Description: New Old Stock (NOS) mainspring for mechanical watch movements. This spring is supplied in its original foil packaging and is suitable for the calibres or movement sizes listed below. Ideal for watchmakers, restorers, and vintage watch repair projects.
Key Details:
Brand: Federal
Part Type: Mainspring
Height: 1.70mm
Thickness: 0.11mm
Length: 300mm
Additional Notes:
Martin 7 - 16
Federal Ref: 4906
Diameter: 9mm
Condition:
Vintage New Old Stock (NOS)
Unused
Supplied in original foil packaging
Some age-related wear or marking to packaging may be present
Summary: Quality vintage New Old Stock (NOS) mainspring suitable for mechanical watch repair, restoration, and servicing work. A reliable replacement part for maintaining or restoring vintage watch movements.
As usual, this item will be packaged carefully and dispatched with tracking. International shipping is available upon request.
