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Swartchild & Co

Swartchild Black Shield Mainspring #4374 for 16s South Bend No. 217528 - Steel

Swartchild Black Shield Mainspring #4374 for 16s South Bend No. 217528 - Steel

Regular price $7.50
Regular price Sale price $7.50
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Swartchild & Co. Black Shield Mainspring No. 4374 for 16s South Bend 1st Model movements, Factory No. 217528, steel, new in envelope. See images for further details and precise mainspring specifications. I likely have several of these so the one you get may differ slightly from the images. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.

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