---
description: Genuine ETA 7750-1142 automatic device bridge for Valjoux 7750. Swiss-made jewelled upper bridge for chronograph movement automatic winding repair.
title: ETA 7750 Movement Automatic Device Bridge | ETA Movements - Sofly
image: https://www.soflypart.com/wp-content/uploads/2019/06/7750adb.jpg
---
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- **ETA 7750-1142 Movement Automatic Device Bridge**
[](https://www.soflypart.com/wp-content/uploads/2019/06/7750adb.jpg)
[](https://www.soflypart.com/wp-content/uploads/2019/06/7750adbb.jpg)
# ETA 7750-1142 Movement Automatic Device Bridge
$40.00
You Saved
| Brand | Choose an option ETA- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $40.00 |
| 3 - 4 | 5% | $38.00 |
| 5 - 9 | 7% | $37.20 |
| 10 - 14 | 10% | $36.00 |
| 15+ | 15% | $34.00 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $40.00 |
| 3 - 4 | 5% | $38.00 |
| 5 - 9 | 7% | $37.20 |
| 10 - 14 | 10% | $36.00 |
| 15+ | 15% | $34.00 |
ETA 7750-1142 Movement Automatic Device Bridge quantity
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## Product Description
The **ETA 7750-1142 Movement Automatic Device Bridge** is a genuine Swiss-made component for the ETA/Valjoux 7750 automatic chronograph movement. This jewelled bridge is part of the automatic winding mechanism and supports the oscillating weight (rotor) and winding components, ensuring stable operation of the self-winding system . As an “upper bridge for automatic device” , it is a key structural component that must be replaced if damaged to restore proper automatic winding function.
## Features & Function
- **Genuine ETA part** – authentic Swiss-made component for the ETA 7750 movement
- **Automatic winding mechanism component** – supports the oscillating weight and winding elements
- **Jewelled construction** – fitted with jewels to reduce friction and wear
- **Upper bridge design** – works with the lower bridge (1141) to form the complete automatic device bridge set
- **Direct replacement** – drop-in replacement for damaged or worn automatic device bridges
## Specifications
- **Part Number**: 7750-1142 / 1142
- **Article Number**: 44
- **Compatible Movements**: ETA/Valjoux 7750, 7751, 7753, 7754, 7760, 7765, 7770
- **Part Type**: Upper bridge for automatic device (jewelled)
- **ETA Reference**: 104571
- **Nickel-plated finish**: Yes
- **Caliber Diameter**: 30.0 mm
- **Caliber Height**: 7.9 mm
- **Jewels**: 25 (movement total)
- **Frequency**: 28,800 vph (4 Hz)
- **Lift Angle**: 49°
- **Power Reserve**: \~48 hours
- **Origin**: Switzerland (ETA factory part)
- **Condition**: Brand new
## Applications
- **Service and overhaul** of ETA 7750-series movements
- **Automatic winding system repair** – replacing damaged or worn device bridges
- **Rotor assembly restoration** – ensuring stable support for the oscillating weight
- Suitable for **professional watchmakers** and **experienced repair technicians**
## FAQs
**1. Is this a genuine ETA part?**
Yes, this is a **genuine ETA factory part** (reference 7750-1142), made in Switzerland. It is not an aftermarket or generic copy .
**2. Which movements is this automatic device bridge compatible with?**
This bridge is compatible with the **ETA/Valjoux 7750** and its variants, including 7751, 7753, 7754, 7760, 7765, and 7770 .
**3. What is the difference between the upper bridge (1142) and lower bridge (1141)?**
The **upper bridge (1142)** and **lower bridge (1141)** work together to form the complete automatic device bridge assembly . The 1142 is the upper part that supports the rotor, while the 1141 is the lower bridge that completes the automatic winding module.
