very poor (low power reserve); manual winding works but automatic does not; unusual noise or grinding during automatic winding.
3. What should I pay attention to during installation?
This wheel sits in the automatic module, working with the reversing wheel. Clean the train, inspect the reverser. Use recommended lubrication. Professional installation is strongly recommended.
4. Does this part fit other ETA 2000 sub‑calibers like 2000-413?
The automatic modules across the ETA 2000 series are generally interchangeable, but verify with the parts diagram.
5. When should it be replaced?
Inspect for worn, deformed, or broken teeth during service. If automatic winding fails after ruling out the reverser and rotor bearings, replace this wheel.
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