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This is a high-quality generic mainspring designed specifically for the Jaeger-LeCoultre Caliber 822, available in both hand-winding and automatic versions. It serves as the power source for the iconic Reverso collection and is crafted to provide a smooth, stable energy delivery. Manufactured with robust, corrosion-resistant materials, this aftermarket part is an excellent, cost-effective alternative for replacing a broken or worn original mainspring during routine maintenance or repair.
Generic Replacement – Designed for JLC Caliber 822; non‑original but matches OEM dimensions and torque.
Fits Both Versions – Works for both hand‑winding and automatic Caliber 822 movements.
Quality Material – Made of corrosion‑resistant alloy steel for durability and stable output.
Smooth Power Delivery – Optimized torque curve for consistent energy release in Reverso watches.
Cost‑Effective – Affordable alternative to genuine mainsprings for service or repair.
| Parameter | Details |
|---|---|
| Part Name | Mainspring |
| Compatible Movement | Jaeger-LeCoultre Caliber 822 (hand‑winding & automatic) |
| Type | Generic aftermarket |
| Power Reserve | Approx. 40-45 hours (depending on version) |
| Material | Corrosion‑resistant alloy steel |
Jaeger-LeCoultre Caliber 822 hand‑winding (classic Reverso models)
Jaeger-LeCoultre Caliber 822 automatic (some Reverso and Duoface models)
Replacement of aged, broken, or low‑torque mainsprings during full movement service
Repair of insufficient power reserve or slow timing caused by mainspring fatigue
1. Is this a genuine Jaeger-LeCoultre mainspring?
No. It is a generic aftermarket replacement, not original, but matches the Caliber 822 specifications.
2. Is the mainspring the same for hand‑winding and automatic versions?
Yes. Both versions of Caliber 822 share the same mainspring system – this product fits both.
3. What should I pay attention to during installation?
Use a mainspring winder. Ensure the outer end engages the barrel wall notch and the inner end locks onto the arbor. Professional installation is strongly recommended.
4. When should the mainspring be replaced?
If power reserve drops significantly below 40 hours, or amplitude is very low after servicing other components, replace the mainspring.
5. Does this mainspring fit other JLC calibers?
Designed specifically for Caliber 822. Other calibers (e.g., 844, 854) use different mainsprings – do not mix.
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