HR Nivastar Mainspring G541 for Precimax 400, 450, Wittnauer 11RW, Forster 800, Benrus DT - Alloy

HR Nivastar Mainspring No. G541 for Precimax 400, 450, Wittnauer 11RW, Benrus DT, Forster 800 caliber movements plus perhaps other similar ébauche watches, alloy, new in envelope. See images for precise mainspring specifications. 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 suitable job of representing the item.