BESTFIT Mainspring 615C for AS caliber 969 & Benrus U - Alloy

BESTFIT Mainspring 615C for AS 969 & Benrus "U" caliber movements plus perhaps similar ébauche watches, white alloy, new in possibly dirty 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 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.