Comsco Mainspring #1109 for Hamilton 16s Factory No. 534 – Steel
USD 8.00 USD
Specifications
| Brand | Comsco |
| Country Of Origin | United States |
| MPN | 1109 |
| SKU | PMA-COM1109S-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. South Bend Watch Material Catalog Oct 1928 - reprint.