Rolex 4130 Mainspring

ETA 2000-771 Mainspring

$14.00
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Quantity Discount (%) Price
1 — $14.00
2 - 4 5 % $13.30
5 - 9 7 % $13.02
10 - 14 12 % $12.32
15+ 15 % $11.90
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Product Description

Genuine ETA 2000-771 mainspring, made in Switzerland and brand new — a precision replacement component designed for ETA 2000 series mechanical movements. Engineered to deliver reliable power reserve and consistent torque for smooth, accurate timekeeping. An essential genuine ETA component for watchmakers servicing 2000-series calibers — 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 2000 series — precision-matched to 2000-series mechanical calibers
  • 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

Parameter Value
Type Mainspring
Brand ETA (genuine)
Origin Made in Switzerland
Part Number 771
Compatibility ETA caliber 2000 series
Condition Brand new
Application Mechanical movement power source

Applications

  • Replacing worn or broken mainsprings in ETA 2000-series 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 2000-series mechanical watches

FAQ

Q1: Is this a genuine ETA mainspring?
A: Yes — this is a genuine ETA 2000-771 mainspring, made in Switzerland. It is an original ETA spare part (ref. 771), not a generic or aftermarket copy.

Q2: Which movement does it fit?
A: This mainspring is designed for the ETA caliber 2000 series mechanical movements — 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.

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