HR Mainspring No. 429A for ETA 1150, Font 120, NFT 39, Unitas 190 - Steel

HR No. 429A mainspring for ETA 1150, Font 120, NFT 39, Unitas 190 and AS 1250 caliber movements, steel, new in envelope. See images for all calibers supported and 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.