---
description: Generic mainspring for Jaeger‑LeCoultre Caliber 924. Swiss alloy steel, restores 43h power reserve. Aftermarket replacement.
title: Generic JLC Jaeger-LeCoultre Caliber 924 Mainspring - Sofly
image: https://www.soflypart.com/wp-content/uploads/2020/12/DSC05891.jpg
---
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- **Generic JLC Jaeger-LeCoultre Caliber 924 Mainspring**
[](https://www.soflypart.com/wp-content/uploads/2020/12/DSC05891.jpg)
# Generic JLC Jaeger-LeCoultre Caliber 924 Mainspring
$23.00
You Saved
| Brand | Choose an option Jaeger-LeCoultre- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 | — | $23.00 |
| 2 - 4 | 5% | $21.85 |
| 5 - 9 | 7% | $21.39 |
| 10 - 14 | 12% | $20.24 |
| 15+ | 15% | $19.55 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 | — | $23.00 |
| 2 - 4 | 5% | $21.85 |
| 5 - 9 | 7% | $21.39 |
| 10 - 14 | 12% | $20.24 |
| 15+ | 15% | $19.55 |
Generic JLC Jaeger-LeCoultre Caliber 924 Mainspring quantity
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## Product Description
Generic mainspring for Jaeger‑LeCoultre Caliber 924 automatic movement. Swiss‑made, high‑grade alloy steel. Restores original 43‑hour power reserve. Aftermarket replacement for worn or broken original springs.
## Features & Function
- Precision‑wound for Caliber 924 – exact fit for 924 barrel.
- High‑grade alloy steel – durable, fatigue‑resistant.
- Restores 43‑hour power reserve and stable amplitude.
- Drop‑in replacement – no modification to movement.
- Affordable alternative to genuine JLC mainspring.
## Specifications
| Parameter | Value |
| --- | --- |
| Compatible caliber | Jaeger‑LeCoultre Caliber 924 |
| Power reserve | 43 hours |
| Movement frequency | 28,800 vph (4 Hz) |
| Jewels | 41 |
| Material | High‑grade alloy steel |
| Type | Aftermarket |
## Applications
- Replace worn or broken mainspring during service of JLC Caliber 924.
- Suitable for Master Calendar, Master Control and other 924‑powered models.
- Professional watch repair and restoration.
## Frequently Asked Questions
**Q1: Genuine JLC part?** No, generic aftermarket.
**Q2: Which caliber?** Jaeger‑LeCoultre Caliber 924 only.
**Q3: What power reserve after replacement?** 43 hours.
## Why Choose SOFLY Watch Parts?
- 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 **info@soflypart.com** or WhatsApp **+86 18620212114**.
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High\u2011grade alloy steel \u2013 durable, fatigue\u2011resistant. Restores 43\u2011hour power reserve and stable amplitude. Drop\u2011in replacement \u2013 no modification to movement. Affordable alternative to genuine JLC mainspring. Specifications Parameter Value Compatible caliber Jaeger\u2011LeCoultre Caliber 924 Power reserve 43 hours Movement frequency 28,800 vph (4 Hz) Jewels 41 Material High\u2011grade alloy steel Type Aftermarket Applications Replace worn or broken mainspring during service of JLC Caliber 924. Suitable for Master Calendar, Master Control and other 924\u2011powered models. Professional watch repair and restoration. Frequently Asked Questions Q1: Genuine JLC part?\u00a0No, generic aftermarket. Q2: Which caliber?\u00a0Jaeger\u2011LeCoultre Caliber 924 only. Q3: What power reserve after replacement?\u00a043 hours. Why Choose SOFLY Watch Parts? Fast worldwide shipping within 3 business days. 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