BESTFIT Mainspring WA39 for Universal caliber 25 Automatic - Alloy

BESTFIT Mainspring WA39 for Universal caliber 25 Automatic plus perhaps similar ébauche watches, white alloy, with attached bridle, new in envelope. See image for precise mainspring specifications. I likely have several of theses 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.