Swartchild Black Shield SUPER Mainspring for Felsa 330P, 331, 332, 334, 340, 345, 347 - Alloy

Swartchild Black Shield SUPER Mainspring for Felsa 330P, 331, 332, 334, 340, 345, 347 caliber movements plus similar ébauche watches, white alloy, new in envelope. I likely have several of these so the one you get may differ slightly from the images. See images for precise specifications. I specialize in hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.