Sandsteel Mainspring for Elgin 12s No. 1712 – Steel
USD 6.00 USD
Specifications
| Strength | .018 |
| Brand | Sandsteel |
| Country Of Origin | United States |
| MPN | 1712 |
| SKU | PMA-SAND1712S-1 |
| 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. Waltham Watch Material Catalogue 1909 edition - reprint. South Bend Watch Material Catalog Oct 1928 - reprint.