Swartchild Black Shield Mainspring #4341½ for Waltham 0s & 3/0s No. 2230 – Steel
USD 4.00 USD
Specifications
| Brand | Swartchild |
| Country/Region Of Manufacture | Switzerland |
| MPN | 4341½ |
| SKU | PMA-SWAT4341S-09 |
| 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. Fulton Watch Crystal Corp Fit-Tite Catalogue No. 2 - reprint.