HR Mainspring No. 432 for Bulova 6AH, 6AK, 6AM, 6AU, 6AX & 6WM movements - steel

HR No. 432 mainspring for Bulova caliber 6AH,6AK, 6AM, 6AU, 6AX, 6WM plus Aurore 123, Unitas 180 & Central (Benrus) AB movements and perhaps many others, steel, new in envelope. See images for 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.