ETA 7750-771 Mainspring

Product Description

Genuine ETA 7750 mainspring (part no. 771), made in Switzerland and brand new. Engineered to deliver reliable power reserve and consistent torque for the legendary ETA 7750 automatic chronograph movement. An essential genuine ETA replacement component for watchmakers servicing 7750 movements — ideal for certified watchmakers and repair technicians.

Features & Function

• Genuine ETA mainspring — Swiss-made, original ETA spare part (ref. 771), not a generic copy
• For ETA 7750 movement — precision-matched to this iconic automatic chronograph caliber
• Reliable power delivery — smooth, consistent torque for accurate timekeeping
• Brand new condition — clean, ready-to-install genuine ETA component
• Essential movement part — for certified watchmakers and repair technicians

Specifications

Applications

• Replacing worn or broken mainsprings in ETA 7750 movements
• Professional movement servicing and overhaul with genuine ETA parts
• Certified watchmaker and repair technician genuine ETA part supply
• Watch repair workshop and service center equipment
• Restoring reliable power reserve to ETA 7750 chronograph watches

FAQ

Q1: Is this a genuine ETA mainspring?
A: Yes — this is a genuine ETA 7750 mainspring (part no. 771), made in Switzerland. It is an original ETA spare part, not a generic or aftermarket copy.

Q2: Which movement does it fit?
A: This mainspring is designed for the ETA caliber 7750 automatic chronograph movement — please confirm your movement reference before ordering.

Q3: Is it safe to install?
A: Yes — the mainspring is a brand new genuine ETA component. We recommend professional watchmaker installation for safe and correct fitting into the barrel.

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 [email protected] or WhatsApp +86 18620212114.