BESTFIT Mainspring 711E for Blancpain 40 & AS 1053 - Alloy

BESTFIT Mainspring 711E for Blancpain caliber 40 and AS caliber 1053 plus perhaps other similar ébauche watches, white alloy, 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 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.