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This is a genuine Swiss-made ETA 2892-420 crown wheel, a critical component in the keyless works of the ETA 2892 / 2892-A2 automatic movements. As a bidirectional transmission hub, it receives torque from the stem and transmits power through its outer teeth to the winding train, driving the ratchet wheel to wind the mainspring. It also affects hand-setting feel. Brand new, genuine ETA.
Model: ETA 2892-420
Type: Crown Wheel
Compatible with: ETA 2892 / 2892-A2
Function: Bidirectional transmission hub, keyless works component
Features: Precision-machined, genuine quality
Origin: Made in Swiss
Condition: Brand new, genuine ETA
1. Is it genuine?
Yes, genuine ETA, made in Swiss, brand new.
2. How is the quality?
Precision-machined, genuine quality, ensuring smooth winding and hand-setting feel.
3. What is it suitable for?
Ideal as a crown wheel replacement for the ETA 2892 / 2892-A2.
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