---
description: ETA 7750-434 Click Spring — Genuine ETA, fits 7750 chronograph. Original factory winding mechanism spring. Made in Switzerland. Brand new.
title: ETA 7750-434 Click Spring - Sofly
image: https://www.soflypart.com/wp-content/uploads/2020/07/DSC05687.jpg
---
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- **ETA 7750-434 Click Spring**
[](https://www.soflypart.com/wp-content/uploads/2020/07/DSC05687.jpg)
# ETA 7750-434 Click Spring
$3.00
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| Brand | Choose an option ETA- 
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| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $3.00 |
| 3 - 4 | 5% | $2.85 |
| 5 - 9 | 7% | $2.79 |
| 10 - 14 | 10% | $2.70 |
| 15+ | 15% | $2.55 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $3.00 |
| 3 - 4 | 5% | $2.85 |
| 5 - 9 | 7% | $2.79 |
| 10 - 14 | 10% | $2.70 |
| 15+ | 15% | $2.55 |
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## Product Description
**Genuine ETA 7750-434 Click Spring**, Made in Switzerland, brand new — the **original factory spring component** for the **ETA/Valjoux 7750 chronograph movement’s winding mechanism**. Precisely engineered to **apply spring tension that keeps the click in positive engagement with the ratchet wheel**, the Click Spring **prevents the mainspring from unwinding** and **ensures reliable crown winding resistance** during manual winding. An **essential replacement part** for restoring a fatigued or broken click spring during movement service. **Original ETA part** — the professional’s choice for genuine winding mechanism restoration.
## Features & Function
- **Genuine ETA 7750-434** — original Swiss-made factory part, brand new, authentic, part number 7750-434
- **Click spring** — applies spring tension to keep the click in positive engagement with the ratchet wheel during winding
- **Prevents mainspring unwinding** — ensures the mainspring stays wound and does not unwind when the crown is released
- **Reliable winding resistance** — provides the positive tactile feel and resistance when manually winding the watch
- **Original factory quality** — exact spring tension and dimensional specifications for perfect fit in the ETA/Valjoux 7750 movement
## Specifications
| Parameter | Value |
| --- | --- |
| **Brand** | ETA (Swatch Group) |
| **Part Number** | 7750-434 |
| **Component** | Click Spring |
| **Compatibility** | ETA/Valjoux 7750 Chronograph Movement |
| **Origin** | Made in Switzerland |
| **Type** | Original Factory Part (Genuine ETA) |
| **Function** | Spring tension to keep click in positive ratchet engagement; prevents mainspring unwinding |
| **Packing** | Original Packing |
| **Condition** | Brand New / Genuine ETA |
## Applications
- Replacement of fatigued, broken, or weakened Click Spring in the ETA/Valjoux 7750 movement
- Repair of winding mechanism failures: crown slipping during winding, mainspring unwinding, or loss of winding resistance feel
- Repair of click mechanism: click not engaging properly or clicking sound absent
- Professional movement service, overhaul, and chronograph restoration
- Certified watchmaker and service center parts supply
## FAQ
**Q1: Is this a genuine ETA part?**
A: Yes — this is a **genuine ETA 7750-434 Click Spring**, **Made in Switzerland**, brand new. It is an **original factory part** from ETA (Swatch Group), the world’s leading movement manufacturer. Not a generic or replica part.
**Q2: How do I confirm this part fits my movement?**
A: Confirm your movement is an **ETA/Valjoux 7750 chronograph**. The **part number 7750-434** is the specific **Click Spring** for this movement. Common brand applications include: **IWC Portugieser Chronograph, Omega Speedmaster (older 7750 variant), Tag Heuer Monaco, Breitling Navitimer**, and many other chronographs using the Valjoux/ETA 7750 platform.
**Q3: What does the Click Spring do?**
A: The **Click Spring (7750-434)** is a **small spring** that **applies tension to the click** — the click is the **lever that engages the ratchet wheel** (the notched wheel that the crown turns to wind the mainspring). The spring **pushes the click into the ratchet wheel’s teeth**, creating the **characteristic clicking sound** as you wind the watch and **preventing the mainspring from unwinding** when you release the crown. Without a functioning click spring, the mainspring **would unwind immediately** when you stop winding, and the watch would lose all power.
