New Old Stock (NOS) German-Made Mainspring – Hole End (17 × 0.2 × 1300 mm)

German Clock Mainspring – 17 × 0.2 × 1300mm

This New Old Stock German clock mainspring 17mm wide is an unused hole-end replacement spring for compatible mechanical clock movements. Manufactured in Germany from hardened spring steel, it is intended for restoration work where the original mainspring is broken, fatigued or no longer delivering reliable power.

The spring measures 17mm wide × 0.2mm thick × 1300mm long. Its hole-end design is used on many traditional mechanical clock applications, but mainsprings must always be matched carefully to the original dimensions, barrel and attachment arrangement.

Specifications

• Condition: New Old Stock, unused
• Origin: Germany
• Type: Hole-end mainspring
• Width: 17mm
• Thickness: 0.2mm
• Length: 1300mm
• Material: Hardened spring steel

Suitable For

• Compatible German and European mechanical clocks
• Clock movement repair and servicing
• Restoration of antique and vintage mechanisms
• Professional clockmakers and experienced repairers

Important

Please measure the original mainspring and confirm the width, thickness, length and end style before ordering. An incorrectly sized mainspring can affect power delivery and may damage a movement.

Explore More Mainsprings

Our Mainsprings range includes replacement and New Old Stock clock mainsprings in different widths, thicknesses, lengths and end styles for antique, vintage and mechanical clock repair and restoration.