BESTFIT Mainspring 611M for FEF 290, 330, 310 & 340 & AS 1475 Alarm - Alloy

BESTFIT Mainspring 611M for AS 1475 Alarm (TIME side) and Fleurier 290, 330, 310, 340 caliber movements plus perhaps similar ébauche watches, white alloy. See images for precise characteristics. I likely have several of these so the one you get may differ slightly from the images. 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.