Marco Mainspring #2868 for AS 558, Felsa 410, 415, 690, 692, Gruen 325, 2351 - Steel

Marco Mainspring No. 2868 for AS 558, Felsa 410, 415, 690, 692, Gruen 325, 2351 caliber movements plus perhaps similar ébauche watches, steel, new in envelope. See images for precise mainspring specifications. I likely have several of these so the one you get may differ slightly from the images. I specialize is hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.