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The Rolex 4130-305 Ratchet Wheel is a genuine replacement component designed for the Rolex Calibre 4130 automatic chronograph movement, which powers the Cosmograph Daytona series. This ratchet wheel is an essential part of the movement’s winding mechanism, contributing to the reliable power delivery that the 4130 caliber is known for.
Genuine Rolex part – authentic Swiss-made component for Calibre 4130
Essential winding component – plays a key role in the automatic winding system
Precision-engineered – manufactured to Rolex’s exacting specifications for reliable performance
Direct replacement – designed for professional servicing and restoration of Daytona movements
Part Number: 4130-305
Compatible Movement: Rolex Calibre 4130 (automatic chronograph)
Part Type: Ratchet wheel (winding mechanism component)
Origin: Switzerland (genuine Rolex factory part)
Condition: Brand new / New Old Stock (NOS)
Service and overhaul of Rolex Calibre 4130 movements
Restoration of Cosmograph Daytona watches (references 116520, 116500, etc.)
Replacement for worn or damaged ratchet wheels during maintenance
Suitable for professional watchmakers and authorized service centers
1. Is this an original Rolex part?
Yes, this is a genuine Rolex factory part (reference 4130-305), manufactured in Switzerland. It is not an aftermarket or generic component.
2. Which movements is this ratchet wheel compatible with?
This part is specifically designed for the Rolex Calibre 4130 automatic chronograph movement. Please verify your movement caliber before ordering.
3. Is professional installation required?
Yes, movement components like the ratchet wheel require specialized tools and expertise for proper installation. We strongly recommend installation by a qualified watchmaker.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
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