Fast Shipping! Item ships out next day via USPS Ground Advantage with a tracking number after successful payment is completed. If you have any questions, feel free to dm me! (I have ALOT more mainsprings I will be adding over time from various brands such as marco, black shield, bulova, tru time, samson, and more. So keep an eye out!)
Hampden mainspring 11/0 NOSWatch, Co. 11696 MPN No.383 (2total)
New old stock mainspring 2 total
N.Y. Stand Mainspring MPN No. 589/585 Co. No. 3349 2189 NOS
New old stock
Hampden mainspring NOS 16 Size Co. No.4697 MPN 376 (3 total)
New old stock mainspring This comes with 3 springs