---
description: AP 2120/2121 balance wheel assembly, Swiss original, fits Gyromax / Glucydur configurations, -4/+6 sec/day accuracy. For Royal Oak Jumbo and classics.
title: Audemars Piguet Balance Wheel For Caliber 2120/2121 - Sofly
image: https://www.soflypart.com/wp-content/uploads/2025/05/Audemars-Piguet-caliber-2120_2121-balance-wheel-A.png
---
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- **Audemars Piguet Balance Wheel For Caliber 2120/2121**
[](https://www.soflypart.com/wp-content/uploads/2025/05/Audemars-Piguet-caliber-2120_2121-balance-wheel-A.png)
[](https://www.soflypart.com/wp-content/uploads/2025/05/Audemars-Piguet-caliber-2120_2121-balance-wheel.png)
# Audemars Piguet Balance Wheel For Caliber 2120/2121
$660.00
You Saved
| Brand | Choose an option Audemars piguet- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $660.00 |
| 3 - 4 | 5% | $627.00 |
| 5 - 9 | 7% | $613.80 |
| 10 - 14 | 10% | $594.00 |
| 15+ | 15% | $561.00 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $660.00 |
| 3 - 4 | 5% | $627.00 |
| 5 - 9 | 7% | $613.80 |
| 10 - 14 | 10% | $594.00 |
| 15+ | 15% | $561.00 |
Audemars Piguet Balance Wheel For Caliber 2120/2121 quantity
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## Product Description
This is a **genuine Swiss-made Audemars Piguet original balance wheel assembly** for the legendary **Caliber 2120/2121** ultra-thin automatic movements. The **core precision component of the timekeeping system**, compatible with both **Gyromax free-sprung balance** and **Glucydur annular balance with index regulator**. Ideal for servicing iconic references such as the **Royal Oak Jumbo (Ref. 5402)**.
## Specifications
- **Type:** **Balance Wheel Assembly**
- **Compatible with:** **AP Calibre 2120 / 2121 / 2121/1**
- **Configuration:** **Gyromax free-sprung / Glucydur annular with index regulator**
- **Movement Specs:** **2.45mm thick, 19,800 vph (2.75Hz), 36 jewels**
- **Accuracy:** **-4/+6 sec/day, adjusted to five positions**
- **Features:** **Genuine factory part, timekeeping system core**
- **Origin:** **Made in Swiss**
## FAQ
**1. Is it genuine?**
This is an **aftermarket part**, not in original packaging, but dimensions and specifications **exactly match** the original.
**2. How is the quality?**
**Precision-machined**, restoring **-4/+6 sec/day** chronometer-grade accuracy.
**3. What is it suitable for?**
Ideal as a **balance wheel replacement** for **Calibre 2120/2121**.
## Why Choose SOFLY Watch Parts?
**Fast Worldwide Shipping** – Orders are dispatched within 3 business days.
**Competitive Pricing** – Great value across watch movements, replacement parts and watchmaking tools.
**Extensive Selection** – More than 3,000 watch movements, parts and accessories available.
**Trusted Worldwide** – Trusted by watchmakers, repair professionals and watch enthusiasts worldwide.
**Personalized Sourcing** – Can’t find the part you need? Contact **info@soflypart.com** or WhatsApp **+86 18620212114.**
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