Trufit Mainspring – Elgin 5550 for 15/0s movements – Steel
USD 2.50 USD
Specifications
| Brand | Trufit |
| Country/Region Of Manufacture | Switzerland |
| MPN | #5550 |
| SKU | PMA-TRU5550S-11 |
| Type | Mainspring |
15/0s are usually grades 536, 537, 538, 557, 558, 559, 623, 624 & 626. B&C Trufit mainsprings were distributed by Barton & Chase of Philadelphia but I'm pretty sure they are made in Switzerland. Images do a pretty good job of representing the item.