Bestfit Balance Staff for Landeron Caliber 47, 48, 49, 51 movements - New

One Bestfit System 100 Balance Staff #428 for Landeron caliber 47, 48, 49, 51 Chronograph movements and perhaps others as well, new in open envelope. See images for further details. These came packaged a number of different ways as shown in the photos.  I specialize in hard to find parts so I'll usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.