---
description: Genuine Ronda 7004 circuit block, part 3612.306.RK. Swiss-made electronic module for quartz chronograph. Direct replacement for faulty PCB.
title: Ronda Caliber 7004 Circuit Block Electronic Module - Sofly
image: https://www.soflypart.com/wp-content/uploads/2024/08/Ronda-7004-circuit.jpg
---
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- **Ronda Caliber 7004 Circuit Block Electronic Module**
[](https://www.soflypart.com/wp-content/uploads/2024/08/Ronda-7004-circuit.jpg)
# Ronda Caliber 7004 Circuit Block Electronic Module
$22.00
You Saved
| Brand | Choose an option Ronda- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 4 | — | $22.00 |
| 5 - 9 | 5% | $20.90 |
| 10+ | 10% | $19.80 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 4 | — | $22.00 |
| 5 - 9 | 5% | $20.90 |
| 10+ | 10% | $19.80 |
Ronda Caliber 7004 Circuit Block Electronic Module quantity
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## Product Description
This is a genuine circuit block / electronic module for the Ronda 7004 series quartz chronograph movement, part number 3612.306.RK. Its function is to accurately generate a 32768 Hz time base signal, which is divided by a microprocessor (IC) to drive a stepper motor, thereby directly controlling the gear train. As a core component of the Mastertech 7000 series, this factory-original Ronda module is especially suitable for repairing 7004 movements that have failed due to water ingress, battery leakage corroding the circuit board, or aging electronic components, eliminating the need to replace the entire movement.
## Key Features & Function
- **Genuine Ronda Part** – Factory‑original, not a copy or generic component, ensures perfect fit for 7004 movements.
- **Precision Time Base** – Built‑in 32,768 Hz quartz crystal oscillator for high accuracy.
- **Integrated Microprocessor (IC)** – Divides the time base signal and generates precise stepping motor pulses.
- **Stepper Motor Control** – Directly drives the gear train, controlling seconds hand and chronograph functions.
- **Cost‑Effective Repair** – Replaces only the faulty circuit board instead of the entire movement, saving costs.
## Specifications
| Parameter | Details |
| --- | --- |
| Part Name | Circuit Block / Electronic Module |
| Part Number | Ronda 3612.306.RK |
| Compatible Movement | Ronda Caliber 7004 quartz chronograph (Mastertech 7000 series) |
| Frequency | 32,768 Hz |
| Function | Generates stepping motor pulses for timekeeping and chronograph control |
| Origin | Switzerland |
| Condition | Brand new, genuine |
## Applications
- Ronda 7004 quartz chronograph movement (common in sports chronographs and multi‑function watches).
- Repair of non‑running movements, failed chronograph functions, or no pulse output after battery replacement.
- Particularly suitable for failures caused by water ingress, battery leakage corroding the PCB, or aged electronic components.
- Professional watch workshops, brand service centers.
## Frequently Asked Questions
**1. Is this a genuine Ronda circuit board?**
Yes. It is a Swiss factory‑original part (3612.306.RK) for the 7004 movement, not a copy.
**2. How can I tell if the circuit block needs replacement?**
Symptoms: the movement does not run with a fresh battery; no pulse output detected on a timing machine; visible corrosion on the PCB due to moisture or battery leakage.
**3. What should I pay attention to during installation?**
Disconnect the battery first. Align the circuit block with the locating pins and contact pads, ensuring good contact between the metal springs and coil leads. Use non‑magnetic tweezers and anti‑static precautions. Professional installation is recommended.
**4. Does the new circuit need calibration after installation?**
No. Timekeeping accuracy is determined by the quartz crystal. New factory circuits are pre‑calibrated to standard accuracy. A timing machine check is optional but recommended.
**5. Is this module compatible with all Ronda 7004 variants?**
The Ronda 7004 family may have different calendar configurations, but the circuit block is generally universal. Verify the original PCB shape and contact layout. Consult the seller if unsure.
