BESTFIT Mainspring 1012L for Kurth calibers 300 thru 314 + 23 & 14 - Alloy

BESTFIT Mainspring 1012L Kurth calibers 300, 301, 304, 310, 311, 314, 23, 14 plus perhaps 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.