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This is a generic mainspring designed as a direct, high-quality replacement for the Vacheron Constantin in-house Caliber 2450 automatic movement. It is manufactured from premium alloy steel that mirrors the original specifications, ensuring a stable torque curve to maintain the caliber’s signature 40-hour power reserve.
Generic Replacement – Designed for Vacheron Constantin Caliber 2450; non‑original but matches OEM dimensions and torque.
Premium Alloy Steel – Made of the same grade as the original for stable energy output.
40‑Hour Power Reserve – Perfectly matches the movement’s original design.
Cost‑Effective – Affordable alternative to genuine mainsprings for service or replacement.
Direct Fit – Same installation as original; no modification required.
| Parameter | Details |
|---|---|
| Part Name | Mainspring |
| Compatible Movement | Vacheron Constantin Caliber 2450 automatic |
| Type | Generic aftermarket |
| Power Reserve | Approx. 40 hours |
| Material | Premium alloy steel |
Vacheron Constantin Caliber 2450 automatic (found in Quai de l’Ile, Patrimony, Fiftysix collections, etc.)
Replacement of aged, broken, or low‑torque mainsprings during full movement service
Repair of insufficient power reserve or low amplitude caused by mainspring fatigue
1. Is this a genuine Vacheron Constantin mainspring?
No. It is a generic aftermarket replacement, not original, but matches the Caliber 2450 specifications.
2. Which specific calibers does this mainspring fit?
Designed for Caliber 2450. Variants like 2450/1, 2450/2 usually share the same mainspring. Not for 2475 or other calibers.
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. Is lubrication required after installation?
Yes. Apply a small amount of mainspring grease (e.g., Moebius 8200) to the barrel wall and oil the arbor. Follow the movement technical guide.
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