High-quality New Old Stock mainspring manufactured in Germany for mechanical clock movements. Made from hardened spring steel to original factory specifications, providing smooth, consistent power delivery and long-term reliability.
This unused old stock mainspring is ideal for professional clockmakers, restorers, and collectors seeking authentic replacement parts. The hole-end design allows secure attachment to the winding arbor and is suitable for a wide range of traditional German and European clock movements.
Specifications:
Condition: New Old Stock (unused)
Origin: Germany
Type: Mainspring – Hole End
Width: 14 mm
Thickness: 0.2 mm
Length: 1400 mm
Material: Hardened spring steel
Suitable for:
Mechanical clocks, including many German and European movements (please verify dimensions before purchase).









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