---
description: Genuine ETA E03.001-4000 circuit module, Swiss made. Core control for E03.001 movement, drives 2-hand timekeeping, compatible with 335 battery.
title: ETA E03.001-4000 Circuit Block Electronic Module - Sofly
image: https://www.soflypart.com/wp-content/uploads/2026/08/ETA-E03.001-4000-Circuit-Block-Electronic-Module.jpg
---
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- **ETA E03.001-4000 Circuit Block Electronic Module**
[](https://www.soflypart.com/wp-content/uploads/2026/08/ETA-E03.001-4000-Circuit-Block-Electronic-Module.jpg)
# ETA E03.001-4000 Circuit Block Electronic Module
$90.00
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| Brand | Choose an option ETA- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 4 | — | $90.00 |
| 5 - 9 | 5% | $85.50 |
| 10+ | 10% | $81.00 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 4 | — | $90.00 |
| 5 - 9 | 5% | $85.50 |
| 10+ | 10% | $81.00 |
ETA E03.001-4000 Circuit Block Electronic Module quantity
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## Product Description
This is a **genuine ETA E03.001-4000 circuit block electronic module** for the **E03.001 movement**, **made in Switzerland**. It serves as the **core control component** of the ETA E03.001 ultra-thin quartz movement, generating the precise 32,768Hz quartz oscillation signal to drive the stepper motor for accurate timekeeping. Featuring **6 jewels** and designed for **335 (SR512SW) batteries**, it offers a battery life of up to **55 months**. This product is **brand new and original**, intended for servicing and repair of E03.001 movements.
## Specifications
- **Brand**：ETA (Swiss)
- **Compatible Movement**：**E03.001** ultra-thin quartz caliber
- **Part Number**：**E03.001-4000**
- **Origin**：**Made in Switzerland**
- **Quality**：**Genuine original**, brand new
- **Function**：**Generates and processes time signals**, drives stepper motor
## FAQ
**1. Is this circuit module an original ETA genuine part?**
Yes, **made in Switzerland**.
**2. Which movements is this circuit module compatible with?**
It fits the **ETA E03.001 ultra-thin quartz caliber** (5½ × 6¾ ligne, 13.00 × 15.15mm, 1.35mm height). This is a **two-hand (hour/minute) movement** featuring **6 jewels** and using a **335 (SR512SW) battery** with a battery life of up to **55 months**.
**3. What happens if the circuit module is damaged?**
The circuit module is the **core control component** of the movement, generating the precise 32,768Hz quartz oscillation signal and driving the stepper motor. Damage can cause **stoppage, inaccurate timekeeping, or abnormal hand movement**. The E03.001 uses a **335 battery (1.55V)**—circuit failure directly impacts performance. **Timely replacement** is recommended.
## 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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It serves as the\u00a0core control component\u00a0of the ETA E03.001 ultra-thin quartz movement, generating the precise 32,768Hz quartz oscillation signal to drive the stepper motor for accurate timekeeping. Featuring\u00a06 jewels\u00a0and designed for\u00a0335 (SR512SW) batteries, it offers a battery life of up to\u00a055 months. This product is\u00a0brand new and original, intended for servicing and repair of E03.001 movements. Specifications Brand\uff1aETA (Swiss) Compatible Movement\uff1aE03.001\u00a0ultra-thin quartz caliber Part Number\uff1aE03.001-4000 Origin\uff1aMade in Switzerland Quality\uff1aGenuine original, brand new Function\uff1aGenerates and processes time signals, drives stepper motor FAQ 1. Is this circuit module an original ETA genuine part? Yes,\u00a0made in Switzerland. 2. Which movements is this circuit module compatible with? It fits the\u00a0ETA E03.001 ultra-thin quartz caliber\u00a0(5\u00bd \u00d7 6\u00be ligne, 13.00 \u00d7 15.15mm, 1.35mm height). 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