NOS Sandsteel 1164 Watch Mainspring For Swiss Watches 1.05 x .0725 mm

Specifications

Genuine NOS (New Old Stock) Sandsteel watch mainspring. Manufacturer: Sandsteel Part Number: 1164 For Swiss watches Metric Size: 1.05 mm × 0.0725 mm Original Sandsteel paper envelope included Unused vintage watchmaker stock Made in the USA This mainspring has never been installed but may show minor age or storage wear consistent with decades of storage. Please verify compatibility with your movement before purchasing, as there are no returns for incorrect fitment. Ships securely packaged to protect the mainspring and original envelope.

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