NEWALL Mainspring #1232N for Felsa 220, 221, 630, 631, 632, Gruen 676, 678 - Alloy

NEWALL N-DUR-ALL alloy mainspring #1232N for Aurore 16, 16T, Felsa 220, 221, 630, 631, 632, Gruen 676, 678, Freco 40G caliber movements plus perhaps many others, new in envelope. See images for precise mainspring specifications. 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 a pretty good job of representing the item.