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This is a genuine OEM setting lever, Ref. 4130-220 (also B4130-220-Y1), made in Switzerland for the Calibre 4130 automatic chronograph movement and its derivative Calibre 4161. A critical keyless works element, it transmits axial stem motion to the sliding pinion and yoke, enabling winding, time-setting, and calendar/chronograph function positions. Exact-match, drop-in replacement.
Model: Rolex 4130-220 (B4130-220-Y1)
Type: Setting Lever
Compatible with: Rolex Calibre 4130 / 4161
Function: Transmits stem motion, selects winding/setting/chrono positions
Features: OEM, exact-match, drop-in replacement
Origin: Made in Swiss
1. Is it genuine?
This is an aftermarket part, not in original packaging, but dimensions and specifications exactly match the original.
2. How is the quality?
Precision-machined, ensuring smooth keyless works and reliable mode switching.
3. What is it suitable for?
Ideal for keyless works repair and replacement in Calibre 4130 / 4161.
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