Gruen Factory Balance Staff for caliber 405 New Model - New

Gruen Factory Balance Staff for caliber 405 NM movements and possible variants, new in open envelope. See images for further details. I likely have several of these so the one you get may differ slightly from the images. I specialize is hard to find watch 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.