## 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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As a core component of the Mastertech 7000 series, this factory-original Ronda module is especially suitable for repairing 7004 movements that have failed due to water ingress, battery leakage corroding the circuit board, or aging electronic components, eliminating the need to replace the entire movement. Key Features & Function Genuine Ronda Part\u00a0\u2013 Factory\u2011original, not a copy or generic component, ensures perfect fit for 7004 movements. Precision Time Base\u00a0\u2013 Built\u2011in 32,768 Hz quartz crystal oscillator for high accuracy. Integrated Microprocessor (IC)\u00a0\u2013 Divides the time base signal and generates precise stepping motor pulses. Stepper Motor Control\u00a0\u2013 Directly drives the gear train, controlling seconds hand and chronograph functions. Cost\u2011Effective Repair\u00a0\u2013 Replaces only the faulty circuit board instead of the entire movement, saving costs. Specifications Parameter Details Part Name Circuit Block / Electronic Module Part Number Ronda 3612.306.RK Compatible Movement Ronda Caliber 7004 quartz chronograph (Mastertech 7000 series) Frequency 32,768 Hz Function Generates stepping motor pulses for timekeeping and chronograph control Origin Switzerland Condition Brand new, genuine Applications Ronda 7004 quartz chronograph movement (common in sports chronographs and multi\u2011function watches). Repair of non\u2011running movements, failed chronograph functions, or no pulse output after battery replacement. Particularly suitable for failures caused by water ingress, battery leakage corroding the PCB, or aged electronic components. Professional watch workshops, brand service centers. Frequently Asked Questions 1. Is this a genuine Ronda circuit board? Yes. It is a Swiss factory\u2011original part (3612.306.RK) for the 7004 movement, not a copy. 2. How can I tell if the circuit block needs replacement? Symptoms: the movement does not run with a fresh battery; no pulse output detected on a timing machine; visible corrosion on the PCB due to moisture or battery leakage. 3. What should I pay attention to during installation? Disconnect the battery first. Align the circuit block with the locating pins and contact pads, ensuring good contact between the metal springs and coil leads. Use non\u2011magnetic tweezers and anti\u2011static precautions. Professional installation is recommended. 4. Does the new circuit need calibration after installation? No. Timekeeping accuracy is determined by the quartz crystal. New factory circuits are pre\u2011calibrated to standard accuracy. A timing machine check is optional but recommended. 5. Is this module compatible with all Ronda 7004 variants? The Ronda 7004 family may have different calendar configurations, but the circuit block is generally universal. Verify the original PCB shape and contact layout. Consult the seller if unsure. 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\u00a0info@soflypart.com\u00a0or WhatsApp\u00a0+86 18620212114.","image":"https://www.soflypart.com/wp-content/uploads/2024/08/Ronda-7004-circuit-150x150.jpg","offers":{"@type":"Offer","description":"Product Description This is a genuine circuit block / electronic module for the Ronda 7004 series quartz chronograph movement, part number 3612.306.RK. Its function is to accurately generate a 32768 Hz time base signal, which is divided by a microprocessor (IC) to drive a stepper motor, thereby directly controlling the gear train. As a core component of the Mastertech 7000 series, this factory-original Ronda module is especially suitable for repairing 7004 movements that have failed due to water ingress, battery leakage corroding the circuit board, or aging electronic components, eliminating the need to replace the entire movement. Key Features & Function Genuine Ronda Part\u00a0\u2013 Factory\u2011original, not a copy or generic component, ensures perfect fit for 7004 movements. Precision Time Base\u00a0\u2013 Built\u2011in 32,768 Hz quartz crystal oscillator for high accuracy. Integrated Microprocessor (IC)\u00a0\u2013 Divides the time base signal and generates precise stepping motor pulses. Stepper Motor Control\u00a0\u2013 Directly drives the gear train, controlling seconds hand and chronograph functions. Cost\u2011Effective Repair\u00a0\u2013 Replaces only the faulty circuit board instead of the entire movement, saving costs. Specifications Parameter Details Part Name Circuit Block / Electronic Module Part Number Ronda 3612.306.RK Compatible Movement Ronda Caliber 7004 quartz chronograph (Mastertech 7000 series) Frequency 32,768 Hz Function Generates stepping motor pulses for timekeeping and chronograph control Origin Switzerland Condition Brand new, genuine Applications Ronda 7004 quartz chronograph movement (common in sports chronographs and multi\u2011function watches). Repair of non\u2011running movements, failed chronograph functions, or no pulse output after battery replacement. Particularly suitable for failures caused by water ingress, battery leakage corroding the PCB, or aged electronic components. Professional watch workshops, brand service centers. Frequently Asked Questions 1. Is this a genuine Ronda circuit board? Yes. It is a Swiss factory\u2011original part (3612.306.RK) for the 7004 movement, not a copy. 2. How can I tell if the circuit block needs replacement? Symptoms: the movement does not run with a fresh battery; no pulse output detected on a timing machine; visible corrosion on the PCB due to moisture or battery leakage. 3. What should I pay attention to during installation? Disconnect the battery first. Align the circuit block with the locating pins and contact pads, ensuring good contact between the metal springs and coil leads. Use non\u2011magnetic tweezers and anti\u2011static precautions. Professional installation is recommended. 4. Does the new circuit need calibration after installation? No. Timekeeping accuracy is determined by the quartz crystal. New factory circuits are pre\u2011calibrated to standard accuracy. A timing machine check is optional but recommended. 5. Is this module compatible with all Ronda 7004 variants? The Ronda 7004 family may have different calendar configurations, but the circuit block is generally universal. Verify the original PCB shape and contact layout. Consult the seller if unsure. 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\u00a0info@soflypart.com\u00a0or WhatsApp\u00a0+86 18620212114.","price":"22","priceCurrency":"USD","availability":"http://schema.org/InStock","itemCondition":"NewCondition","priceValidUntil":"2027-12-31","url":"https://www.soflypart.com/product/ronda-caliber-7004-circuit-block-electronic-module/?attribute_pa_brand=ronda"}}],"@id":"https://www.soflypart.com/product/ronda-caliber-7004-circuit-block-electronic-module/#richSnippet"}]}
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