ETA 7001-771 Mainspring

Product Description

Genuine ETA 7001 mainspring (part no. 771), made in Switzerland and brand new. Engineered to deliver reliable power reserve and consistent torque for the classic ETA 7001 slim hand-wound movement. An essential genuine ETA replacement component for watchmakers servicing 7001 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 7001 movement — precision-matched to this slim hand-wound 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 7001 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 7001 slim hand-wound watches

FAQ

Q1: Is this a genuine ETA mainspring?
A: Yes — this is a genuine ETA 7001 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 7001 slim hand-wound 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.