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High-quality generic mainspring designed for Rolex Calibre 4130 automatic chronograph movement. Manufactured in Switzerland from high-grade alloy steel. Aftermarket replacement for worn or broken original mainsprings, delivering consistent 72-hour power reserve.
Swiss-made from durable high-grade alloy steel
Restores original 72-hour power reserve of Calibre 4130
Precisely sized to fit 4130 mainspring barrel
Reliable winding consistency and torque output
Affordable alternative to scarce OEM parts
| Parameter | Value |
|---|---|
| Compatible caliber | Rolex Calibre 4130 |
| Mainspring height | 1.45 mm |
| Mainspring length | 572 mm (22.5 inches) |
| Mainspring thickness | 0.1125 mm |
| Material | High-grade alloy steel |
| Origin | Switzerland |
| Power reserve | 72 hours |
| Type | Aftermarket / Generic |
Replacing worn, broken, or fatigued original mainspring in Rolex Calibre 4130 during movement service.
Suitable for all Calibre 4130-based watches (Cosmograph Daytona ref. 116520, 116500LN, 116518, 116519, 116528, 116509, etc.).
Professional watch repair and restoration.
Q1: Genuine Rolex part?
No, generic aftermarket replacement.
Q2: Which caliber?
Rolex Calibre 4130 only (Daytona 116500, 116520, etc.).
Q3: Quality reliable?
Yes, Swiss-made, performance comparable to OEM.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
Trusted by watchmakers worldwide.
Personalized sourcing support via [email protected] or WhatsApp +86 18620212114.