## 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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Original factory winding mechanism spring. Made in Switzerland. Brand new.","sku":"1101010151","category":"Watch Parts","mainEntityOfPage":{"@id":"https://www.soflypart.com/product/eta-7750-434-click-spring/#webpage"},"image":[{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2020/07/DSC05687.jpg","height":"580","width":"580"}],"url":"https://www.soflypart.com/product/eta-7750-434-click-spring/","productGroupID":"1101010151","hasVariant":[{"@type":"Product","sku":"1101010151","name":"ETA 7750-434 Click Spring - ETA","description":"Product Description Genuine ETA 7750-434 Click Spring, Made in Switzerland, brand new \u2014 the\u00a0original factory spring component\u00a0for the\u00a0ETA/Valjoux 7750 chronograph movement\u2019s winding mechanism. Precisely engineered to\u00a0apply spring tension that keeps the click in positive engagement with the ratchet wheel, the Click Spring\u00a0prevents the mainspring from unwinding\u00a0and\u00a0ensures reliable crown winding resistance\u00a0during manual winding. An\u00a0essential replacement part\u00a0for restoring a fatigued or broken click spring during movement service.\u00a0Original ETA part\u00a0\u2014 the professional\u2019s choice for genuine winding mechanism restoration. Features & Function Genuine ETA 7750-434\u00a0\u2014 original Swiss-made factory part, brand new, authentic, part number 7750-434 Click spring\u00a0\u2014 applies spring tension to keep the click in positive engagement with the ratchet wheel during winding Prevents mainspring unwinding\u00a0\u2014 ensures the mainspring stays wound and does not unwind when the crown is released Reliable winding resistance\u00a0\u2014 provides the positive tactile feel and resistance when manually winding the watch Original factory quality\u00a0\u2014 exact spring tension and dimensional specifications for perfect fit in the ETA/Valjoux 7750 movement Specifications Parameter Value Brand ETA (Swatch Group) Part Number 7750-434 Component Click Spring Compatibility ETA/Valjoux 7750 Chronograph Movement Origin Made in Switzerland Type Original Factory Part (Genuine ETA) Function Spring tension to keep click in positive ratchet engagement; prevents mainspring unwinding Packing Original Packing Condition Brand New / Genuine ETA Applications Replacement of fatigued, broken, or weakened Click Spring in the ETA/Valjoux 7750 movement Repair of winding mechanism failures: crown slipping during winding, mainspring unwinding, or loss of winding resistance feel Repair of click mechanism: click not engaging properly or clicking sound absent Professional movement service, overhaul, and chronograph restoration Certified watchmaker and service center parts supply FAQ Q1: Is this a genuine ETA part? A: Yes \u2014 this is a\u00a0genuine ETA 7750-434 Click Spring,\u00a0Made in Switzerland, brand new. It is an\u00a0original factory part\u00a0from ETA (Swatch Group), the world\u2019s leading movement manufacturer. Not a generic or replica part. Q2: How do I confirm this part fits my movement? A: Confirm your movement is an\u00a0ETA/Valjoux 7750 chronograph. The\u00a0part number 7750-434\u00a0is the specific\u00a0Click Spring\u00a0for this movement. Common brand applications include:\u00a0IWC Portugieser Chronograph, Omega Speedmaster (older 7750 variant), Tag Heuer Monaco, Breitling Navitimer, and many other chronographs using the Valjoux/ETA 7750 platform. Q3: What does the Click Spring do? A: The\u00a0Click Spring (7750-434)\u00a0is a\u00a0small spring\u00a0that\u00a0applies tension to the click\u00a0\u2014 the click is the\u00a0lever that engages the ratchet wheel\u00a0(the notched wheel that the crown turns to wind the mainspring). The spring\u00a0pushes the click into the ratchet wheel\u2019s teeth, creating the\u00a0characteristic clicking sound\u00a0as you wind the watch and\u00a0preventing the mainspring from unwinding\u00a0when you release the crown. Without a functioning click spring, the mainspring\u00a0would unwind immediately\u00a0when you stop winding, and the watch would lose all power. 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/2020/07/DSC05687-150x150.jpg","offers":{"@type":"Offer","description":"Product Description Genuine ETA 7750-434 Click Spring, Made in Switzerland, brand new \u2014 the\u00a0original factory spring component\u00a0for the\u00a0ETA/Valjoux 7750 chronograph movement\u2019s winding mechanism. Precisely engineered to\u00a0apply spring tension that keeps the click in positive engagement with the ratchet wheel, the Click Spring\u00a0prevents the mainspring from unwinding\u00a0and\u00a0ensures reliable crown winding resistance\u00a0during manual winding. An\u00a0essential replacement part\u00a0for restoring a fatigued or broken click spring during movement service.\u00a0Original ETA part\u00a0\u2014 the professional\u2019s choice for genuine winding mechanism restoration. Features & Function Genuine ETA 7750-434\u00a0\u2014 original Swiss-made factory part, brand new, authentic, part number 7750-434 Click spring\u00a0\u2014 applies spring tension to keep the click in positive engagement with the ratchet wheel during winding Prevents mainspring unwinding\u00a0\u2014 ensures the mainspring stays wound and does not unwind when the crown is released Reliable winding resistance\u00a0\u2014 provides the positive tactile feel and resistance when manually winding the watch Original factory quality\u00a0\u2014 exact spring tension and dimensional specifications for perfect fit in the ETA/Valjoux 7750 movement Specifications Parameter Value Brand ETA (Swatch Group) Part Number 7750-434 Component Click Spring Compatibility ETA/Valjoux 7750 Chronograph Movement Origin Made in Switzerland Type Original Factory Part (Genuine ETA) Function Spring tension to keep click in positive ratchet engagement; prevents mainspring unwinding Packing Original Packing Condition Brand New / Genuine ETA Applications Replacement of fatigued, broken, or weakened Click Spring in the ETA/Valjoux 7750 movement Repair of winding mechanism failures: crown slipping during winding, mainspring unwinding, or loss of winding resistance feel Repair of click mechanism: click not engaging properly or clicking sound absent Professional movement service, overhaul, and chronograph restoration Certified watchmaker and service center parts supply FAQ Q1: Is this a genuine ETA part? A: Yes \u2014 this is a\u00a0genuine ETA 7750-434 Click Spring,\u00a0Made in Switzerland, brand new. It is an\u00a0original factory part\u00a0from ETA (Swatch Group), the world\u2019s leading movement manufacturer. Not a generic or replica part. Q2: How do I confirm this part fits my movement? A: Confirm your movement is an\u00a0ETA/Valjoux 7750 chronograph. The\u00a0part number 7750-434\u00a0is the specific\u00a0Click Spring\u00a0for this movement. Common brand applications include:\u00a0IWC Portugieser Chronograph, Omega Speedmaster (older 7750 variant), Tag Heuer Monaco, Breitling Navitimer, and many other chronographs using the Valjoux/ETA 7750 platform. Q3: What does the Click Spring do? A: The\u00a0Click Spring (7750-434)\u00a0is a\u00a0small spring\u00a0that\u00a0applies tension to the click\u00a0\u2014 the click is the\u00a0lever that engages the ratchet wheel\u00a0(the notched wheel that the crown turns to wind the mainspring). 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```