Comsco Mainspring #1122 for Hamilton 18/0s Factory No. 2721 – Steel
USD 3.00 USD
Specifications
| Brand | Comsco |
| Country Of Origin | United States |
| MPN | #1122 |
| SKU | PMA-COM1122S-12 |
| Type | Mainspring |
Distributed by Burton M. Reid and Sons. 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.