BOREL Mainspring SA406 for Illinois 16s 60hr Factory No. 47309 – Alloy
USD 22.50 USD
Specifications
| Brand | BOREL |
| Country Of Origin | Switzerland |
| MPN | JA-406 |
| SKU | PMA-MSJA406A-07 |
| Type | Mainspring |
I likely have several of these so the one you get may differ slightly from the images. Images do a pretty good job of representing the item. Illinois Watch Co Materials Catalog Dec 1923 - reprint. Waltham Watch Material Catalogue 1909 edition - reprint.
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