Marco Mainspring #251 for 6s Waltham Factory No. 2217 - Steel

Marco Mainspring #251 for Waltham 6s Model 1889 movements, Factory No. 2217, steel, new in possibly frail 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 usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.