HR Ev-R-Last Mainspring E599 for Blancpain caliber 41 - Steel

HR Ev-R-Last Mainspring E599 for Blancpain caliber 41 plus perhaps other similar ébauche watches, steel, new in envelope. See image 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.