Mainspring Replacement for ETA 2824-2, 2836-2 & 2834-2 Movements

Keep your automatic timepiece running smoothly with this precision mainspring replacement, engineered to fit ETA 2824-2, 2836-2, and 2834-2 watch movements. Whether you're a professional watchmaker or a passionate hobbyist, this drop-in substitute restores consistent power delivery and reliable timekeeping to your beloved automatic watch.

Compact and precisely sized at 1.8 cm (0.7 in), this mainspring is crafted to exact tolerances, ensuring a secure fit and dependable winding tension in compatible ETA movements. Its silver finish blends seamlessly with the internal components of your calibre.

Key Features

• Universal Fit: Compatible with ETA 2824-2, 2836-2, and 2834-2 automatic movement calibres
• Precision Sizing: 1.8 cm / 0.7 in — engineered to exact movement specifications
• Silver Finish: Matches the internal components of ETA-based calibres
• Reliable Power Reserve: Maintains consistent coil tension for steady, accurate timekeeping
• Ideal for Repairs & Overhauls: Perfect for watch repair technicians and enthusiasts alike
• Easy Installation: Designed as a direct substitute — no modification required

Who Is This For?

This mainspring replacement is ideal for watch repair professionals, horologists, and DIY watch enthusiasts who need a quality, readily available spare part for ETA-based automatic movements. It also makes a practical gift for the watchmaker in your life.

Product Specifications

• Compatible Movements: ETA 2824-2, ETA 2836-2, ETA 2834-2
• Size: 1.8 cm / 0.7 in
• Color: Silver
• Vendor: Qme

Learn More About Watch Movement Maintenance

For further guidance on mechanical watch movements and horological repair standards, visit the Smithsonian Institution's Horology resources — a trusted reference for watch history and mechanical timekeeping.

Frequently Asked Questions

Q: Which ETA movement calibres is this mainspring replacement compatible with?

A: This mainspring is a direct replacement designed to fit the ETA 2824-2, ETA 2836-2, and ETA 2834-2 automatic movement calibres — three of the most widely used Swiss automatic movements in the industry.

Q: What size is this replacement mainspring?

A: The mainspring measures 1.8 cm (approximately 0.7 inches), precisely sized to match the barrel dimensions of compatible ETA movements for a secure, reliable fit.

Q: Is this mainspring suitable for DIY watch repair or only for professionals?

A: While professional watchmakers will find this a convenient, quality spare part for movement overhauls, experienced hobbyists and DIY watch repair enthusiasts with the appropriate tools can also install this mainspring. Basic watchmaking tools and movement knowledge are recommended for a successful installation.

Q: What material is this mainspring made from?

A: This replacement mainspring is constructed from durable materials sized to the original ETA specifications, finished in silver to match the internal components of compatible calibres.