## 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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This jewelled bridge is part of the automatic winding mechanism and supports the oscillating weight (rotor) and winding components, ensuring stable operation of the self-winding system\u00a0. As an \"upper bridge for automatic device\"\u00a0, it is a key structural component that must be replaced if damaged to restore proper automatic winding function. Features & Function Genuine ETA part\u00a0\u2013 authentic Swiss-made component for the ETA 7750 movement Automatic winding mechanism component\u00a0\u2013 supports the oscillating weight and winding elements\u00a0 Jewelled construction\u00a0\u2013 fitted with jewels to reduce friction and wear\u00a0 Upper bridge design\u00a0\u2013 works with the lower bridge (1141) to form the complete automatic device bridge set\u00a0 Direct replacement\u00a0\u2013 drop-in replacement for damaged or worn automatic device bridges Specifications Part Number: 7750-1142 / 1142 Article Number: 44\u00a0 Compatible Movements: ETA/Valjoux 7750, 7751, 7753, 7754, 7760, 7765, 7770\u00a0 Part Type: Upper bridge for automatic device (jewelled)\u00a0 ETA Reference: 104571\u00a0 Nickel-plated finish: Yes\u00a0 Caliber Diameter: 30.0 mm\u00a0 Caliber Height: 7.9 mm\u00a0 Jewels: 25 (movement total)\u00a0 Frequency: 28,800 vph (4 Hz)\u00a0 Lift Angle: 49\u00b0\u00a0 Power Reserve: ~48 hours\u00a0 Origin: Switzerland (ETA factory part)\u00a0 Condition: Brand new Applications Service and overhaul\u00a0of ETA 7750-series movements Automatic winding system repair\u00a0\u2013 replacing damaged or worn device bridges Rotor assembly restoration\u00a0\u2013 ensuring stable support for the oscillating weight Suitable for\u00a0professional watchmakers\u00a0and\u00a0experienced repair technicians FAQs 1. Is this a genuine ETA part? Yes, this is a\u00a0genuine ETA factory part\u00a0(reference 7750-1142), made in Switzerland. It is not an aftermarket or generic copy\u00a0. 2. Which movements is this automatic device bridge compatible with? This bridge is compatible with the\u00a0ETA/Valjoux 7750\u00a0and its variants, including 7751, 7753, 7754, 7760, 7765, and 7770\u00a0. 3. What is the difference between the upper bridge (1142) and lower bridge (1141)? The\u00a0upper bridge (1142)\u00a0and\u00a0lower bridge (1141)\u00a0work together to form the complete automatic device bridge assembly\u00a0. The 1142 is the upper part that supports the rotor, while the 1141 is the lower bridge that completes the automatic winding module. 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. 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Features & Function Genuine ETA part\u00a0\u2013 authentic Swiss-made component for the ETA 7750 movement Automatic winding mechanism component\u00a0\u2013 supports the oscillating weight and winding elements\u00a0 Jewelled construction\u00a0\u2013 fitted with jewels to reduce friction and wear\u00a0 Upper bridge design\u00a0\u2013 works with the lower bridge (1141) to form the complete automatic device bridge set\u00a0 Direct replacement\u00a0\u2013 drop-in replacement for damaged or worn automatic device bridges Specifications Part Number: 7750-1142 / 1142 Article Number: 44\u00a0 Compatible Movements: ETA/Valjoux 7750, 7751, 7753, 7754, 7760, 7765, 7770\u00a0 Part Type: Upper bridge for automatic device (jewelled)\u00a0 ETA Reference: 104571\u00a0 Nickel-plated finish: Yes\u00a0 Caliber Diameter: 30.0 mm\u00a0 Caliber Height: 7.9 mm\u00a0 Jewels: 25 (movement total)\u00a0 Frequency: 28,800 vph (4 Hz)\u00a0 Lift Angle: 49\u00b0\u00a0 Power Reserve: ~48 hours\u00a0 Origin: Switzerland (ETA factory part)\u00a0 Condition: Brand new Applications Service and overhaul\u00a0of ETA 7750-series movements Automatic winding system repair\u00a0\u2013 replacing damaged or worn device bridges Rotor assembly restoration\u00a0\u2013 ensuring stable support for the oscillating weight Suitable for\u00a0professional watchmakers\u00a0and\u00a0experienced repair technicians FAQs 1. Is this a genuine ETA part? Yes, this is a\u00a0genuine ETA factory part\u00a0(reference 7750-1142), made in Switzerland. It is not an aftermarket or generic copy\u00a0. 2. Which movements is this automatic device bridge compatible with? This bridge is compatible with the\u00a0ETA/Valjoux 7750\u00a0and its variants, including 7751, 7753, 7754, 7760, 7765, and 7770\u00a0. 3. What is the difference between the upper bridge (1142) and lower bridge (1141)? The\u00a0upper bridge (1142)\u00a0and\u00a0lower bridge (1141)\u00a0work together to form the complete automatic device bridge assembly\u00a0. The 1142 is the upper part that supports the rotor, while the 1141 is the lower bridge that completes the automatic winding module. 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. 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